Electric plug locking device
US5393237A · kind A · utility
17Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1993 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Sep 22, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/60
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric plug locking device (10), which remains affixed to an electric plug (13) for preventing unsupervised use of electrical equipment, has an upper housing member (11) movably mounted to a lower housing member (12). The upper housing member which has an opening (23) for receiving a plug terminal (15) moves from a position that shields the terminal to prevent it from being inserted into an electrical socket to a position that unshields the plug terminal to permit it to be inserted into the socket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.