Liquid purification or separation – Flow – fluid pressure or material level – responsive – Fluid pressure responsive by-pass
Patent
1976-08-30
1977-08-16
Granger, Theodore A.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Fluid pressure responsive by-pass
210172, 210305, B01D 2710, E03B 1100
Patent
active
040425053
ABSTRACT:
The invention is concerned with an improvement in a hydraulic reservoir which comprises a tank having internally thereof filter means attached longitudinally between a first and a second generally parallel side thereof, said filter means including generally tubular filter element means extending generally longitudinally between said first and second sides of said tank and means for introducing a hydraulic fluid from an exterior of said tank to an interior of said element means from adjacent said first side of said tank. The improvement of the invention comprises a tube within said tank surrounding said element means and extending longitudinally generally the length thereof, said tube including exit means therethrough through which said hydraulic fluid passes after passage thereof from the interior to an exterior of said element means, a first end of said tube sealing adjacent said second side of said tank and a second end of said tube sealing adjacent said first side of said tank. Also a part of the improvement of the invention is baffle means within said tank arranged to receive generally all of said hydraulic fluid which passes through said exit means, said baffle means conducting said hydraulic fluid to below fluid level in said reservoir and having egress means therefrom wholly below said normal fluid level.
REFERENCES:
patent: 2220706 (1940-11-01), Cantin
patent: 3161589 (1964-12-01), Burckhaltzer
patent: 3214023 (1965-10-01), Donner
patent: 3269540 (1966-08-01), Rosaen
patent: 3295680 (1967-01-01), Wilber
patent: 3486622 (1969-12-01), Rosaen et al.
patent: 3928201 (1975-12-01), Junck et al.
patent: 3959141 (1976-05-01), Johnson
Caterpillar Tractor Co.
Granger Theodore A.
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