Lockset having electric means for disabling and enabling the outer handle
US5018375A · kind A · utility
69Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Sep 18, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1021
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Lockset has within its outer tubular spindle a radial dog which, depending on its position, couples or decouples the spindle and the outer handle. Dog is moved from one position to the other by pin on rotary motor shaft screwing in or out a spring encircling the shaft and attached to dog. Motor is in inner tubular spindle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.