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US 4,061,265 AGranted
Pressure and temperature responsive valve assembly
AssigneeAisin Seiki Kabushiki Kaisha
InventorKazuhiko Kitamura
Life of this patent
Estimating the term…
Abstract
A pressure and temperature responsive valve assembly comprises a single valve housing within which are disposed a first valve operable in response to the pressure difference and a second valve operable in response to the changes in temperature surrounding the housing; said two valves being operable independently of each other.
Claims5
A pressure and temperature responsive valve assembly comprising:
- a housing;
- piston means movably disposed within said housing and dividing the housing into first and second compartments, first port means adapted to connect said first compartment with a first pressure source and second port means adapted to connect said second compartment with a second pressure source;
- said piston means being movable between first and second positions due to the pressure difference established between said two compartments;
- third port means adapted to connect said second compartment with a fluid actuated device, fluid communication between said second compartment and said fluid actuated device being controlled by the movement of said piston means;
- and
- bimetallic snap valve means carried by said piston means and operable for controlling the communication between said second compartment and said fluid actuated device in response to changes in the temperature surrounding said housing.
3 more elements
Dependencies are inferred from the claim text.