Liquid purification or separation – With repair or assembling means
Patent
1998-12-21
2000-08-29
Lithgow, Thomas M.
Liquid purification or separation
With repair or assembling means
210440, 210444, 210450, 210DIG17, B01D 3530, B01D 3531
Patent
active
061103659
ABSTRACT:
A filter, in particular, a fluid filter of the "spin-on" type, comprising a head with an inlet space and an outlet space and with a coaxially extending connecting spigot, a housing with one open end, said housing containing an annular-cylindrical filter element and having a terminal edge that confines said open end and sealingly engages a groove provided in the body of said head and positioned coaxially around said connecting spigot, as well as an annular disc-shaped intermediate piece screwed onto said connecting spigot and supporting said filter element. An edge portion of said intermediate piece extending beyond said filter element is screwed into said housing and is provided with passage openings. Head, intermediate piece and filter housing are sealingly assembled with one single ring.
REFERENCES:
patent: 3067880 (1962-12-01), Bowers et al.
patent: 3411632 (1968-11-01), Offer et al.
patent: 3616933 (1971-11-01), Baldwin
patent: 4738776 (1988-04-01), Brown
patent: 5066391 (1991-11-01), Faria
patent: 5118417 (1992-06-01), Diebel
patent: 5342519 (1994-08-01), Friedmann et al.
patent: 5584987 (1996-12-01), Mules
Bartels Antonius Josephus
Vleemingh Geurt Jan Hendrik
Deveau Todd
Fairey Arlon B.V.
Lithgow Thomas M.
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