Swinging door operator
US11118392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2019 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Nov 24, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An automatic door operator operating on standard 120V/240V AC power utilizes a servomotor for operation, and thus no separate transformer is required for the operator. The servomotor incorporates programming to limit torque, and thus no slip clutch is required in order to allow manual operation of the door. Furthermore, because the servomotor has built-in control logic, no separate digital control logic is required. Because the position of the servomotor is continuously maintained, the relative position of the door with respect to a fully opened or fully closed position is always known, and no separate external signal is required in order to monitor the door position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.