Door hold open device
US4751766A · kind A · utility
13Cited by
3References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 13, 1986 |
| Grant date | Jun 21, 1988 |
| Priority date | — |
| Expiry date | May 13, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05C17/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hold open device a hinged door which is connected to a door frame by a pivot arm. The arm includes a follower which rides in an upper channel of the door. The hold open device includes a detent positioned between a cam part and a shock absorber and stop which secures the arm follower when the door is in its open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.