Locking plug and receptacle therefor
US3985415A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1975 |
| Grant date | Oct 12, 1976 |
| Priority date | — |
| Expiry date | Aug 25, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/627
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A locking electrical plug has a casing from which there extends at least one prong containing a longitudinal slot within which there is pivotally disposed a locking hook with a hook portion projecting laterally from the slot. A spring loaded release button projects from the casing and is connected to the rear portion of the locking hook. A receptacle for the plug contains an aperture to receive the at least one prong, the aperture including a lateral enlargement to receive the projecting hook portion when the prong is inserted therein thereby locking the plug to the receptacle. Depression of the release button pivots the locking hook retracting the hook portion to unlock the plug from the receptacle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.