Geometrical instruments
Patent
1984-02-08
1985-07-30
McQuade, John
Geometrical instruments
339113R, 339DIG2, H01R 13623
Patent
active
045318018
ABSTRACT:
To insure proper alignment of a plug and receptacle connector so that only a correct plug and receptacle are being mated, a set of similarly coded keyways and keys on the connector parts require respective alignment before mating is possible. More particularly, the coupling ring and enclosed plug shell both have a set of keyways (optionally, keys) which must be respectively aligned before the receptacle can be received within the plug shell. A spring biased pawl within a slotted cavity in the coupling ring has parts which upon correct orientation of the ring and plug extend into a recess in the plug shell effectively locking the two together and preventing inadvertent rotation of the coupling ring with respect to the plug shell when the connector parts are unmated. In this way the keyways on the inner surfaces of the coupling ring and plug shell are maintained in properly aligned relation so that they may receive the receptacle. On initial mating of a receptacle within a coupling ring, the receptacle cams the pawl outwardly of the opening in the plug shell thereby now permitting rotation of the coupling ring with respect of the plug shell to complete connector engagement.
REFERENCES:
patent: 4066315 (1978-01-01), Arneson
patent: 4468077 (1984-08-01), Brush, Sr. et al.
Automation Industries, Inc.
Flattery Thomas L.
McQuade John
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