US3703615A

US3703615A - Cable connector and switch

Info

Publication number: US3703615A
Application number: US151751A
Authority: US
Inventors: Kuno J Vogt
Original assignee: Individual
Current assignee: Individual
Priority date: 1971-06-10
Filing date: 1971-06-10
Publication date: 1972-11-21
Anticipated expiration: 1989-11-21

Abstract

A cable connector and switch for connecting the ends of two round cables as a rotary switch in which identical halves comprising threaded body portions with mating threaded caps are provided with rigid conductors terminating at their outer ends in a point for insertion into the conductive portion of cables and making contact with the insulated conductors within cables. The caps are threadably engaged with the connector portions forcibly contracting restraining fingers onto the cables being connected. The switch halves terminate in mating protuberances and recesses comprising the switch connectors, a portion of the recess being conductively coated for making electrical contact at one extreme of rotation and breaking electrical contact at the other extreme of rotation.

Description

1451 Nov. 21, 1972 Primary Examiner--David Smith, Jr. Attorney-Richard K. MacNeill [57] ABSTRACT A cable connector and switch for connecting the ends of two round cables as a rotary switch in which identical halves comprising threaded body portions with mating threaded caps are provided with rigid conductors terminating at their outer ends in a point for insertion into the conductive portion of cables and making contact with the insulated conductors within cables. The caps are threadably engaged with the connector portions forcibly contracting restraining fingers onto the cables being connected. The switch halves terminate in mating protuberances and recesses comprising the switch connectors, a portion of the recess being conductively coated for making electrical contact at one extreme of rotation and breaking electrical contact at the other extreme of rotation.

5 Claims, 11 Drawing Figures Kuno J. Vogt, 5854 Kantor Court, San Diego, Calif. 92122 June 10, 1971 Appl. No.: 151,751

US. Cl.....,..-.....................200/5l.07, ZOO/51.08 .HOlv 33/30 8 PB, 339/8 P, 177 M; ZOO/51.07, 51.08

References Cited UNITED STATES PATENTS 4/1959 Archer et a1.................339/48 1/1971 Ondrejka ..............339/l86 M 5/1971 Frey et al. .............339/l77 M 7/1929 Baldwin..................'.339/8 PB 2/1935 Ice..........................200/51.07 4/1966 Silver.........................339/8P United States Patent Vogt [54] CABLE CONNECTOR AND SWITCH [72] Inventor:

[22] Filed:

51 [58] Field of Search..339l47 R, 48, 49, 186 M,

PAIENTEDnnvzn m2 SHEET 1 [IF 2 FIG? KUNO J. VOGT INVENTOR.

FIG.4

PATENTED "M21 1912 SHEEI 2 OF 2 KUNO J. VO GT INVENTOR.

CABLE CONNECTOR AND SWITCH BRIEF DESCRIPTION OF THE INVENTION The present invention relates to an electrical cable connector and switch and more particularly to an electrical cable connector and switch which can be coupled in the line of any insulated cable without removal of any insulation therefrom.

According to the invention, an electrical cable connector and switch is provided which, in the case of a two-conductor cable, has a pair of conductive prongs extending from each end thereof. The cable is cut with the insulation and conductors extending to the edge thereof resulting in a termination plane or surface. The prongs are then inserted into the conductors within the cable and the ends of the cable pushed into each mating half of the switch and connective device. Each half contains a threaded cap which is first placed over the end of the cable to be connected and then, after the insertion of the conductive prongs, threadably engaged with matching sections of the connective switch portions. As the. cap is tightened, fingers of a restraining insert are constricted to mechanically contact and retain the ends of the cable. The two mating halves of the connective switch are then in electrical and mechanical contact with the ends of the cable being connected as a switch. Each of the mating halves of the switch contain an arcuate recess for the reception of a protuberance which is conductively coupled to one of the conductors. The bottom of the recess has a conductive portion which effects a contact with the. protuberance when the mating halves are rotated to one extreme with respect to each other, and will effect an open circuit when rotated to an extreme .in the opposite direction with respect to each other. A connecting link in the center of the two halves rotatably couples the two halves together in a press fit. Hence, an electrical connector and switch is provided which can be effectively utilized with a variety of cable sizes and shapes and requires no removal or insulation from the cable to be connected, as well as no soldering.

An object of the present invention is the provision of an improved electrical cable switch and connector.

Another object of the invention is the provision of an electrical cable switch and connector which does not I utilize solder.

A further object of the invention is the provision of an electrical cable switch and connector which requires no removal of insulation.

Still another object of the invention is the provision of an electrical cable switch and connector which can be utilized with a variety of sizes and shape of electrical cable.

A still further object of the invention is the provision of an electrical switch and connector which is inexpensive to manufacture and extremely convenient in use.

Other objects and many of the attendant advantages of this invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings in which like reference numerals designate likeparts throughout the figures thereof and wherein:

FIG. 1 is an exploded view of the preferred embodiment of the present invention;

FIG. 2 is a perspective view partially connected of the embodiment of FIG. 1; i

: FIG. 3 is a perspective view of the assembled embodiment of FIG. 1;

FIG. 4 is a side elevation in section of the embodiment of FIG. 1;

FIG. 5 illustrates the connective portion of the embodiment of FIG: 1 appliedto a round electrical cable; FIG. 6 illustrates the connective portion of the embodiment of FIG. 1 as applied to a flat electrical cable;

FIG. 7 illustrates in perspective a restraining insert of the preferred embodiment of the present invention;

FIG. 8 illustrates in a perspective exploded view the switch portions of the embodiment of FIG. 1 in one position;

FIG. 9 illustrates in perspective the switch portion of the embodiment of FIG. 1 in another position;

FIG. 10 illustrates a switch portion of the embodiment of FIG. 1 in detail; and

FIG. 11 is a schematic representation showing the switch portion of the embodiment of FIG. 1 in various positions.

DETAILED DESCRIPTION OF THE DRAWING Referring to FIGS. 1, 2 and 3, the preferred embodiment of the invention is shown generally at 11 in various stages of connection. The switch connector 1 1 consists of

identical parts

12 and 13 which are threadably engaged with

caps

19 and 21, respectively, around

cables

22 and 23. Prongs 14 and 16 and 17 and 18 fit into the conductors of

cables

22 and 23, respectively, making electrical connection therewith.

Referring to FIG. 4, a sectional view of the upper portion of the connector 11 is shown with

mating halves

12 and 13 and

conductor prongs

14 and 16, and 17 and 18, emerging from

parts

12 and 13, respectively. A connecting link 24 is shown pressfit within mating cavities of

parts

12 and 13,

rotatably coupling parts

12 and 13 together. Any suitable type of linkage can be utilized. Restraining insert 26 is shown within cap 19. Protuberance 27 is received by arcuate cavity 28. Protuberance 27 contains prong 14 which terminates in a conductive coating at 29 cooperating with conductive coating 31 at the bottom of cavity 38. Conductive prong I7 is electrically connected to coating 31. Protuberance 33 containing conductive prong 18 is received by arcuate cavity 32, terminating in a conductive portion coating 34 which communicates with conductive prong 36. Conductive prong 18 terminates in a conductive coating 36, conical recesses 35 increase at leakage paths between

prongs

14 and 16 and prongs l7 and 18. The conical shape also provides for an abutting release with any size cable.

Referring to FIG. 5, the upper portion 12 of connector 11 is shown with a round cable 22 inserted within cap 19.

Prongs

14 and 16 are in communication with

conductors

37 and 38 of cable 22. Restraining insert 26 is shown constricted toward cable 22 and making an indentation therein for mechanically restraining cable 22 within cap 19.

Referring to FIG. 6, the upper half 12 of the invention is again shown with a flat cable 39 being received by cap 19 and having a conductor 41 which is in contact with prong 14. Here it can be seen that restraining insert 26 is further forced by cap 19 into flat cable 39.

Referring to FIG. 7, restraining insert 26 is shown having a ring 42 with

construction fingers

43, 44 and 46 extending therefrom.

Referring to FIGS. 8 and 9, exploded views of one of the contacts are shown in a closed position (FIG. 8) and in an open position (FIG. 9). Extension 27 of upper member 12 terminates in a conductive coating 29 and has a slotted extension 30 on one edge thereof. Arcuate cavity 28 terminates in a conductive coating 32 on one end thereof. Protuberance 33 from member 13 terminates in a conductive coating at 36 and has a slotted extension 35 on one edge thereof. Cavity 32 of member 12 terminates in a conductive portion 34 at one end thereof.

Referring to FIG. 10, a detail of the connective portion is shown with conductive portion 31 in cavity 28 and conductive portion 29 of protuberance 27 being in an open position, i.e., the position indicated by FIG. 8. A snap extension 47 cooperates with portion 30 of protuberance 27 to insure a fully opened or closed position of the switch.

Referring to FIG. 11, a schematic diagram is shown indicating protuberance 37 with portion 30 in between the closed and open position. Moving toward the top of the diagram in dotted lines, protuberance 27 is shown as protuberance 27A indicating a conductive connection with conductive coating 31 in cavity 28. At the lower portion of the figure protuberance 27 is shown in dotted lines as 278 indicating the open position of the switch.

INSTALLATION AND OPERATION Referring now to all the figures, it can be seen that once the parts 1 l and 12 are assembled and it is desired to place them in a series with a two-conductor electrical cable, it is merely necessary to cut the cable at the desired location of the switch and connector, exposing two flat ends as shown in FIG. 2.

Caps

19 and 21 are then slipped over each exposed end and the prongs inserted into the exposed conductors in the two ends of the cables.

Caps

19 and 21 are then threadably engaged with parts 11 and 12 until restraining inserts 26 have effected a closure around the two ends of the cables, securing them mechanically. At this point the installation is complete and

portions

12 and 13 can be rotated with respect to one another to effect an opening or closing of electrical contact in both conductors of the severed cable.

It should be understood, of course, that the foregoing disclosure relates to only a preferred embodiment of the invention and that it is intended to cover all changes and modifications of the example of the invention herein chosen for the purposes of the disclosure which do not constitute departures from the spirit and scope of the invention.

What is claimed is:

l. A cable connector and switch connecting the ends of two electrical cables comprising:

first and second identical body portions having first and second conductive prongs imbedded therein;

a recess in an opposite end of each of said first and second body portions;

a protuberance in each of said opposite ends, said recesses being dimensioned for receiving said protuberances and arcuate in shape for allowing said first and second body portions to be rotated with respect to each other; a conductive coating on the end of said protuberances; and

a conductive coating on a portion of said recesses.

2. A cable connector and switch of claim 1 wherein:

said prongs extending beyond one end of each of said first and second body portions for insertion into conductors of a cable to be connected.

3. The cable connector and switch of claim 2 wherein:

said prongs extend from conical cavities.

4. The cable connector and switch of claim 1 and further including:

a snap extension disposed on the bottom of said cavities for restraining said protuberances at each extreme of rotation.

5. The cable connector and switch of claim 1 and further including:

first and second caps threadably engaged with said first and second body portions; and

restraining inserts disposed within said first and second restraining inserts having constriction fingers for restraining contact with an end of a cable to be connected.

Claims

1. A cable connector and switch connecting the ends of two electrical cables comprising: first and second identical body portions having first and second conductive prongs imbedded therein; a recess in an opposite end of each of said first and second body portions; a protuberance in each of said opposite ends, said recesses being dimensioned for receiving said protuberances and arcuate in shape for allowing said first and second body portions to be rotated with respect to each other; a conductive coating on the end of said protuberances; and a conductive coating on a portion of said recesses.

2. A cable connector and switch of claim 1 wherein: said prongs extending beyond one end of each of said first and second body portions for insertion into conductors of a cable to be connected.

3. The cable connector and switch of claim 2 wherein: said prongs extend from conical cavities.

4. The cable connector and switch of claim 1 and further including: a snap extension disposed on the bottom of said cavities for restraining said protuberances at each extreme of rotation.