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. 21, 1992
Filed:
Jun. 04, 1990
Applicant:
Inventors:
Assignee:
Somar Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156552 ; 156517 ; 156521 ; 156522 ;
Abstract
A film guide device for film bonding in which a movable guide roller support and guides the film and swing roller arms prevent the slackening of the film while the film is being fed. Also, a driving action of a rotation-drive source, which controls the movement of the movable guide roller support arms, is synchronized with the braking of the film supply role and the movement of the leading edge of the film towards the bonding surface. This device prevents longitudinal wrinkles in the film, misplacement on the bonding surface, and excessive tension on the film.