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. 17, 1977
Filed:
Oct. 22, 1975
Applicant:
Inventor:
Peter Zimmer, Kufstein, OE;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41F / ;
U.S. Cl.
CPC ...
1011271 ; 38102 ;
Abstract
An apertured rectangular foil of substantially inextensible sheet metal, e.g. nickel or steel, has a hole at each corner engaged by a resiliently biased gripper exerting on it a diagonally outward force to hold the foil stretched in a surrounding tenter frame supporting these grippers. The frame is provided with marginal ledges, underlying the foil at least along the major sides of the rectangle, onto which the foil edges are releasably pressed by toggle clamps.