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:
May. 14, 1996
Filed:
May. 10, 1994
Applicant:
Inventors:
George D Whiteside, Lexington, MA (US);
Richard A Rosenthal, Winchester, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271277 ; 271 82 ; 101409 ;
Abstract
There are method and apparatus for automatically clamping and cinching a flexible sheet medium on a rotatable supporting surface with clamping and cinching forces which independently increase as function of the rotational speed of the support surface. The clamp applies such forces to at least one edge of the sheet medium in a manner so that the sheet edge will not bend or push the sheet edge away from a pivot axis of the clamp so as to reduce sheet medium separation.