Damper with adjustable resistance to blade motion
US10598404B2 · kind B2 · utility
0Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2017 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Jun 6, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2013/146
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A damper regulator for controlling the opening/closing characteristics of an HVAC damper has a swing arm coupled to the shaft on which the damper pivots. The swing arm has an arm carriage mounted to translate on the swing arm as the swing arm pivots, and a biasing spring connects the arm carriage to the damper regulator's housing, or to another suitable anchor. The translation of the arm carriage effectively adapts the characteristics of the biasing spring so that the damper need not be subjected to ever-increasing pressure to achieve greater airflow, or so that other damper opening characteristics can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.