Power boost module for a door closer
US10844644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2018 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Apr 10, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/116
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus according to one embodiment includes a door closer having a pinion adapted to be operably coupled to a door and rotate in a first direction in response to opening the door and to rotate in a second direction in response to closing the door, and a power boost module operably coupled to the pinion. The power boost module includes a motor adapted to generate electrical energy via rotational movement of the pinion and supply a boost force to the pinion to assist closing the door, a gearing operably coupled to the pinion and the motor and structured to back drive the motor to generate the electrical energy in response to rotation of the pinion, and an energy storage device adapted to store the electrical energy generated by the motor and supply stored electrical energy to the motor for the boost force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.