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:
Sep. 22, 1992
Filed:
Jan. 08, 1992
Applicant:
Inventors:
Vytautas Kupcikevicius, Oaklawn, IL (US);
Philip F Cilia, Palos Hills, IL (US);
Darrell L Burkeen, Lansing, IL (US);
Assignee:
Viskase Corporation, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; H05B / ;
U.S. Cl.
CPC ...
219243 ; 219542 ; 1565832 ; 338316 ;
Abstract
The heat sealing wire of an impulse heat sealer is held against an operating face of a support bar by an insulating fabric which is draped over the wire and secured in a slot formed in the support bar. The securing drape of fabric allows unrestricted expansion and contraction of the hot wire. Also if the slot lies in a curved plane which extends perpendicular to the plane of the support bar operating face, the drape of insulating fabric and consequently the sealing wire follow the same curve so the heat sealer can make seals of a non-linear configuration.