FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
COMPLETE SPECIFICATION
[See section 10]
A DEVICE FOR SPILLAGE FREE TRANSFERRING VOLATILE LIQUIDS FROM A BOTTLE TO THE RESERVOIR OF A VAPORISER;
PIRAMAL HEALTHCARE LTD., A COMPANY INCORPORATED UNDER THE COMPANIES ACT, 1913, WHOSE ADDRESS IS PIRAMAL TOWER, GANPATRAO KADAM MARG, LOWER PAREL, MUMBAI 400 013, MAHARASHTRA, INDIA.
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.

FIELD OF INVENTION:
This invention relates to devices used in transferring volatile liquids like anesthetic agents from container to a reservoir attached to a vaporiser.
BACKGROUND OF THE INVENTION:
Inhalation anesthetic agents are volatile substances with relatively low boiling points, high vapor pressures and are stored in bottles in liquid state. Anesthesia is administered to a patient for the required duration (usually the duration of surgery) by allowing the patient to breathe a carefully controlled mixture of oxygen, nitrous oxide, and a suitable selected anesthetic agent via an anesthetic vaporizer attached to an anesthesia machine.
Accidental inhalation of the vapor by health care personnel can cause drowsiness and repeated inhalations over a period of time can be a health hazard and harmful.
Devices that minimize the likelihood of the escape of an anesthetic agent to the atmosphere are known in the art. Designs of these devices are attempts to ensure that during connecting and disassembly of a supply container, exposure of volatile anesthetic agent to the atmosphere is minimised. Also vaporizers attached to anesthetic machines are intended for use with specific anesthetic agent and provisions are required to prevent accidental mix-up of containers at the setup stage. Conventionally the anesthetic container and its closure are provided with specific shape or projection, and the connecting adapter has a complementary shape or recesses for mating with the container closure. However the existing devices are not fail-safe and are likely to be damaged due to prolonged use and due to careless storing and handling.

US patent 5381836 discloses a system for delivery of volatile liquid drugs as supplied to a patient by an anesthetic vaporizer comprises a supply container and a vaporizer which includes a sump. Each of the supply container and the vaporizer is provided with a valve assembly which, when closed, prevent passage of fluid from the supply container into the sump. The supply container and the sump are connected to one another by means of a bayonet connection, which is made when indexing elements on the containers correspond. The valve assemblies in the containers are opened when the containers are connected to one another by means of an insert located within an inlet conduit linking the two containers. The inlet conduit is rotatable between lowered and raised positions, to open a valve by which flow of fluid into and out of a reservoir for fluid in the sump can be controlled.
In this disclosure the opening and closing of the valve assemblies provided in the supply container and the vaporizer do not control the flow of the volatile liquid from the container to the vaporiser sump. The inlet conduit is rotated from a lower position to a raised position to open a valve (provided between the inlet conduit and the receiver sump) by which flow of fluid is controlled. There are no provisions in this arrangement to prevent escape of fluid, trapped between the valve assemblies provided in the supply container and the vaporizer, to the atmosphere while the container is being disconnected from the receiver.
US patent 5505236 discloses a system for the delivery of a liquid anesthetic agent to an anesthetic vaporizer. The system includes a supply container having a spout defining an outlet through which the agent can be discharged. A reservoir is provided in the vaporizer for holding the agent, and a receiving

station is provided on the vaporizer for receiving the container spout. The agent flows from the container through the spout by gravity into the reservoir. The container spout is located at the station to define the maximum liquid level of the agent in the vaporizer when gas flow into the container is blocked by the rising fevef of the LIquid agent, In one embodiment, a frangible seal is provided in the container, an outlet valve is provided in the container, and an inlet valve is provided in the receiving station. The valves open automatically as the container is inserted into the receiving station of the vaporizer. Also, the container spout is preferably movable relative to a collar so as to automatically effect rupture of the frangible membrane as the container is inserted into the receiving station of the vaporizer.
This system operates with a spring controlled outlet valve in the container, and an inlet valve in the receiving station. The container is also provided with a movable spout to open the valves automatically as the container is inserted into the receiving station of the vaporizer. The operation sequence of opening the receiving station valve first is achieved by the providing a spring having less compression force in the receiving station valve as compared to the container valve. This arrangement is not a failsafe system and may lead to spillage in prolonged usage of the device.
US patent 5687777 discloses an anesthetic vaporizer filler valve that can be used in conjunction with anesthetic agent bottles currently commercially available and which have standard keying systems with rotating collars having lugs extending therefrom. The standard collar of such anesthetic agent bottles is keyed into the vaporizer filling valve. The vaporizer filler valve has an internal valve that must be opened in order to introduce the liquid anesthetic

agent into the vaporizer sump. By means of a corresponding slot in the vaporizer filler valve that correspond with mating lugs of the standard anesthetic agent bottle, only a proper anesthetic agent bottle can engage and be screwed into the filler valve designed for that specific anesthetic agent.
The device disclosed in the document is suitable for preventing accidental mix-up of anesthetic containers containing not suitable anesthetic agents from being fitted to a vaporiser at the setup stage. The opening and closing sequences of the valves are not part of this disclosure.
US patent 6585016 discloses a system for facilitating the delivery of a liquid anesthetic agent from an anesthetic bottle to an anesthetic vaporizer. The system includes a bottle adapter, an anesthetic bottle and a filler arrangement positioned on the anesthetic vaporizer. The bottle adapter and filler arrangement each include a keyed configuration such that only the correct type of anesthetic agent can be emptied into the anesthetic vaporizer. The bottle adapter includes an adapter valve assembly that engages a filler valve assembly contained within the filler. The dimensions and arrangement of the adapter valve assembly and the filler valve assembly insure anesthetic agent is delivered to the anesthetic vaporizer only when the anesthetic agent can safely flow from the anesthetic bottle to the anesthetic vaporizer.
The device disclosed in the document is suitable for preventing accidental mix-up of anesthetic containers containing not suitable anesthetic agents from being fitted to a vaporiser at the setup stage. The opening and closing sequences of the vafves are not part of this disclosure.

There is a need for an improved connecting device to minimize the likelihood of leakage of the volatile liquid or vapour, independent of the operator skill and ensure connection of correct anesthetic containers to the vaporizer inlets.
WO/2010/109488 discloses devices that provide an improvement, wherein the fluid passage between the anesthetic container and the vaporizer is provided with closure arrangements that are operable by movement of a receiver subassembly attached to the container relative to the receiver subassembly attached to the vaporizer in two stages, in the first stage of the said relative movement, the valve assembly (closure arrangement) provided in the receiver subassembly attached to the vaporiser is opened and then in the second stage movement, the valve assembly (closure arrangement) attached to the container is opened to establish fluid flow through the device. In disconnecting the container from the vaporizer the sequence as above is reversed and disconnection also takes effect in two stages, which specifically is effective in preventing escape of the volatile anesthetic agent to the atmosphere. This sequential opening and closing of the valve assembly (closure arrangement) prevents escape of the volatile anesthetic agent to the atmosphere while connecting or disconnecting the filled container to or from the vaporizer and thereafter from the fluid passage path of the transfer device. Three categories of relative movements were provided to achieve above sequence of opening and closing the closure arrangement - (a) a "rotate-rotate" type, (b) "rotate-push" type and (c) "push-push" type. Entire content of this publication is hereby incorporated by reference. Various models provided giving examples of above categories. However, under operational conditions, when the container was attached to the receiver, the container had to be held in place

by an operator by pressing the container in to the receiver sub assembly attached to the vaporiser- Also the closure arrangements of the receiver sub assemblies provided at the vaporiser end and the container end were operated by linear movements of the elements of the closure arrangement although the relative movement used involved angular (rotational) movement of one the receiver sub assembly. Further, in this type of the movement of elements of the closure arrangement does not rule out, by an in built design feature, that the two closure elements do not operate at the same time by a coincidence.
OBJECTS OF THE INVENTION:
One of the objects of this invention is to provide a connecting device adapted to transfer volatile substances from a container to a reservoir of a Vaporiser.
Yet another object of this invention is to provide a connecting device that is adapted to prevent the escape of an anesthetic gas to the atmosphere.
Another object of this invention is to provide a connecting device that is not easily damaged in storage and over sustained usage.
Another object of this invention is to provide a connecting device that is simple in construction.
Another object of this invention is to provide a connecting device that is safe to operate.
Yet another object of this invention is to provide a connecting device having enhanced operational features with regards to unconsumed liquefied gas stored in the storage container.

It is object of the present invention to solve above and other problems related to transferring volatile liquids like anesthetic agents from container to vaporiser.
BRIEF DESCRIPTION OF THE DRAWINGS:
The invention will particularly be described with reference to the accompanying drawings, in which:
Figure 1 is a sectional elevation of the device in accordance with this invention;
Figure 2 is an exploded perspective view of the adapter (sub assembly attached to the container) of this invention as shown in figure 1;
Figure 3 is a sectional elevation of the adapter of this invention, as shown in figure 1;
Figure 4 is an exploded perspective view of the receiver sub assembly attached to the vaporizer of this invention as shown in figure 1;
Figures 5-A and 5-B are sectional elevation of the device of this invention, as shown in figure 1, showing the receiver sub assembly, adapter and liquid container at the stage of engagement, prior to commencement of flow of contained fluid;
Figures 6-A, 6-B and 6-C are enlarged sectional elevation of the device of this invention, as shown in figure 1, showing the receiver sub assembly and adapter connected to one another at the end of the first relative linear movement of the adapter, prior to commencement of flow of contained fluid wherein one of the sealing member of the device is in open condition;

Figures 7-A, 7-B and 7-C are the sectional elevation and enlarged views of the device of this invention, as shown in figure 1, showing the receiver sub assembly, adapter and liquid container at the end of the second relative angular movement of the adapter wherein the sealing members the adapter and the receiver sub assembly are in open condition and the contained liquid flows out of the receiver sub assembly out let;
Figures 8-A and 8-B are enlarged perspective views of the device of this invention, as shown in figure 1, showing the adapter sealing member in open condition;
Figure 9 is an enlarged perspective view of the spring holder provided in the adapter assembly of the device of this invention, as shown in figure 1; and
Figure 10 is an enlarged perspective view of the bush provided in the receiver sub assembly of the device of this invention, as shown in figure 1.
SUMMARY OF THE INVENTION:
This invention embodies a device (100) for transferring volatile fluid from a container to a receiver comprising an adapter (50) configured to be secured to said container (60) and a receiver sub assembly (30) adapted to be secured to said receiver; said adapter and receiver sub assembly provided with components complementary to one another and movable sealing elements adapted to selectively engage with one other such that in an operative receiver filling configuration, movement of the adapter relative to receiver sub assembly leads to first open the sealing element in receiver sub assembly to connect fluid path to the receiver and next open the sealing element in the adapter to connect a fluid passage path from the container to the receiver

sub assembly, and in an operative stop-filling configuration, the movement of adapter relative to receiver sub assembly in reverse direction leads to close the sealing element of the adapter prior to closure of the sealing element in the receiver sub assembly; characterized in that in an operative configuration the adapter (50) and the receiver sub assembly (30) are configured to be linked to one another by engagement of said complementary components and relative movement of the components of said receiver sub assembly sealing element is linear along its axis and of the said adapter sealing element is angular/rotational around its axis.
This invention is illustrated by device wherein the receiver sub assembly (30) further comprising: a housing (21) provided with an annular seat; an inner movable element (25) having a complementary seat; a retaining bush (27); a moving bush (37) and a resilient spring (23) adapted to apply bias on said movable element (25).
In one of the embodiments of this invention the retaining bush (27), comprises at least two inwardly projecting dowel pins (43) configured to engage mating slots provided on the periphery of said moving bush (37); said engagement adapted to permit only axial movement of said moving bush (37) with reference to said retaining bush (27).
In another embodiment of the device the movable element (25) is adapted to be axially displaced by said axial movement of the moving bush (37).
This invention is further illustrated by a device wherein the adapter (30) comprising, a hollow cylindrical housing member (11) defining an internal passage having an peripheral slot shaped opening; a sealing member (9); a resilient spring element (7); and a hollow cylindrical spring holder (5); in an

inoperative condition of the device said spring holder (5) is adapted to apply resilient bias on said sealing member to keep said opening sealed against fluid flow; said spring holder (5) provided with inwardly projecting formations (32 a and 32 b) having pre selected dimensions and orientation differing from one other; in an operative configuration of the device said formations adapted to slidingly enter mating slots (34a and 34b) and engage a hook shaped formation (28) provided on the bush (27); relative angular movement between the receiver sub assembly (50) and the adapter (30) adapted to displace said sealing member (9) away from said opening.
This invention also embodies a method of transferring volatile fluid from a container to a receiver, said method comprising the steps of: providing an adapter configured to be secured to said container; providing a receiver subassembly adapted to be secured to said receiver; providing said sub assemblies with components complementary to one another and movable sealing elements adapted to selectively engage with one other; matching and assembling of said sub assemblies to one another; in an operative receiver filling configuration first applying forward axial displacement of said adapter with reference to said receiver subassembly to open sealing element of said receiver sub assembly and to rotate said adapter with reference to the receiver sub assembly to open sealing element of said adapter to transfer said fluid from said container to the receiver and rotate in an opposite direction followed by backward axial displacement and in an operative stop-fifling configuration to first close the sealing element of the adapter followed by closure of sealing elements of the receiver sub assembly to stop said fluid transfer.

DETAILED DESCRIPTION OF INVENTION
The present invention provides a connecting device for coupling a container containing volatile anesthetic agent to a vaporizer unit attached to an anesthetic administering machine. The connecting device comprising a receiving head (a receiver subassembly attached to the vaporizer) adapted to be connected to the vaporizer and an adapter (a subassembly attached to the container) configured to be connected to the container containing volatile anesthetic agent. The receiver sub assembly and the adapter are provided with internal components adapted to close the fluid passages in an inoperative condition of the device.
According to the present invention the sealing members provided in the receiver sub assembly and the adapters are operated by a relative linear movement of the adapter attached to the container in the first stage and a relative angular (rotational) movement of the adapter in the second stage respectively. Thus, this mechanism provides a "push-rotate" type of movement for starting the fluid flow from the container to the vaporizer and a reverse action to stop the fluid flow. In the first stage movement the sealing member provided in the receiver sub assembly is opened by an axial movement along the axis/length of the sealing/closure element to connect the receiver sub assembly fluid passage path to the receiver of the vaporizer. In the second stage movement the sealing member provided in the adapter is opened by a rotary/angular movement around its axis to establish fluid flow through the device. This sequential opening of the sealing members prevents escape of the volatile anesthetic agent to the atmosphere while connecting a container to the vaporizer. The operational requirement of the design feature requires that

opening of the sealing member provided in the receiver sub assembly should be by an axial movement and opening of the sealing member provided in the adapter should be by a rotary/angular movement around its axis; both the movements can not operate concurrently even in exceptional circumstances.
The assembly of receiver sub assembly and adapter work on the principle of press and rotate in an angular movement to open the seat mechanism of sealing members provided in the receiver sub assembly and the adapter respectively.
The anesthetic agent (liquid) is filled in the bottle and the bottle is closed with adapter. To transfer the liquid from the bottle to the evaporator the adapter has to be inserted in the opening of receiver sub assembly provided on the vaporiser.
The bush provided of the receiver sub assembly of the Vaporiser has agent specific slots which will match the ridges on the spring holder. This will ensure agent specific use of the assembly preventing accidental use of any other anesthetic agent apart from the one for which the assembly has been designed and also additionally ensures correct orientation of the opening slot of bottom part for complete drainage of the liquid.
Referring to figure-1, the device for transferring of volatile fluids in accordance with the present invention is indicated by reference numeral (100). The device (100) comprising: a receiver sub assembly indicated by reference numeral (30) and an adapter indicated by reference numeral (50).
Referring to figures 2 and 3, the adapter (50) consists of bottom part (1) and top part (3). A spring holder (5) and a spring (7) are fitted at one of the open

end of the adapter (50). The bottom part (1) is configured to be fitted to the bottle (not specifically shown). The spring holder (5) fits with top part (3) and is provided with inwardly projecting ridges {Refer figure 9 - (32 a) and 32 b)}. The dimensions (width) of these projections are different from one other in size but are complementary to slots {Refer Figure 10 - (34 a) and (34 b)} provided on the bush (27) of the receiver sub assembly (30). These projecting ridges engage the mating slots in a predetermined orientation of the adapter sub assembly and receiver sub assembly.
One end of spring (7) fits with bottom part (1) and the other end with spring holder (5) permitting angular movement between bottom part (1) and top part (3). A plug shaped sealing member (9) sits on the top periphery of the bottom part (1) which prevents any liquid flow from bottom part (1). A gasket (11) provided between the bottom part (1) and the bottle prevents leakage of the liquid from the bottle by ensuring tight seal. O-ring (13) prevents leakage of the liquid from the adapter by ensuring tight seal. A removable safety cap (15) protects the components of the adapter from ingression of foreign particles.
Referring to figure-4, the receiver sub assembly (30) consists of receiving body (21) adapted to receive a resilient spring (23), a movable pin (25), a bush (27), gaskets (29 and 31), O-rings (33 and 35), moving bush (37), spring (39) and a safety cap (41). In an operative configuration the components of the receiver sub assembly (30) are positioned inside the body (21) by the complementary threaded connection between the body (21) and the bush (27). The bush (27) is provided with slots {Refer Figure 10} (34 a) and (34 b) and hook like formation (28) formed on the outer periphery of the bush (27). The inwardly projecting ridges (32a) and (32b) of the spring holder (5) are configured to

slidingly enter the slots (34a) and (34b) and to lock the adapter (50) to the receiver sub assembly (30) by the engagement of the hook like formation (28) and the ridges (32a) and (32b). The moving bush (37) slides axially on the bush (27) and applies locking force to the adapter (50). Pin (25) is movable part of the receiver sub assembly. Relative inward movement of the pin (25) with reference to body (21) within the receiver sub assembly (30) opens the seal between body (21) and pin (25) of the receiver sub assembly. Spring (39) provides locking pressure for the moving bush (37). The Safety cap (41) protects the components of the receiver from ingression of foreign particles. Safety cap (41) is screwed on to Vaporizer Body (21). Four peripherally located dowel pins (43) provided near operative top edge of the bush (27), projecting inwards to the axis engage the slots provided on the moving bush (37) to permit relative linear movement along the axis and prevent relative angular movement between the bush (27) and the moving bush (37).Figures 5 to 7 show the steps involved in transferring volatile liquids like anesthetic agents from a bottle to an evaporators.
Figures 5-A and 5-B indicate the stage in which the device is set-up for transferring volatile fluid. The adapter (50) is fitted to a volatile liquid container (60) containing fluid to be transferred and inserted into the receiver sub assembly (30) after removing the respective safety caps (41 and 15). On insertion, the inwardly projecting ridges {Refer Figures 9 and 10} (32a) and (32b) of the spring holder (5) slidingly enter the slots (34a) and (34b) and to lock the adapter (50) to the receiver sub assembly (30) by the engagement of the hook like formation (28) and the ridges (32a) and (32b). Provision of matching tapers and rounded edges on the ridges (32a) and (32b) and the

hook like formation (28) permit smooth and automatic engagement between them. At this stage fluid flow through the device does not commence but the container along with the adapter is locked together as one unit and is set up to commence liquid transfer. This aspect of locking the adapter and receiver sub assembly permits the container to be left in a ready position and overcomes the limitation in the earlier designs wherein the container had to be held in place by an operator by pressing the container in to the receiver sub assembly.
Figures 6-A, B and C indicate the first stage, in which the container (60) is pressed (as indicated by arrow 65) with the adapter (50). This movement opens the flow path (A) opening the seal between the body (21) and pin (25) of the receiver sub assembly (30).
Figures 7-A, B and C indicate the second stage, in which the container (60) is rotated (as indicated by arrow 70) with the adapter (50). This movement opens the flow path (B) due to relative movement between bottom part (1) and top part (3) which causes the opening provided near the top periphery of the bottom part (1) to move away from the plug shaped sealing member (9) permitting liquid contained in the container (60) to flow through the bottom part (1). The sequence of operation ensures that seal arrangements provided in the device open one after the other due to positive linear and angular movement of the container thereby preventing accidental release of volatile liquid or vapour to the atmosphere. Disconnection of an empty or partly filled container from the device takes place in reverse sequence in stages in a safe manner.

Figure 8A shows locking arrangement between top part (3) of adaptor (50) and bush (27) of receiver (30). The ridges of differing dimension (Refer figures 9 and 10) provided on spring holder (5) engage with mating slots and hook formation on the bush (27) and locks the top part (3) of adaptor (50) and bush (27) of receiver (30).
Figure 8B shows opening mechanism of sealing elements provided in the adaptor (50). When container (60) is rotated with adapter (50), the bottom part (1) moves angularly with reference to top part (3) and spring holder (5) both of which remains stationary, as these two has been locked with bush (27). The plug shaped sealing member (9) which seals the radial opening provided near top periphery of the bottom part (1) remains stationary to uncover said radial opening to permit liquid flow from container (60) through the device (100) and in to the receiver.
The advantages provided by this invention are: (a) easy and quick locking of the receiver sub assemblies to one another on insertion of the container in to the vaporiser unit of the anesthetic machine providing a hands free operation facility to keep the container in engagement with the vaporiser; and (b) elements of one the sub assembly provided with axial movement only and the elements of the other sub assembly provided with only rotary/angular movement with reference to its axis.
While considerable emphasis has been placed herein on the particular features of a device for transferring liquids, the improvisation with regards to it, it will be appreciated that various modifications can be made, and that many changes can be made in the preferred embodiment without departing from the principles of the invention. These and other modifications in the nature of the

invention or the preferred embodiments will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the invention and not as a limitation.

WE CLAIM
1. A device (100) for transferring volatile fluid from a container to a
receiver comprising an adapter (50) configured to be secured to said
container (60) and a receiver sub assembly (30) adapted to be secured
to said receiver; said adapter and receiver sub assembly provided with
components complementary to one another and movable sealing
elements adapted to selectively engage with one other such that in an
operative receiver filling configuration, movement of the adapter
relative to receiver sub assembly leads to first open the sealing element
in receiver sub assembly to connect fluid path to the receiver and next
open the sealing element in the adapter to connect a fluid passage
path from the container to the receiver sub assembly, and in an
operative stop-filling configuration, the movement of adapter relative to
receiver sub assembly in reverse direction leads to close the sealing
element of the adapter prior to closure of the sealing element in the
receiver sub assembly; characterized in that in an operative
configuration the adapter (50) and the receiver sub assembly (30) are
configured to be linked to one another by engagement of said
complementary components and relative movement of the components
of said receiver sub assembly sealing element is linear along its axis
and of the said adapter sealing element is angular/rotational around its
axis.
2. A device as claimed in claim 1, wherein said receiver sub assembly
(30) further comprising: a housing (21) provided with an annular seat;
an inner movable element (25) having a complementary seat; a

retaining bush (27); a moving bush (37) and a resilient spring (23) adapted to apply bias on said movable element (25).
3. A device as claimed in claim 2, wherein said retaining bush (27), comprises at least two inwardly projecting dowel pins (43) configured to engage mating slots provided on the periphery of said moving bush (37); said engagement adapted to permit only axial movement of said moving bush (37) with reference to said retaining bush (27).
4. A device as claimed in claim 2, wherein the movable element (25) is adapted to be axial displaced by said axial movement of the moving bush (37).
5. A device as claimed in claim 1 wherein said adapter (30) comprising, a hollow cylindrical housing member (11) defining an internal passage having an peripheral slot shaped opening; a sealing member (9); a resilient spring element (7); and a hollow cylindrical spring holder (5); in an inoperative condition of the device said spring holder (5) is adapted to apply resilient bias on said sealing member to keep said opening sealed against fluid flow; said spring holder (5) provided with inwardly projecting formations (32 a and 32 b) having pre selected dimensions and orientation differing from one other; in an operative configuration of the device said formations adapted to slidingly enter mating slots (34a and 34b) and engage a hook shaped formation (28) provided on the bush (27); relative angular movement between the receiver sub assembly (50) and the adapter (30) adapted to displace said sealing member (9) away from said opening.

6. A method of transferring volatile fluid from a container to a receiver, said method comprising the steps of:
a. providing an adapter configured to be secured to said
container;
b. providing a receiver subassembly adapted to be secured to
said receiver;
c. providing said sub assemblies with components
complementary to one another and movable sealing elements
adapted to selectively engage with one other;
d. matching and assembling of said sub assemblies to one
another;
e. in an operative receiver filling configuration first applying forward
axial displacement of said adapter with reference to said
receiver subassembly to open sealing element of said receiver
sub assembly and to rotate said adapter with reference to the
receiver sub assembly to open sealing element of said adapter
to transfer said fluid from said container to the receiver and
rotate in an opposite direction followed by backward axial
displacement and in an operative stop-filling configuration, to
first close the sealing element of the adapter followed by closure
of sealing elements of the receiver sub assembly to stop said
fluid transfer.

7. A device and method for transferring volatile fluid from a container to a receiver as described herein, with reference to the accompanying drawings.