Regulator for a damper assembly
US4176690A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1977 |
| Grant date | Dec 4, 1979 |
| Priority date | — |
| Expiry date | Dec 7, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7797
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A regulator for a damper assembly operable to control the flow of conditioned air through a supply duct. The regulator includes a pressure responsive member connected to the damper assembly to vary the position thereof within the supply duct in accordance with changes in the conditioned air supply pressure to maintain a substantially constant volume air flow downstream of the damper assembly irrespective of such changes. The regulator further includes control point setting means for obtaining the level of constant volume air flow including force generating elements acting in opposition to the pressure responsive member for providing a first force at a maximum level of constant volume air flow and for further providing a second force at lesser levels of constant volume air flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.