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. 14, 1991
Filed:
Dec. 06, 1989
Applicant:
Inventor:
Hugo Boeckmann, Arlington Heights, IL (US);
Assignee:
Zip-Pak, Incorporated, Northbrook, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31B / ; B31B / ;
U.S. Cl.
CPC ...
493194 ; 493199 ; 493206 ; 493470 ; 156581 ; 1565831 ;
Abstract
Thermoplastic film bag making material is processed between a hotseal jaw and cutoff knife assembly. The apparatus has complementary first and second jaws between which the material is received for sealing bag side edge areas of the bag making material. The first jaw has a groove and the second jaw has a cutoff knife for extension into the groove for separating the material into individual bags. A rubber anvil block is in a groove underlying a zipper of the bag material and the knife thrusts into the block and attains substantially straight edges in the bag cutoff. Improved end sealing of the zipper also results.