Slam latch bolt dampener
US9290980B2 · kind B2 · utility
1Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2013 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Jan 14, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05F2005/046
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A slam latch mechanism employs an actuation lever rotatable from a first position to a second position and having a prong extending therefrom. A bolt, resiliently retractable from an extended position with the actuation lever in the first position, has a land with a slip surface engaging the prong in the second position to retract the bolt. A dampener extends from the slip surface by a margin to engage the prong in the first position to prevent metal to metal contact by the prong and slip surface with the actuation lever in the first position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.