Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – And with bending
Patent
1988-08-18
1989-11-21
Schmidt, Frederick R.
Manufacturing container or tube from paper; or other manufacturi
With cutting, breaking, tearing, or abrading
And with bending
493403, 83347, B05B 114
Patent
active
048819360
ABSTRACT:
There is provided an apparatus for applying constant pressure to a plurality of anvil rollers for crush-scoring used in combination with crush-scoring cylinders having protrusions extending from the surface thereof. Each anvil roller is supported in a substantially frictionless manner and the constant pressure is supplied by a flexible diaphragm acting on a plunger which can move substantially without friction in a pneumatic cylinder.
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patent: 4257298 (1981-03-01), Agkut
patent: 4698052 (1987-10-01), Slobodkin
Avery International Corporation
Schmidt Frederick R.
Showalter Robert
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