Appliance and process for reducing distortion of slit metal...

Details Appliance and process for reducing distortion of slit metal... Appliance and process for reducing distortion of slit metal...

2005-02-22

2005-02-22

Shoap, Allan N. (Department: 3724)

Cutting

Other than completely through work thickness or through work...

Splitting

C083S156000, C083S425300, C072S203000

Reexamination Certificate

active

06857350

ABSTRACT:
A machine for slitting metal sheet with rotating knives has roller assemblies which present rollers against the metal sheet immediately beyond the knives. The rollers bear against both faces of the slit metal sheet and straddle the slits, all to reduce distortion caused by the knives and to iron out burrs. The roller assemblies are fitted to tracks on the slitting machine and may be moved along those tracks to accommodate relocation of the knives.

REFERENCES:
patent: 2214618 (1940-09-01), Kenyon et al.
patent: 2775151 (1956-12-01), Schumacher
patent: 3650168 (1972-03-01), Ruschmann
patent: 3724251 (1973-04-01), Wegner
patent: 3768293 (1973-10-01), Ruesch
patent: 4580336 (1986-04-01), Kerley et al.
patent: 4866967 (1989-09-01), Sporenberg et al.
patent: 4887502 (1989-12-01), Voges
patent: 5592845 (1997-01-01), Gerenser et al.
patent: 5755131 (1998-05-01), Voth

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