Liquid purification or separation – With repair or assembling means – Hoist or handle means
Patent
1989-09-01
1991-03-19
Dawson, Robert A.
Liquid purification or separation
With repair or assembling means
Hoist or handle means
210444, 210DIG17, B01D 2708
Patent
active
050008471
ABSTRACT:
A spin-on type oil filter with an improvement to the normal filter body that allows non-tool assisted, easy hand installation and removal of the filter unit in open and close tolerance situations.
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patent: 3473666 (1969-10-01), Humbert
patent: 3722691 (1973-03-01), Francois
patent: 4364829 (1982-12-01), Atkins et al.
patent: 4416776 (1983-11-01), Brundidge
patent: 4741305 (1988-05-01), Moon
patent: 4871455 (1989-10-01), Terhune et al.
Dawson Robert A.
Savage Matthew O.
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