Sliding lockout key

Details Sliding lockout key Sliding lockout key

2011-01-18

2011-01-18

Gilman, Alexander (Department: 2833)

Electrical connectors

With contact preventer or retractable cover part

Movably mounted

Reexamination Certificate

active

07871279

ABSTRACT:
Receptacles configured to securely mate with hazardous area plugs are provided. The receptacles include a housing, a locking plate, and a sliding lockout key. The sliding lockout key prevents the locking plate from rotating when the receptacle and plug are disconnected or when a standard plug is inserted into the receptacle. When the proper plug is inserted into the receptacle, the sliding key portion is depressed and allows rotation of the locking plate. Upon rotation, pins from the plug contact internal pins of the receptacle and make an electrical connection.

REFERENCES:
patent: 866105 (1907-09-01), Whittlesey
patent: 4970349 (1990-11-01), Jones
patent: 5066238 (1991-11-01), Shieh
patent: 5096432 (1992-03-01), Cullen et al.
patent: 6545218 (2003-04-01), Blaess
patent: 7080889 (2006-07-01), Ling et al.
Blaine R. Coperheaver, Search Report and Written Opinion of the International Searching Authority for PCT/US2008/085132, pp. 1-8.

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