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Class Information
Number: 236/58
Name: Automatic temperature and humidity regulation > Traps > Thermostatic > Expanding fluid > Wafer type
Description: Devices in which the drain-valve is operated directly by an expanding-fluid thermostat of the wafer type.










Patents under this class:

Patent Number Title Of Patent Date Issued
6220519 Sanitary steam trap Apr. 24, 2001
6148845 Valve housing with a connecting part and a cap Nov. 21, 2000
5884654 Condensate discharge device Mar. 23, 1999
5833135 Thermally-actuated steam trap Nov. 10, 1998
5546976 Condensate trap installations Aug. 20, 1996
5478012 Thermally-actuated steam trap Dec. 26, 1995
5405078 Thermally-actuated steam trap Apr. 11, 1995
5316213 Condensate trap May. 31, 1994
5275334 Thermally-actuated steam trap Jan. 4, 1994
5197669 Thermally-actuated steam trap Mar. 30, 1993
4995553 Thermally controlled valve Feb. 26, 1991
4955536 Thermally controlled valve Sep. 11, 1990
4781325 Thermostatic valve with trap repair cartridge Nov. 1, 1988
4634048 Low-profile encapsulated diaphragm valve for the thermal control of condensate water drainage Jan. 6, 1987
4616778 Thermostatic steam trap Oct. 14, 1986
4560105 Bellows-actuated thermostatic steam traps Dec. 24, 1985
4549691 Dual mode bellows-actuated thermostatic steam trap Oct. 29, 1985
4356964 Thermic control element Nov. 2, 1982
4248376 Thermally-controlled valve Feb. 3, 1981
4244518 Thermally-controlled valve Jan. 13, 1981
4226362 High pressure steam trap Oct. 7, 1980
4023730 Steam trap May. 17, 1977











 
 
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