1980-11-28
1982-10-19
Desmond, Eugene F.
Geometrical instruments
339 89M, H01R 1358, H01R 1362
Patent
active
043547230
ABSTRACT:
An electric plug having a threaded top cap has an internal spring loaded ratchet pin extending into engagement with tapered teeth about the inside of the cap and a manual pin retracting element on the outside of the plug body for removably locking the cap on the body and a ring and prong retainer for an electrical cord extending through the cap into the plug body.
REFERENCES:
patent: 4053198 (1977-10-01), Doyle et al.
Desmond Eugene F.
Hendricson Alvin E.
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