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Class Information
Number: 236/25A
Name: Automatic temperature and humidity regulation > Closed fluid heaters > Flow controlled > Flow responsive valve controlling fuel
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6886756 |
Method and apparatus for controlling and providing electrical connections for a boiler |
May. 3, 2005 |
| 6648235 |
Control method of thermostatic system |
Nov. 18, 2003 |
| 5946926 |
Variable flow chilled fluid cooling system |
Sep. 7, 1999 |
| 5092519 |
Control system for water heaters |
Mar. 3, 1992 |
| 5039007 |
Water and air heating system |
Aug. 13, 1991 |
| 4738395 |
Fluid flow rate detector and system |
Apr. 19, 1988 |
| 4678116 |
Water heater |
Jul. 7, 1987 |
| 4627416 |
Water heater |
Dec. 9, 1986 |
| 4556168 |
Rapid response water heating and delivery system |
Dec. 3, 1985 |
| 4549525 |
Oil and gas water heater |
Oct. 29, 1985 |
| 4505253 |
Water heater |
Mar. 19, 1985 |
| 4497434 |
Detector of the flowing of a fluid in a pipe and energy saving device for a hot water system using this detector |
Feb. 5, 1985 |
| 4431132 |
Control valve systems for gas water heaters |
Feb. 14, 1984 |
| 4385724 |
Apparatus for controlling the water temperature of a spa |
May. 31, 1983 |
| 4171771 |
Central heating systems |
Oct. 23, 1979 |
| 4147159 |
Temperature controlled instantaneous water heating apparatus |
Apr. 3, 1979 |
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