Door actuator
US8938912B2 · kind B2 · utility
11Cited by
30References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Feb 9, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49716
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A power boost assembly is disclosed that can be used with a door actuator, such as a door closer. The power boost assembly is structured to store an energy during a first movement of a door and release the stored energy during a second movement of the door. In one form the power boost assembly can be structured as a module that can be added to an existing door and door closer installation. In one form the power boost assembly is used to increase a closing force imparted to a door to ensure a latching event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.