Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1985-06-12
1986-02-11
Czaja, Donald
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264267, 264DIG48, B29C 3700
Patent
active
045698139
ABSTRACT:
A filter device includes an annular filter element having a plurality of wave portions extending outwardly, a central cup-shaped portion arranged at an inner periphery of the filter element, a support frame arranged at an outer periphery of the filter element, and a connecting portion at which both sides of the filter element are abutting on and connected with each other. The central portion, the support frame and the connecting portion are made of synthetic resin and formed as a unitary structure, wherein the outermost and innermost peripheral ends of the filter element are respectively embedded in and held by the support frame and the central portion.
REFERENCES:
patent: 3608007 (1971-09-01), Henrikson
patent: 4414172 (1983-11-01), Leason
patent: 4438057 (1984-03-01), Sundseth
Akado Hajime
Fukuta Toshiaki
Miyakawa Susumu
Nishio Yoshitaka
Taki Yoshihiro
Czaja Donald
Fertig Mary Lynn
Nippondenso Co. Ltd.
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