Electric strike for fail safe or fail secure operation
US5490699A · kind A · utility
43Cited by
25References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 1994 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | May 2, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/699
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electrical release door strike comprising a carrier frame; a strike bolt carried by the frame for movement when released, allowing door opening, the bolt adapted to receive and resist door opening force prior to bolt movement; a solenoid carried by the frame to have either of two alternate positions relative to the frame; and structure operatively connected between the solenoid and bolt in either of the positions to cause the bolt to assume PA1 i) a fail safe condition when the solenoid is in one of the positions, PA1 ii) a fail secure condition when the solenoid is in the other of the positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.