Automatic temperature and humidity regulation – Traps – Thermostatic
Patent
1992-11-17
1994-01-04
Tapolcai, William E.
Automatic temperature and humidity regulation
Traps
Thermostatic
236 99J, F16T 110
Patent
active
052753344
ABSTRACT:
In order to open a valve member during the breakage of a temperature control element and to prevent the couterflow of fluid from an outlet side to an inlet side even when pressure at the outlet side becomes higher than that at the inlet side, there is provided a thermally-actuated steam trap comprising: a valve casing having an inlet, a valve chest and an outlet, a valve seat member having a discharge passage between the valve chest and the outlet, a temperature control element disposed in the valve chest and including a cover member, a first diaphragm, a second diaphramg and a valve member and containing expansible medium, and a through hole formed respectively on the second diagragm and the valve member attached thereto, through which a face of the first diaphragm being not in contact with the expansible medium communicates with the discharge passage.
REFERENCES:
patent: 3698633 (1972-10-01), Lingnau
patent: 4161278 (1979-07-01), Klann et al.
patent: 4244518 (1981-01-01), Foller
patent: 4248376 (1981-02-01), Foller
patent: 4634048 (1987-01-01), Hasse
patent: 4781325 (1988-11-01), Finders, Jr.
patent: 4955536 (1990-09-01), Foller et al.
European Patent Search Report, EP 92 10 4066, May 26, 1992.
Form PTO-892 (Rev. Mar. 1979) filed by Examiner on Jun. 11, 1992.
Tapolcai William E.
TLV Co. Ltd.
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