Hospital latch
US4007954A · kind A · utility
40Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1975 |
| Grant date | Feb 15, 1977 |
| Priority date | — |
| Expiry date | Nov 10, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/0971
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A latch bolt mechanism of the push-pull type which includes a stop lever maintained normally in an inactive position by means of a fusible pin, the lever being adapted to drop into a position where it blocks the movement of the latch-withdrawing mechanism when the pin melts at a predetermined temperature due to a fire condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.