Barometric relief air zone damper
US8956207B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2012 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Jul 31, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0352
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A zone damper having a first portion responsive to the static pressure in a HVAC system to open and bleed an amount of conditioned air past the damper when the static pressure of the system increases above a selected level, a second portion controlled by a actuator to move between an open and a closed position in response to a zone thermostat, and a coupling mechanism coupling the first and second portions to limit the relative movements of the two portions with respect to each other, and a biasing mechanism exerting a torque against the system static pressure differential. The first portion can be a single one-piece undivided blade pivotally mounted with a shell surrounding the zone damper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.