Multi-wire locking system

• US 5,823,833 A
• Filed: 08/15/1997
• Issued: 10/20/1998
• Est. Priority Date: 01/18/1994
• Status: Expired due to Term

• Current Assignee: Leviton Manufacturing Company Incorporated
• Original Assignee: Leviton Manufacturing Company Incorporated
• Inventors: Castaldo, Cosmo
• Primary Examiner(s): Paumen, Gary F.
• Assistant Examiner(s): TA, THO DAC
• Application Number:
  US08/911,880
• Time in Patent Office: 431 Days
• Field of Search: 439/851, 439/852, 439/853, 439/854, 439/856, 439/857, 439/842
• US Class Current: 439/851
• CPC Class Codes: H01R 13/111 co-operating with pins having a circular transverse section
• CPC Class Codes: H01R 13/648 Protective earth or shield arrangements on coupling devices , e.g. anti-static shielding coaxially arranged shields H01R24/38
• CPC Class Codes: H01R 13/652 with earth pin, blade or socket
• CPC Class Codes: H01R 24/00 Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure contact members H01R13/02; securing contact members in or to a base or case or insulating of contact members H01R13/40; bases or cases H01R13/46; means for supporting coupling part when not engaged H01R13/60; means for facilitating engagement or disengagement of coupling parts or for holding them in engagement H01R13/62; means for preventing, inhibiting or avoiding incorrect coupling H01R13/64
• CPC Class Codes: H01R 24/38 having concentrically or coaxially arranged contacts
• CPC Class Codes: H01R 24/86 Parallel contacts arranged about a common axis

Abstract

The present invention teaches a multi-wire locking system incorporating a novel and unique ground contact which is formed in a unitary manner in a single piece or element from a single piece of metal stock, without the need for machining or assembly. The subject ground contact is utilized within and the present invention contemplates a receptacle or connector assembly which performs in a superior manner when compared to the prior art.

Claims

1. A unitary one-piece ground contact for use as a component within an electrical connector, comprising, in combination:

a) a body formed from a single block, said body comprising;

b) a mounting tab portion formed with an opening therethrough;

c) a neck portion integral with said mounting tab portion;

d) a tube grip portion integral with said mounting tab portion via said neck portion;

e) a slot in said tube grip portion extending from a first, free end of said tube grip portion towards said neck portion providing a first gap;

f) said tube grip portion comprising;

g) two spring members formed in an arcuate configuration with their respective concave inner surfaces facing one another, said spring members being disposed so as to define a second gap between confronting, outer edges of said tube grip portion, and a receiving end flared to receive a ground pin of an electrical plug; and

h) self-centering means for aligning said contact within a bore in which said contact is disposed when in a functioning mode, said self-centering means comprising a plurality of protuberances formed as an integral part of said spring members for contacting the inner surfaces defining said bore.

2. The ground contact, as defined in claim 1, wherein said first gap is shorter than said second gap.

3. The ground contact, as defined in claim 1, wherein said first gap is shorter than a length of said tube grip portion measured along a longitudinal axis of said ground contact.

4. The ground contact, as defined in claim 1, wherein said receiving end of said two spring members comprising:

a) a first outwardly tapered portion;

b) a second inwardly tapered portion, coupled to said first outwardly tapered portion; and

c) a constant diameter portion coupled to said second inwardly tapered portion.