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US2628296A
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Flow switch
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US2566173A
|
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Pilot operated valve
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US2591581A
|
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Trip and reset mechanism for float operated liquid fuel controlling valves
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US2589063A
|
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Thermostatic switch
|
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US2548878A
|
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Thermostatic valve having sealing diaphragm and supporting means therefor
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US2558938A
|
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Heat pump and control means
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US2594393A
|
|
Pressure limiting means for liquid charged refrigeration expansion valves
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US2577450A
|
|
Refrigeration expansion valve
|
|
US2598351A
|
|
Thermostatic valve
|
|
US2511565A
|
|
Refrigeration expansion valve
|
|
US2536791A
|
|
Liquid feed dividing means
|
|
US2538861A
|
|
Refrigeration expansion valve
|
|
US2564421A
|
|
Flow control valve for refrigeration systems
|
|
US2548877A
|
|
Automatically operable snap-acting switch
|
|
US2558930A
|
|
Thermostatic expansion valve having pressure responsive means for varying the superheat setting thereof
|
|
US2615671A
|
|
Metering valve
|
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US2564438A
|
|
Metering valve and control means therefor
|
|
US2534251A
|
|
Automatic valve
|
|
US2481183A
|
|
Pump priming means
|
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US2508224A
|
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Flow restricting device
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