FIELD OF THE INVENTION
The present invention relates to an electrical extension port assembly, and more particularly to a flexible extension cord assembly having two layers of sheets, between which sockets/ports are provided. Because of sheet based exteriors, weight of the assembly becomes very light and also the provision of folding when extension cord assembly not in use makes the product extremely portable in size, which makes it pretty suitable for the user to carry it along with your electronic gadgets like laptops, mobile chargers etc.
BACKGROUND AND PRIOR ART OF INVENTION
It is known that extension cord and port unit assembly is provided, wherein the multiple socket panels are placed for working of various electrical appliances simultaneously. In reference to FIG 1, a general conventional extension cord assembly is constructed by a housing (56) with a top plate and a bottom plate. On the top plate, multiple pairs of first holes (57) and multiple second holes (58) are defined, wherein each second hole (58) corresponds to a pair of the first holes (57) to form a complete socket. At the bottom plate, an extension cord (not shown) is provided for connection to a power source. In the above explained extension cord unit assembly, housing is normally made up of some highly crosslinked polymers or some metallic housing is used, which makes overall assembly very heavy in weight. Also assembly is fixed in its size whether in use or not and hence it becomes very bulky to carry it along with gadgets. Sparking or spikes while putting the plug is a common phenomenon in such type of a design as sockets are very rigidly fixed in the housing and hence they do not conform according to the size, shape and clearances of plug bars.
Therefore, the inventors of the proposed invention providing a solution which will overcome the above- mentioned shortcomings. The inventors are providing a flexible sheet based electrical cord and port unit assembly to mitigate the aforementioned problems.
OBJECTIVES OF THE INVENTION
The primary objective main object of the present invention is to provide to an electrical extension
port assembly.
Another objective of the present invention is to provide a flexible sheet based electrical port
assembly.
Yet another objective of the present invention is to provide a flexible sheet based electrical port
assembly which is light weight, foldable and portable.
SUMMARY OF THE INVENTION
The present invention relates to an electrical extension port assembly, wherein a flexible sheet based electrical port assembly comprises al least two layers of sheets which is made of a textile based material or some polymeric sheet. These sheets have been provided with biased longitudinal rigidity by stitching wires with high memory properties in that direction so if someone bend sheet along that direction then sheet will stay in that conformation and will not have the tendency to move back. Whereas no such property has been provided in the transverse direction so that sheet can be folded in that direction without any resistance.
Electrical sockets have been placed in between the above mentioned two sheets. Primary power output sockets have been inserted in the front whereas sockets for earthing have been provided at the back. When user will have to put in the equipment plug then he will have to fold the assembly towards front so that all the earthing sockets will come above the primary sockets and hence plug can be inserted. Above discussed memory based wire will give the stability to sheet and will prevent back falling of earthing sockets.
When the flexible sheet based electrical port assembly will not be in use, it can be folded in the transverse direction where there are no memory wires and hence no resistance to folding. By doing so, overall width of the port assembly reduces considerably. Also as the material existing between two primary sockets is textile based which is flexible in nature and hence sockets can confirm well to the shape, size and clearances of the plug bars and hence reduce problems of spikes and sparks. Also as a safety measure, all the sockets and joints have been coated with a polymeric insulating waterproof material, hence whole of the circuitry do not make any contact with the sheets and hence leaves no possibility of leakage of current to sheets and also reduce other kinds of losses. Sheets used are a type of composite material having three layers where top and bottom layers are woven synthetic textile whereas middle layer is a thin polymeric waterproof layer. Here top and bottom layers provide flexibility to sheet where as middle layer has been incorporated for safety.
As the source of power supply to assembly, a detachable cord has been provided which can be connected when assembly has to be used and can be removed when extension cord assembly is not in use. This aspect further improves upon the portability of the product.
The features and structure of the present invention will be more clearly understood when taken in conjunction with the accompanying figures.
BRIEF DESCRIPTION OF FIGURES
Fig 1 shows the perspective view of a conventional electrical port assembly.
Fig 2 shows the perspective view of the flexible sheet based electrical port assembly in accordance
with the present invention, in its non working form.
Fig 3 shows the exploded perspective view of the polymeric sheets according to an
embodiment of the present invention.
Fig 4 shows the exploded perspective view of the two sheets, used as the exterior covering to
circuit according to an embodiment of the present invention.
Fig 5 shows the perspective view of the flexible sheet based electrical port assembly in its workable
form according to an embodiment of the present invention.
Figure 6 shows the perspective view of the plug which is to be used to connect power cord to power
source according to an embodiment of the present invention.
Figure 7 show the perspective view of the plug which is to be used to connect the flexible sheet
based electrical port assembly to power cord according to an embodiment of the present invention.
Figure 8 shows the perspective view of the flexible sheet based electrical port assembly in its folded,
non working portable form according to an embodiment of the present invention.
Figure 9(a) and 9(b) shows the front view and top view of the electrical socket according to an
embodiment of the present invention.
Figure 10 shows the plain top view of the port assembly, particularly giving details of the circuit
layout design.
DETAILED DESCRIPTION OF THE PRESENT INVENTION
While the invention is susceptible to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the drawings and will be described in detail below. It should be understood, however that it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the invention is to cover all modifications, equivalents, and alternative falling within the spirit and the scope of the invention as defined by the appended claims.
Before describing in detail embodiments it may be observed that the novelty and inventive step that are in accordance with the present invention resides in a flexible sheet based electrical port assembly. Accordingly, the drawings are showing only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.
The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non¬exclusive inclusion, such that a setup, device that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such setup or device. In other words, one or more elements in a system or apparatus proceeded by "comprises... a" does not, without more constraints, preclude the existence of other elements or additional elements in the system or apparatus. The following paragraphs explain present invention wherein a flexible sheet based electrical port assembly. The invention in respect of the same may be deduced accordingly.
Accordingly, the present invention provides an electrical extension port assembly, comprising a pair
of polymeric sheets is placed on top of each other in such a manner that one or more electric sockets
are inserted in between the said polymeric sheets,
the said polymeric sheet having at least four sides, two longitudinal side and two transverse sides and
the longitudinal side (1) having more number of sockets as compare to longitudinal side (2), the said
electric sockets are constructing one pair of socket,
the said polymeric sheets stitched with memory retention wires, and a switch to supply the power
transmission from electric extension cord to the said electric extension port.
In one aspect of the present invention, each polymeric sheet comprising three layers of sheets,
wherein upper and bottom layer is made of synthetic textile and middle layer is made of thin
polymeric waterproof sheet.
Another aspect of the present invention, wherein a pair of said polymeric sheets joined by adhesive
means or stitching or combination thereof.
Yet another aspect of the present invention, wherein the said polymeric sheets stitched with memory
retention wires in transverse direction.
Yet another aspect of the present invention, wherein said memory retention wires holds said port
assembly in folded form along its longitudinal direction.
Yet another aspect of the present invention, wherein said port assembly is foldable along transverse
direction.
Yet another aspect of the present invention, wherein said electric sockets having at least two
apertures, the said aperture having an inner conducting shell and an outer shell coated with polymeric
material.
Yet another aspect of the present invention, wherein the said electric sockets can be of any shape and
size.
Yet another aspect of the present invention wherein multiple pairs of said electric sockets and in
connection with electric switch.
Yet another aspect of the present invention, wherein the one part of electric socket is connected for
earthing.
Yet another aspect of the present invention, wherein the source of power supply, a detachable cord is
provided to connect the said port assembly to the main power source.
The present invention is described with reference to the figures and specific embodiments; this
description is not meant to be construed in a limiting sense. Various alternate embodiments of the
invention will become apparent to persons skilled in the art upon reference to the description of the
invention. It is therefore contemplated that such alternative embodiments form part of the present
invention.
The present invention provides an insulating flexible sheet based electrical port assembly which is light in weight, foldable along transverse direction when the said port assembly being not in uses, which makes the product extremely portable in size and also makes pretty suitable for the user to carry it along with various electronic gadgets. As the memory wires are provided, port assembly remains in folded form along longitudinal direction while working.
Referring to figure 2, an insulating flexible sheet based electrical port assembly (4) in accordance with the present invention comprises two sheets (5, 6) which can be some polymeric composites or some textile composite. As shown in figure 2, whole of the circuit and various components are sandwiched/placed between these two sheets (5, 6). For the joining of these two sheets (5, 6), some compatible adhesive can be used along with the stitching (7). Various circuit components are, indicator switch (8), main source input sockets (10, 11, 12, 13) for input power to circuit output sockets (14, 15, 16, 17) for output transmission of power and sockets to provide earthing connection (18,19,20,21).
Figure 3 shows sheets (5, 6) are composite of three layers (24, 25, 26) according to an embodiment of the present invention. As shown in the figure 3, above and bottom layer (24, 26) are woven synthetic textiles whereas middle layer (25) is a thin polymeric sheet. Here top and bottom layers (24, 26) provide good drape properties for folding whereas polymeric sheet (25) makes whole assembly waterproof and hence improves the safety aspect of the product.
Figure 4 shows modification of the sheets (5, 6) according to an embodiment of the present invention. As shown in figure 4, both the sheets (5, 6) are stitched (28, 30) with memory property based wires ( 27, 29) along their transverse direction (22, 23).
Figure 5 shows the port assembly (4) in folding position while it is in workable form according to an embodiment of the present invention. As shown in the figure 5, if user will fold the port assembly (4) from the form shown in figure 2, along the axis (9) towards the front then form shown in figure 5 can be achieved. In this form, user will have to plug in the plug bars (33, 34, 35) shown in figure 6 in the power socket of external power supply for power transmission to power cord (31) and then user will have to plug in the plug sockets (37, 38, 39, 40, 41, 42) shown in figure 7 in the main source input sockets (10, 11, 12, 13) of flexible sheet based electrical port assembly (4). Then on turning the indicator switch (8) to its ON state, flexible sheet based electrical port assembly (4) will turn ready for transmitting power to various electronic and electrical gadgets where user can plug these gadgets into the output sockets (14, 15, 16, 17, 20, 21). The flexible sheet based electrical port assembly (4) has to stay folded along longitudinal axis (9) while working, for this reason, on both the sheets (5, 6), memory property wires (27, 29) have been stitched (28, 30) (as shown in figure 4) to impart memory property to sheets while folding in that direction.
Figure 8 shows flexible sheet based electrical port assembly (4) in folded situation when being not in use according to an embodiment of the present invention. As shown in figure 6, the port assembly (4) can be folded along the transverse axes (22) and (23) of figure 2 when it is not working as no such memory property based wires (27, 29) have been inserted in transverse direction to facilitate easy folding along axes (22) and (23) and it can be clipped by a clip (43), to greatly reduce its width and to convert the overall assembly (4) into an extremely portable device.
Figure 9(a) and 9(b) shows the front and top view of output sockets (14, 15, 16, 17) respectively according to an embodiment of the present invention. As shown in the figure 9(a) socket (14, 15, 16, 17) comprises of an inner conducting shell (45) and an outer polymeric coating (44). Similarly as shown in figure 9(b), at the back of the sockets where wire (47) makes connection with the socket, a similar polymeric coating (46) has been done. This polymeric coating prevents the conducting part of the circuit from touching the fabric at any stage. This aspect separates out the circuitry from the outer covering and hence nullifies any chance of accident of getting shock for the user.
Sockets of the main source input (10, 11, 12, 13) (as shown in figure 2) to circuit have been designed differently to enhance the safety aspect of the present invention as in this form user will not be able to touch the exposed activated plug bars.
Figure 10 shows circuit layout design sandwiched between polymeric sheets. As shown in figure 10, indicator switch (8) basically bears three terminals (48, 49, 50). Power from the external source enters into the circuit through main source input sockets (10, 11, 12, 13) where (10) and (12) are just polymeric shells and power is transmitted through pins (12, 13). One connection goes from pin (11)
to terminal (53) and sockets (14, 16) directly whereas other connection goes through terminals (50) and (49) to sockets (15, 17).
The foregoing description of the preferred embodiments of the present invention is intended to be illustrative only and, under no circumstances, should the scope of the present invention be restricted by the description of the specific embodiment.
ADVANTGES OF THE INVENTION
1. The electrical port assembly of the present invention is foldable which can be folded, compacted and easy to carry along.
2. The material existing between two primary sockets is textile based which is flexible in nature.
3. Electrical sockets can confirm well to the shape, size and clearances of the plug bars due to flexibility provided between them.
4. Flexibility between two electrical sockets also reduces problems of spikes and sparks.
5. Whole of the circuitry placed within the sheets do not make any contact with the sheets.
6. Insulation of circuit leaves no possibility of leakage of current to sheets and also reduces other kinds of losses.
7. The flexible sheet based electrical port assembly of the present invention can stay in bended form without having tendency to fall back, with the help of highly memory property based wires.
8. A detachable cord is provided for power supply to the port assembly from main source.
9. Electrical sockets for main source input to circuit designed in a different way to enhance the safety aspect.
The advantage of the present invention is to provide a flexible sheet based electrical port assembly. The inventors have been working to develop the invention, so that advantage can be achieved in an economical, practical, and facile manner. While preferred aspects and example configurations have been shown and described, it is to be understood that various further modifications and additional configurations will be apparent to those skilled in the art. It is intended that the specific embodiments and configurations herein disclosed are illustrative of the preferred nature of the invention, and should not be interpreted as limitations on the scope of the invention.

WE CLAIM
1. An electrical extension port assembly, comprising a pair of polymeric sheets is placed on top
of each other in such a manner that one or more electric sockets are inserted in between the
said polymeric sheets,
the said polymeric sheet having at least four sides, two longitudinal side and two
transverse sides and the longitudinal side (1) having more number of sockets as
compare to longitudinal side (2), the said electric sockets are constructing one pair of
socket,
the said polymeric sheets stitched with memory retention wires, and a switch to
supply the power transmission from electric extension cord to the said electric
extension port.
2. The electrical extension port assembly as claimed in claim 1, wherein each polymeric sheet
comprising three layers of sheets, wherein upper and bottom layer is made of synthetic textile
and middle layer is made of thin polymeric waterproof sheet.
3. The electrical extension port assembly as claimed in claim 1, wherein a pair of said polymeric
sheets joined by adhesive means or stitching or combination thereof.
4. The electrical extension port assembly as claimed in claim 1, wherein the said polymeric
sheets stitched with memory retention wires in transverse direction.
5. The electrical extension port assembly as claimed in claim 1, wherein said memory retention
wires holds said port assembly in folded form along its longitudinal direction.
6. The electrical extension port assembly as claimed in claim 1, wherein said port assembly is
foldable along transverse direction.
7. The electrical extension port assembly as claimed in claim 1, wherein said electric sockets
having at least two apertures, the said aperture having an inner conducting shell and an outer
shell coated with polymeric material.
8. The electrical extension port assembly as claimed in claim 1, wherein multiple pairs of said
electric sockets and in connection with electric switch and the one part of electric socket is
connected for earthing.
9. The electrical extension port assembly as claimed in claim 1, wherein The electrical extension port assembly as claimed in claim 1, wherein the source of power supply, a detachable cord is provided to connect the said port assembly to the main power source.