Cable connector

• US 4,253,721 A
• Filed: 09/24/1979
• Issued: 03/03/1981
• Est. Priority Date: 09/24/1979
• Status: Expired due to Term

• Current Assignee: John G. Kaufman
• Original Assignee: John G. Kaufman
• Inventors: Kaufman, John G.
• Primary Examiner(s): McQuade, John
• Application Number:
  US06/077,953
• Time in Patent Office: 526 Days
• Field of Search: 339/75 R, 339/91 R, 128/798
• US Class Current: 439/372
• CPC Class Codes: A61B 18/08 by means of electrically-heated probes
• CPC Class Codes: A61B 18/16 Indifferent or passive electrodes for grounding
• CPC Class Codes: A61B 5/273 Connection of cords, cables or leads to electrodes
• CPC Class Codes: A61B 5/274 using snap or button fasteners
• CPC Class Codes: H01R 13/504 different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
• CPC Class Codes: H01R 13/62 Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
• CPC Class Codes: H01R 4/64 Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
• CPC Class Codes: Y10S 439/909 Medical use or attached to human body

Abstract

A cable connector particularly adapted for attachment to the end of a cable and releasable attachment to a stud fastener such as commonly provided on an electrosurgical electrode, comprises a body portion having a groove therein along which the head of the stud fastener can slide to a contact location defined by a blind end of the slot. Resilient metal contacts are provided within the body of the connector, to form a resilient electrical contact with the head of the terminal at such location. A hinged locking lever is provided, which hinges into a locking position, in which a protruberance extending downwardly from the locking lever engages behind the head of the stud terminal and prevents its withdrawal from the contact location along the slot. The dimensions of the slot prevent withdrawal of terminal in any other direction. The locking lever also has an engaging proturberance which releasably engages a formation on the end of the body, to hold the locking lever in its locked position. The body is made of ultrasound weldable plastic material, from three assemblable plastic parts, each of which individually is a simple plastic molding.

Claims

1. A cable connector for releasably connecting a cable to a protruding stud terminal, said connector having:

a generally flat body;

a terminal head-receiving slot in the flat body having an open end to permit entry of the stud terminal head in the longitudinal direction of the slot, and a closed end defining a terminal head locating portion of said slot;

the width of said slot at least in the terminal head locating portion thereof, being arranged to prevent withdrawal of the terminal therefrom in a direction other than longitudinally of the slot;

electrical contact means within the body of the cable connector and positioned to make electrical contact with the terminal head disposed in the terminal head locating portion of said slot;

a locking lever movable relative to the body between a locking position and an unlocking position;

a terminal locking formation extending downwardly from said locking lever and protruding into said slot, when the lever is in its locking position, to prevent removal of a terminal head from the terminal head locating portion in the longitudinal direction of the slot and to maintain said terminal head in electrical contact with said electrical contact means;

the locking formation being removed from the slot when the locking lever is in its unlocking position.

2. The cable connector of claim 1 wherein said locking lever is hingedly connected to the body of the connector, at a first end of the body adjacent to the open end of said slot, and lies along the length of the slot when in its locking position.

3. The cable connector of claim 2 wherein the locking lever has a length exceeding that of the body so as to protrude beyond the second end of the body when in its locking position, said lever having an engaging protruberance extending downwardly therefrom and adapted to engage the body of the connector when in the locking position, so as to hold the locking lever in its engaged position.

4. The cable connector of claim 3 wherein the engaging protruberance of said locking lever is located adjacent its end remote from its hinged connection, and the body is provided with a complementary engaging formation on the edge of its second end, to engage the engaging protruberance on the locking lever when the locking lever is in its locking position.

5. The cable connector of claim 4 wherein the electrical contact means comprises a pair of spring metal contacts, one on each side of the terminal head locating portion of said slot, and resiliently protruding into said slot.

6. The cable connector of claim 5 wherein the electrical contact means are electrically connected to a cable within the body of the connector, said cable protruding from the second end of said body.

7. The cable connector of claim 3 wherein the locking protruberance extending downwardly from said locking lever comprises a lower inclined bottom surface sloping downwardly in the direction away from the hinge connection, and a shoulder presented towards the closed end of the slot, at the termination of said inclined bottom surface.