Quiet panic device having sound dampening materials
US10907377B2 · kind B2 · utility
1Cited by
34References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2016 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Sep 22, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B65/1053
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A panic device for rapidly unlocking an entryway includes a touch bar handle configured for activating the panic device; and a push arm assembly mechanically connected to the touch bar handle, and configured for operating a latch mechanism connected to the push arm assembly via a plurality of linkages. Activation of the panic device, including depressing the touch bar handle, activating the push arm assembly, and the operation of the latch mechanism generates a noise reduction in the range of approximately 20-99 percent and at least 30 decibels during operation of the latch mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.