Powered opening module for a door closer
US11661786B2 · kind B2 · utility
4Cited by
21References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2021 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Jul 29, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A retrofit module configured for use with a door closer having a pinion. The retrofit module generally includes a case, an output shaft, a motor, and a control assembly. The output shaft is rotatably mounted in the case, and is configured for rotational coupling with the pinion. The motor is mounted to the case, and is operable to rotate the output shaft in a door-opening direction. The control assembly is mounted to the case, and is configured to operate the motor to drive the output shaft in the door-opening direction in response to an actuating signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.