The present disclosure relates to the field of fluid filling apparatus
and more particularly the present disclosure relates to a device for accurately filling a pressurized fluid into a container.
BACKGROUND
[0002] Background description includes information that may be useful in
understanding the present invention. It is not an admission that any of the
information provided herein is prior art or relevant to the presently claimed
invention, or that any publication specifically or implicitly referenced is prior art.
[0003] Currently many industries around the globe use fluid present under
pressure inside tank/container. The pressurized fluid requires careful handling in every step. During the filling of fluid, it is observed that the fluid is filled beyond/under the limit of the tank/container. This happens in few cases for reasons like the operator doesn't know how much fluid should be filled inside. Also, sometimes the operator is aware of the filling amount but was careless while filling the fluid hence extra pressure is developed inside the tank. This can happen other way around too. Sometimes due to above discussed reasons pressure is kept lower than the required value. So, in industries such as Switchgear it will cause a serious issue of electrical insulation failure. On the other hand, if the pressure is higher than the required value then there may be an occurrence of mechanical damage to the panel. In both the cases of failure human safety will be compromised. So, to eliminate human error i.e.; ignorance & lack of knowledge an apparatus is developed.
[0004] There is, therefore, a need of an improved pressurized fluid filling
apparatus that is free from above discussed problems.
OBJECTS OF THE PRESENT DISCLOSURE
[0005] Some of the objects of the present disclosure, which at least one
embodiment herein satisfies are as listed herein bellow.

[0006] It is an object of the present disclosure to provide a pressurized
fluid filling device, which is effective.
[0007] It is an object of the present disclosure to provide a pressurized
fluid filling device, which avoid over/under filling of a container.
[0008] It is an object of the present disclosure to provide a pressurized
fluid filling device, which avoid spilling of the fluid.
[0009] It is an object of the present disclosure to provide a pressurized
fluid filling device, which is simple and easy to use.
[0010] It is an object of the present disclosure to provide a pressurized
fluid filling device, which is cost effective.
SUMMARY
[0011] The present disclosure relates to the field of fluid filling apparatus
and more particularly the present disclosure relates to a device for accurately filling a pressurized fluid into a container.
[0012] An aspect of the present disclosure pertains to a pressurized fluid
filling device that includes an inlet adapted to be configured with a pressurized fluid source, an outlet operatively configured with the inlet through a passage, and a fluid control mechanism. The outlet being adapted to be configured with a container to be filled with the pressurized fluid. The fluid control mechanism configured to facilitate a controlled filling of the pressurized fluid, through the passage into the container. The fluid control mechanism includes a flow control valve configured inside the passage and configured to switch between a first position and a second position. When the flow control valve is in the first position the passage is open and when the flow control valve is at the second position the flow the passage is blocked. A bellow operatively configured with the container and the control valve, and configured to move between a third position and a fourth position. When a pressure inside the container reaches a pre-defined value, the bellow inflates from the third position to the fourth position to stop further filling of the pressurized fluid into the container.

[0013] In an aspect, the flow control valve may be operatively configured
with the bellow through a limit switch electrically configured with an actuator.
The actuator may be operatively configured with the flow control valve to switch
the flow control valve between the first position and the second position.
[0014] In an aspect, when the bellow inflates to the fourth position, the
limit switch may be pressed by the bellow facilitating actuation of the actuator for switching the flow control valve to the second position. The flow control valve may be configured to stay at the second position till the outlet of the fluid filling device is configured with the container.
[0015] In an aspect, the fluid filling device may be coupled with the
pressure fluid source through an interlock. The interlock may allow cutting off the fluid supply into the container from the pressure fluid source and then the fluid filling device is decoupled from the container.
[0016] Various objects, features, aspects and advantages of the inventive
subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.
BRIEF DESCRIPTION OF DRAWINGS
[0017] The accompanying drawings are included to provide a further
understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure. The diagrams are for illustration only, which thus is not a limitation of the present disclosure.
[0018] In the figures, similar components and/or features may have the
same reference label. Further, various components of the same type may be distinguished by following the reference label with a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicable to any one of the similar

components having the same first reference label irrespective of the second reference label.
[0019] FIG. 1A-1B illustrates an exemplary representation of the
pressurized fluid filling apparatus, in an embodiment of the present disclosure.
[0020] FIG. 2A-2B illustrates an exemplary representation of
configuration of the pressurized fluid filling apparatus with a source and a container to be filled with the pressurized fluid, in an embodiment of the present disclosure.
DETAILED DESCRIPTION
[0021] The following is a detailed description of embodiments of the
disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure as defined by the appended claims.
[0022] In the following description, numerous specific details are set forth
in order to provide a thorough understanding of embodiments of the present
invention. It will be apparent to one skilled in the art that embodiments of the
present invention may be practiced without some of these specific details.
[0023] The present disclosure relates to the field of fluid filling apparatus
and more particularly the present disclosure relates to a device for accurately filling a pressurized fluid into a container.
[0024] The present disclosure elaborates upon a pressurized fluid filling
device that includes an inlet adapted to be configured with a pressurized fluid source, an outlet operatively configured with the inlet through a passage, and a fluid control mechanism. The outlet being adapted to be configured with a container to be filled with the pressurized fluid. The fluid control mechanism configured to facilitate a controlled filling of the pressurized fluid, through the passage into the container. The fluid control mechanism includes a flow control

valve configured inside the passage and configured to switch between a first
position and a second position. When the flow control valve is in the first position
the passage is open and when the flow control valve is at the second position the
flow the passage is blocked. A bellow operatively configured with the container
and the control valve, and configured to move between a third position and a
fourth position. When a pressure inside the container reaches a pre-defined value,
the bellow inflates from the third position to the fourth position to stop further
filling of the pressurized fluid into the container.
[0025] In an embodiment, the flow control valve can be operatively
configured with the bellow through a limit switch electrically configured with an
actuator.
[0026] In an embodiment, the actuator can be operatively configured with
the flow control valve to switch the flow control valve between the first position
and the second position.
[0027] In an embodiment, when the bellow inflates to the fourth position,
the limit switch can be pressed by the bellow facilitating actuation of the actuator
for switching the flow control valve to the second position.
[0028] In an embodiment, the fluid filling device can be coupled with the
pressure fluid source through an interlock.
[0029] In an embodiment, the interlock can allow cutting off the fluid
supply into the container from the pressure fluid source and then the fluid filling
device is decoupled from the container.
[0030] In an embodiment, the flow control valve can be configured to stay
at the second position till the outlet of the fluid filling device is configured with
the container.
[0031] FIG. 1A-1B illustrates an exemplary representation of the
pressurized fluid filling apparatus, in an embodiment of the present disclosure.
[0032] FIG. 2A-2B illustrates an exemplary representation of
configuration of the pressurized fluid filling apparatus with a source and a
container to be filled with the pressurized fluid, in an embodiment of the present
disclosure.

[0033] As illustrated, a pressurized fluid filling device 100 can includes an
inlet 102 that can be adapted to be configured with a pressurized fluid source 200. An outlet 104 can be operatively configured with the inlet through a passage 106. The outlet 104 can be adapted to be configured with a container 300 to be filled with the pressurized fluid. A fluid control mechanism can be configured to facilitate a controlled filling of the pressurized fluid, through the passage into the container. The fluid control mechanism includes a flow control valve 108 configured inside the passage 106 and can be configured to switch between a first position and a second position. A bellow 110 operatively configured with the container 300 and the flow control valve 108, and can be configured to move between a third position and a fourth position. The pressurized fluid can include but not limited to sulphur hexafluoride SF6. The container can include but not limited to a ring main unit (RMU).
[0034] The flow control valve 108 can be operatively configured with the
bellow 110 through a limit switch 112 that can be electrically configured with an
actuator 114. The actuator 114 can be operatively configured with the flow
control valve 108 to switch the flow control valve between the first position and
the second position. When the flow control valve is in the first position the
passage is open and when the flow control valve is at the second position the flow
the passage is blocked. When a pressure inside the container 300 reaches a pre¬
defined value, the bellow 110 can inflate from the third position to the fourth
position to stop further filling of the pressurized fluid into the container.
[0035] In an embodiment, when the bellow inflates to the fourth position,
the limit switch 112 can be pressed, by the bellow 110, facilitating actuation of the actuator 114 for switching the flow control valve 108 to the second position. The flow control valve 108 can be configured to stay at the second position till the outlet 104 of the fluid filling device 100 is configured with the container 300. The pre-defined pressure inside the container can be referred to a pressure level inside the container 300 corresponding to a maximum level till which the container needs to be filled with the pressurized fluid. The bellow 110 can be disposed in a guide way such that the switching or inflation of the bellow 110 to the second

position can facilitate pressing the limit switch 112. The limt switch 12 can be couped with nofication device such as an alarm. The fluid filling device may be coupled with the pressure fluid source through an interlock. The interlock may allow cutting off the fluid supply into the container from the pressure fluid source and then the fluid filling device is decoupled from the container. A selection of the bellow 110 can be done based on the fluid pressure.
[0036] Moreover, in interpreting the specification, all terms should be
interpreted in the broadest possible manner consistent with the context. In particular, the terms "comprises" and "comprising" should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refer to at least one of something selected from the group consisting of A, B, C ....and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc.
[0037] While the foregoing describes various embodiments of the
invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.
ADVANTAGES OF THE INVENTION
[0038] The proposed invention provides a pressurized fluid filling device,
which is effective.
[0039] The proposed invention provides a pressurized fluid filling device,
which avoid over/under filling of a container.
[0040] The proposed invention provides a pressurized fluid filling device,
which avoid spilling of the fluid.

[0041] The proposed invention provides a pressurized fluid filling device,
which is simple and easy to use.
[0042] The proposed invention provides a pressurized fluid filling device,
which is cost effective.

We Claim:

1. A pressurized fluid filling device comprising:
an inlet adapted to be configured with a pressurized fluid source; an outlet operatively configured with the inlet through a passage,
and adapted to be configured with a container to be filled with the
pressurized fluid;
a fluid control mechanism configured to facilitate a controlled
filling of the pressurized fluid, through the passage into the container, the
fluid control mechanism comprising:
a flow control valve configured inside the passage and configured to switch between a first position and a second position, wherein when the flow control valve is in the first position the passage is open and when the flow control valve is at the second position the flow the passage is blocked, and
a bellow operatively configured with the container and the control valve, and configured to move between a third position and a fourth position, wherein when a pressure inside the container reaches a pre-defined value, the bellow inflates from the third position to the fourth position to stop further filling of the pressurized fluid into the container.
2. The fluid filling device as claimed in claim 1, wherein the flow control valve is operatively configured with the bellow through a limit switch electrically configured with an actuator.
3. The fluid filling device as claimed in claim 2, wherein the actuator is operatively configured with the flow control valve to switch the flow control valve between the first position and the second position.
4. The fluid filling device as claimed in claim 1, wherein when the bellow inflates to the fourth position, the limit switch is pressed by the bellow facilitating actuation of the actuator for switching the flow control valve to the second position.

5. The fluid filling device as claimed in claim 4, wherein the flow control valve is configured to stay at the second position till the outlet of the fluid filling device is configured with the container.
6. The fluid filling device as claimed in claim 1, wherein the fluid filling device is coupled with the pressure fluid source through an interlock.
7. The fluid filling device as claimed in claim 6, wherein the interlock allows cutting off the fluid supply into the container from the pressure fluid source and then the fluid filling device is decoupled from the container.