Method for producing a bowed cassette shim

Details Method for producing a bowed cassette shim Method for producing a bowed cassette shim

1984-05-14

1985-12-31

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

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

Dividing work to form plural articles

264280, 264285, 264294, 264339, 264DIG51, B29C 1702

Patent

active

045620288

ABSTRACT:
A method is described for forming a novel bowed shim for a cassette which includes impacting one surface of a sheet of polymeric material with particles until layer-like portions adjacent its surfaces are differentially expanded and the material is bowed, and then cutting the shim from the material.

REFERENCES:
patent: 2448316 (1948-08-01), Lesavoy
patent: 3556433 (1971-01-01), Abitboul
patent: 3556434 (1971-01-01), Koeppe
patent: 3628295 (1971-12-01), Curtiss
patent: 3777311 (1973-12-01), Freixas
patent: 3804351 (1974-04-01), Kaneko et al.
patent: 3891159 (1975-06-01), Nelson
patent: 3942744 (1976-03-01), Fitterer et al.
patent: 4052522 (1977-10-01), Narita
patent: 4102515 (1978-07-01), Milants
patent: 4174080 (1979-11-01), Yamada
patent: 4201612 (1980-05-01), Figge et al.
pp. 74-78 of "Machine Design" Mar. 20, 1975.

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