The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 1995
Filed:
Feb. 07, 1994
Applicant:
Inventor:
Reinhard Schulz, Hanover, DE;
Assignee:
Hermann Berstorff Maschinenbau GmbH, Hanover, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
451190 ; 451188 ; 451183 ; 451207 ; 451110 ;
Abstract
The invention relates to a polishing stack with at least one fixed and one moveable polishing roll for polishing a plastic sheet leaving a wide extrusion die. A device is provided that preloads the frames and the bearings and acts on a roll gap adjusting device which includes a pinion gear arrangement and drive for finely adjusting the roll gap between the fixed and moveable rolls. The polishing stack in preferred form includes a center fixed roll and top and bottom adjustable rolls.