Forming an end-cap on a filter cartridge

Details Forming an end-cap on a filter cartridge Forming an end-cap on a filter cartridge

1987-04-21

1990-09-11

Fisher, Richard V.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

2104932, 2104935, 21050032, 156218, 264242, 264DIG48, 2643281, B01D 2708

Patent

active

049560891

ABSTRACT:
An end-cap for a filter cartridge is formed by melting the thermoplastic material of a supporting cage and of a support pleated together with the filter medium against a heated die and embedding the end of the filter medium in the material while it is molten. Extra thermoplastic material may be melted in the die. If all of the components of the cartridge are thermolplastic, then they all fuse together and contribute to the end-cap.

REFERENCES:
patent: 2895174 (1959-07-01), Hockett
patent: 3026609 (1962-03-01), Bryan
patent: 3457339 (1969-07-01), Pall et al.
patent: 3716436 (1973-02-01), Pall et al.
patent: 4033881 (1977-07-01), Pall
patent: 4078036 (1978-03-01), Keefer
patent: 4220477 (1980-09-01), Kesting
patent: 4392958 (1983-07-01), Ganzi et al.
patent: 4512892 (1985-04-01), Ganzi et al.
patent: 4579698 (1986-04-01), Meyering et al.
patent: 4588464 (1986-05-01), Miyagi et al.
patent: 4623467 (1986-11-01), Hamlin

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