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:
Nov. 26, 1985
Filed:
Jun. 01, 1983
Applicant:
Inventor:
William D Kreager, Dallas, TX (US);
Assignee:
Frito-Lay, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
156203 ; 53451 ; 53551 ; 156466 ;
Abstract
A method and apparatus for providing a fin-type back seal on packages produced in a vertical form and fill machine utilizes a web having cohesive coating stripes on the edges thereof which are juxtapositioned by forming and then guided to a cold sealing zone. A cold seal assembly with a pressure-biased grooved roller and complementary platen apply rolling pressure to the cohesively striped area without the application of external heat to provide a good seal. The unit is adjustable universally so as provided adaptation to various styles and types of existing machines.