US2054465A - Electrical connecter - Google Patents

Description

Sept. 15, 1936. c. OUELLET ELECTRICAL CONNECTER v Filed March 8, 1934 220 at zzef Patented Sept. 15, 1936 PATENT OFFICE ELECTRICAL CONNECTER Lo C. Ouellet, Edmu Canada, assignor of ndston, New Brunswick, twenty-five per cent to Dr. E. A. Martin, Edmundston, New Brunswick, Canada Application March 8,

1934, Serial No. 714,667

In Canada March 14, 1934 2 Claims.

The present invention relates to improvements in electrical connecter construction.

An object of the invention is to provide an easily connected two-part connecter for connecting electrical circuits.

A further object of the invention is the provision of an electrical connecter embodying two resiliently interlocking parts.

Another object of the invention is the provision of an electrical connecter which will afford efficient and positive electrical connection between contact elements.

A still further object of the invention is the provision of an electrical connecter of the above character which is relatively simple and durable in construction.

Other objects and advantages of the invention will become apparent as the description progresses.

In the accompanying drawing forming a part of this specification and in which like reference characters are employed to designate corresponding parts throughout the same:-

Figure l is a side elevational view of the connecter showing the parts in assembled interlocking relation,

Figure 2 is a similar view showing the two elements in separated relation,

Figure 3 is a longitudinal section through the connecter elements in separated relation,

Figure 4 is a similar view through the elements in connected relation,

Figure 5 is a transverse sectiontaken on the line 55 of Figure 1, and

Figure 6 is a side elevational view, partly in section, illustrating the connection of the connecter forming elements.

Referring to the drawing, wherein for the purpose of illustration is shown a preferred embodiment of the invention, the numeral III generally designates the female or receptacle element of the connecter and the numeral ll generally designates the male or plug element thereof.

The receptacle element Ill is preferably in the form of a round elongated body having an exterior taper intermediate the ends forming an enlarged end portion I2 and a reduced end portion I3. The receptacle body I0 is preferably to be formed of soft or resilient rubber and is formed interiorly to provide a tapered conical bore I4.

Adjacent the enlarged end I2, the interior bore of the bodyis formed with an mnular continuous groove I5.

Upon the reduced end I3 of the body is tightly fitted a contact shell I! formed of metal or other suitable conducting material covering the end portion ofthe body and provided with an annular flange I8 formed to provide exterior screw threads. The shell is formed with a central aperture I9 coinciding with the opening formed at the reduced end of the interior bore I4.

Within the body I II is mounted an arcuate contact piece 20 partially embedded in the wall of the body and partially projecting into the interior bore I4, said contact piece being-disposed in a circumferential position in the bore. A connecting wire 2| electrically connects the contact piece 20 with the flange I8 of the terminal shell l1.

The complementary male element II of the connecter mainly constitutes a tapered conical body having a relatively short round base portion 23 exteriorly screw threaded. In the end of the base portion 23 is formed an annular indentation 24 divided by a diametrically extending centrally disposed rib 25. In the enlarged end portion of the male or plug element II are formed a pair of interiorly threaded bores 26 adapted to receive therein a pair of binding screws 21. The binding screws 21 cooperate with conducting terminal plates 28 and 29 and are disposed to connect conductors 30 and 3| of an electric cable 32 therewith.

On the reduced end or tip of the conical plug element I I is secured a contact cap 34 electrically connected with the terminal of the plate 28 through the medium of a conducting wire 35 extending longitudinally through a bore in the plug body. Upon the intermediate portion of the conical plug body is secured an annular contact ring-36 partially embedded in the plug and partially projecting radially outward thereof. As shown at Figure 4, the contact ring 36 is disposed on the plug in such position that when the connecter elements are assembled the exterior face of the ring will contact with the projecting face of the arcuate contact piece 20. The ring 36 is electrically connected with the terminal plate 29 by means of a conducting wire 31 extending longitudinally through a bore in the Y plug body.

Adjacent the enlarged base end the conical plug body is formed with an annular half-round ridge 38 adapted, when the elements In and II are interlocked, to resiliently engage the annular groove IS in the receptacle element.

The enlarged base end of the plug element II is normally covered by a flanged cover cap 40 tnreadedly mounted thereon and preferably formed of hard rubber or similar insulating material. The cover cap 40 is formed with a central flanged opening 4| through which the electrical cable 32 is extended.

To connect the receptacle and plug elements of the connecter, it is merely necessary to insert the plug within the bore of the receptacle, the resiliency of the receptacle body permitting the ridge 38 of the plug to be frictionally forced into engagement with the groove P5 in the receptacle to effect an interlocking engagement of the elements. When thus assembled, the cap 34 on the tip of the plug will project through the reduced opening in the shell covered end of the receptacle, as shown at Figure 4, so that both the terminal cap 34 and the shell I8 may contact with the electrical terminals in a threaded socket or the like. The terminal ring 36 on the plug makes a good positive contact with the arcuate receptacle contact piece 20, making connection between the conductors 30 and 3| of the cable with the contact cap 34 and the contact shell l1.

It will be readily apparent that this construction will greatly facilitate connection as well as disconnection of the elements and will enable assembly of the connecter with rapidity and ease.

It is to be understood that the form of my invention herein shown and described is to be taken as a preferred example of the same and that various changes as to the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim:

1. In an electrical connecter, a female element of resilient material having an outwardly diverging wall and being apertured at the small end,

said element having a circumferential channel near the larger end, a converging complementary male plug of rigid material adapted to enter the female element and extend through the small end, and a circumferential ridge on the male element adapted to engage the corresponding channel in the female element for interlocking purposes due to the inherent resiliency of said female element.

2. In an electric appliance of the character described, a resilient-material female element having a ferrule adapted to be electrically connected with one side of an electric line and provided with an inside circumferential channel, said element having an outwardly diverging wall and apertured at the smaller end of said wall, a converging complementary male plug of rigid material adapted to enter the female element, an

LEO c. OUELLET.

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