Motor-operated damper device
US6877716B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2003 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Jun 9, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2013/1446
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A motor-operated damper device includes a baffle driving device equipped with a motor, a baffle that is driven by the baffle driving device, a frame defining an opening section that is closed and opened by the baffle, the opening section having a peripheral edge section, and a buffer member that is attached to the baffle and that resiliently deforms and contacts the peripheral edge section of the opening section when the opening section is closed by the baffle. A detent torque of the motor is used to maintain a stopping state in which the buffer member is resiliently deformed to provide a close contact with the peripheral edge section of the opening section. The motor-operated damper device includes a stopper that allows an appropriate amount of elastic deformation of the buffer member and yet prevents the peripheral edge section of the opening section from excessively sinking into the buffer member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.