Filter device with non-bypass edge seal

Details Filter device with non-bypass edge seal Filter device with non-bypass edge seal

1989-09-15

1990-10-23

Hoag, Willard

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Dividing work to form plural articles

29447, 55523, 264230, 264249, 264257, B29D 900

Patent

active

049650327

ABSTRACT:
A process for making filters with a non-bypassing peripheral seal which comprises heating a cylindrical filter housing to expand its internal diameter; inserting a filter disc that has a diameter larger than that of the internal diameter of the housing when cold; and allowing the assembly to cool.

REFERENCES:
patent: 2541838 (1951-02-01), Shardlow
patent: 2821261 (1958-01-01), Vixler et al.
patent: 3397871 (1968-08-01), Hasselberg
patent: 3935111 (1976-01-01), Bentley
patent: 4115277 (1978-09-01), Swank
patent: 4116845 (1978-09-01), Swank
patent: 4157967 (1979-06-01), Meyst et al.
patent: 4294599 (1981-10-01), Grovesteen et al.
patent: 4759110 (1988-07-01), Rieger et al.
patent: 4904285 (1990-02-01), Yamada et al.
patent: 4907330 (1990-03-01), Akao et al.

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