Plug and receptacle rejection apparatus

• US 4,752,245 A
• Filed: 05/12/1986
• Issued: 06/21/1988
• Est. Priority Date: 05/12/1986
• Status: Expired due to Term

• Current Assignee: Thomas & Betts International Incorporated (ABB Limited)
• Original Assignee: Amerace Corporation (ABB Limited)
• Inventors: Knecht, George W.
• Primary Examiner(s): Weidenfeld, Gil
• Assistant Examiner(s): Paumen, Gary F.
• Application Number:
  US06/862,292
• Time in Patent Office: 771 Days
• Field of Search: 439/677-679, 439/884, 439/894, 439/933, 439/680, 439/681, 439/695
• US Class Current: 439/677
• CPC Class Codes: H01R 13/642 by position or shape of contact members
• CPC Class Codes: Y10S 439/933 Special insulation

Abstract

A rejection apparatus adapted for selective installation in a female electrical socket to prevent mating of an incompatible male connector. The apparatus is formed of an elongated body of dielectric material and includes a segmented spherical head portion adjacent one end. The spherical head portion is designed to resiliently compress to allow insertion into a connector sleeve of the female socket. The head portion snaps outwardly into retaining engagement at an inner end or shoulder area in the sleeve. The spherical head portion also includes a shoulder which can engage an associated inner portion of the female socket to limit axial movement of the apparatus. When in position in the sleeve, the opposite end of the apparatus extends outward to function as a rejection element. The end is color coded to give a ready visual indication of the presence of a rejection apparatus in the sleeve. Also disclosed is an installation tool arranged to resiliently grasp the rejection apparatus for insertion into the connector sleeve.

Claims

1. A rejection apparatus adapted for preventing mating connection between a female socket and an associated non-compatible male plug set, the female socket including a contact sleeve axially disposed at a first predetermined dimension from a receiving face thereof, the male plug including a contact member extending outwardly from a first face thereof a second dimension substantially greater than said first dimension for receipt in said female contact sleeve, said rejection apparatus comprising:

an elongated dielectric body having a first end including retention means adapted for operative receipt in the associated female contact sleeve and a second end adapted for extension outwardly from the female contact sleeve; and

,

said body second end having blocking means for preventing mating connection of said female socket with a non-compatible male plug but allowing mating connection with a compatible male plug.

2. The rejection apparatus as defined in claim 1 wherein said retention means includes a resilient portion adapted for receipt in the female contact sleeve.

3. The rejection apparatus as defined in claim 1 wherein said retention means includes a shoulder adapted for operative engagement with the female contact sleeve.

4. The rejection apparatus as defined in claim 1 wherein said retention means further includes an arcuate surface adapted for engagement with an inner diameter of the female contact sleeve for promoting a reduction in cross-sectional dimension of said retention means.

5. The rejection apparatus as defined in claim 1 wherein said first end includes a spherically segmented portion and a shoulder adjacent thereto adapted for operative retaining engagement with the contact sleeve of said female socket.

6. The rejection apparatus as defined in claim 1 wherein said body first end has a normal, cross-sectional dimension greater than an inner dimension of the associated female contact sleeve.

7. The rejection apparatus as defined in claim 6 wherein said body first end includes means permitting it to resiliently deform to a compressed, cross-sectional dimension less than said normal cross-sectional dimension for sliding passage through the associated female contact sleeve.

8. The rejection apparatus as defined in claim 1 further comprising a surface portion for engaging a portion of the female socket and providing an axial limit for movement of said body into the contact sleeve.

9. The rejection apparatus as defined in claim 1 wherein said blocking means includes a predetermined configuration on said second end.

10. The rejection apparatus as defined in claim 1 further comprising means for providing ready visual indication of said body in the associated female socket.

11. The rejection apparatus as defined in claim 4 wherein said indication means includes a color coding on said second end.

12. In combination:

a female socket having an end face and a contact sleeve operatively communicating therewith, said contact sleeve including a first end having a retaining means thereon and a second end spaced inwardly from said end face; and

,

a dielectric rejection apparatus received in said contact sleeve, said rejection apparatus including a first end retainingly held in said contact sleeve and a second end extending outwardly therefrom to a position spaced intermediate said end face and said contact sleeve second end whereby said rejection apparatus second end inhibits mating connection between said female socket and an associated non-compatible male plug.

13. The combination as defined in claim 12 wherein said rejection apparatus includes blocking means adjacent said second end for preventing mating connection between said female socket and an associated non-compatible male plug.

14. The combination as defined in claim 13 wherein the blocking means is generally centrally aligned with said contact sleeve.

15. The combination as defined in claim 13 wherein said blocking means includes a pin member having a cross-sectional dimension substantially less than an inner diameter of the contact sleeve whereby said pin member and contact sleeve generally define an annulus therebetween.