Damper control device
US6644957B2 · kind B2 · utility
17Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2002 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | May 1, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N3/042
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A device for controlling a damper in an appliance is disclosed comprising a motor having a rotatable shaft extending therefrom which is operatively connected to a plate of the damper, a control circuit which transmits current to the motor to rotate the shaft and in turn rotate the plate to a first position and to a second position, and a dynamic brake operatively connected to the motor, which acts to reduce rotation of the shaft when the circuit supplying current to the motor is opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.