Liquid purification or separation – With alarm – indicator – register – recorder – signal or...
Patent
1980-08-14
1981-12-22
Adee, John
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
210149, 210168, B01B 2710, B01B 3506
Patent
active
043069665
ABSTRACT:
A heat responsive by-pass flow circuit for a fluid flow system passive element, such as the filter element normally connected in series from an inlet to an outlet. The filter element is provided with a head block or housing having a by-pass passageway between the filter element inlet and outlet, such by-pass passageway being normally closed by a spring loaded valve. A solenoid actuates the valve to open the by-pass passageway under the control of a heat controlled switch having a temperature sensitive element disposed in the flow of fluid at the inlet to the filter element. The heat temperature controlled switch is adjusted to open the by-pass at a pre-set temperature of the fluid flowing into the inlet to the filter element, such as to cause increased direct flow of fluid from a cooler to a working element of the system and back to the cooler, thus reducing overheating of the fluid due to slow fluid flow through the system caused by excessive pressure drop across the passive element.
REFERENCES:
patent: 2389595 (1943-11-01), Sharples
patent: 2529698 (1950-11-01), Julius
patent: 3127255 (1964-03-01), Winglow
patent: 3463729 (1969-08-01), Bean
patent: 3790931 (1974-02-01), Levearuy
patent: 4033870 (1977-07-01), Parquet
Adee John
Patalidis Claude A.
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