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:
Jul. 28, 1987
Filed:
Nov. 06, 1985
Applicant:
Inventors:
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264 22 ; 26 71 ; 2642884 ; 4251 / ;
Abstract
The present invention relates to a method for holding a moving film comprising bringing each surface of a set of conductive rolls into contact with a front surface and a back surface of a moving film respectively, at least one of the surfaces of the set of rolls being constructed of an elastomer, and holding the moving film by the surfaces of the set of rolls while establishing a high electric potential difference between the set of rolls. The present invention provides a useful method for conveying or stretching the film at high speed without operational troubles, thereby providing a strong film free from scratches or foreign particles on the surface.