Method of forming a filter by die-cutting

Details Method of forming a filter by die-cutting Method of forming a filter by die-cutting

1975-11-10

1976-11-09

Meister, J. M.

Cutting

Processes

Blanking

83 13, 83 1, 83679, 83684, 55521, B26F 144

Patent

active

039903338

ABSTRACT:
A method and apparatus for cutting resilient foamed synthetic plastics filter material by pressing a die against a block of such material to provide cuts which are interleaved extending from opposite faces of the block the cuts at each such face being joined by a curved cut conforming to the desired exterior surface shape of the cut block when it is stretched to provide a corrugated configuration.

REFERENCES:
patent: 3281513 (1966-10-01), Stripp et al.
patent: 3402232 (1968-09-01), Rusha
patent: 3766629 (1973-10-01), Lechtenberg

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