Seamless pressure responsive diaphragm installation

Details Seamless pressure responsive diaphragm installation Seamless pressure responsive diaphragm installation

1986-08-11

1988-01-26

Olszewski, Robert P.

Presses

With flexible or deformable pressure surface

100194, 100295, 49493, 220 62, 220 73, 229169, 229186, 493 84, 493162, 493243, 493902, B30B 502, B30B 1506, B31B 126, B31B 390

Patent

active

047210400

ABSTRACT:
A flanged, dish shaped rectangular pressure responsive diaphragm is made from non-stretchable flat sheet stock in which the corners are formed with a tapering loop of excess material, and pleat folds take up the excess flange material to allow a tab portion to lie flat across the corner. Spacer strips and pieces are added to provide a uniform flange thickness.

REFERENCES:
patent: 3098429 (1963-07-01), Hagglund
patent: 3550835 (1970-12-01), Persson
patent: 3968282 (1976-07-01), Engel
patent: 4430231 (1984-02-01), Bratten

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