Temperature responsive vent damper
US4384671A · kind A · utility
7Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1981 |
| Grant date | May 24, 1983 |
| Priority date | — |
| Expiry date | Sep 8, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23L11/005
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heater vent having a temperature responsive damper such as a bimetallic element is disclosed. A shroud-like structure is positioned to cooperate with the temperature responsive element to close the vent at an elevated temperature and thereby reduce loss of residual heat while permitting the combustion gases to be completely purged from the firebox. For safety, movement of the temperature responsive element is uninhibited in all positions with complete vent closure occurring at ambient temperature and with the damper open during heater burner operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.