Automatic temperature and humidity regulation – Heating radiator – Thermostatic
Patent
1991-11-25
1992-09-01
Tapolcai, William E.
Automatic temperature and humidity regulation
Heating radiator
Thermostatic
236 99R, 285314, F24F 1106
Patent
active
051432862
ABSTRACT:
A thermostat top part is mounted to a valve housing for rotation relative thereto and is axially removably secured thereto. The thermostat top part has a retaining ring surrounding and rotatable relative to a hollow cylindrical base foot. A clamping element is mounted by the base foot for radial movement between a position abutting against a clamping face of the valve housing that is tapered axially toward the housing abutment face in a radial inward direction for retaining the top part on the valve housing and a radial outward position permitting the thermostat top part being axially removed from the valve housing. A torsion spring resiliently urges the retainer ring to rotate in a direction for moving the clamping element radially inwardly. A locking ring in the base foot is moved axially against spring action from a first axial position retaining the clamping element it is radial outer position as the base foot is pushed onto the valve housing axially toward the abutment face and is moved out of the path of movement of the clamping element prior to the base foot abutting against the abutment face.
REFERENCES:
patent: 3351359 (1967-11-01), Ferraris
patent: 3411813 (1968-11-01), Kreuz
patent: 3438574 (1969-04-01), Kilbar
patent: 4089461 (1978-05-01), Gocke
patent: 4176786 (1979-12-01), Braukmann
patent: 4232817 (1980-11-01), Braukmann et al.
patent: 4508262 (1985-04-01), Pederson et al.
patent: 4508263 (1985-04-01), Pederson et al.
patent: 4632437 (1986-12-01), Robson et al.
patent: 4739793 (1988-04-01), Vollmer
Frederiksen Bjarne
Hansen Henning B.
Lykkegaard Knud
Maroti Stefan P.
Danfoss A/S
Easton Wayne B.
Johnson Clayton R.
Tapolcai William E.
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