Electrically controlled latch
US4390197A · kind A · utility
23Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1981 |
| Grant date | Jun 28, 1983 |
| Priority date | — |
| Expiry date | Sep 28, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1021
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A latch is provided with a rotary solenoid having an eccentrically mounted drive pin for driving a latch hub dogging means. The solenoid assembly can be easily demounted, rotated 180.degree., and remounted in the latch housing so that the drive pin can be made to drive the dogging blade either in or out of the latch hub dogging slot, depending on its mounted position. By this structure, the electric control may be readily converted from "fail-lock" to "fail-unlock" or vice-versa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.