Filters

Details Filters Filters

1981-09-30

1983-02-15

Nozick, Bernard

Special receptacle or package

With article content

55359, 55497, 55521, 55502, 264261, 264DIG48, 2104931, B65D 8584

Patent

active

043736351

ABSTRACT:
A replaceable filter cartridge has a pleated paper filter medium mounted within a frame or casing having a closed side and an open side, the open side being covered by a removable protective tray or lid the internal shape of which has been used in manufacture for moulding a sealing surface onto the periphery of the frame or casing, the closed side of the frame or casing being provided with a perforated portion which is also removable for use of the filter cartridge.

REFERENCES:
patent: 2138874 (1938-12-01), Myers
patent: 3183286 (1965-05-01), Harms
patent: 3397518 (1968-08-01), Rogers

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