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:
Feb. 25, 1992
Filed:
Jun. 05, 1990
Peter Greller, Enkenbach, DE;
Werner Schauss, Bruchmuhlbach-Miesau, DE;
Pfaff Industriemaschinen GmbH, Kaiserslautern, DE;
Abstract
A plastic welding machine for producing connection seams with thermal plastic foil or thermal plastic film. The folding device includes a fix support plate and a folding plate which is provided with a U-shaped guide stop and can be pivoted back and forth between a feed position and a working position. Folding device can be folded open for introducing the edge strip of the material to be welded and then folded up where the edge strip is folded over in the shape of a U. A flat U-shaped guide sleeve is provided which may be pivoted into the folding device to produce lap joints on the two layers of the material to be welded.