Door closer with hold open feature
US4357731A · kind A · utility
8Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1980 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Jan 17, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A dashpot type door closer having an internal mechanism which will latch the door in an open position when the door is opened a sufficient distance, and which will release the door from a latched open position when the door is moved slightly more in the opening direction. A piston rod having a latching member extends through the internal mechanism and the latching member is pivoted between latched and unlatched positions by the internal mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.