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:
Oct. 08, 1991
Filed:
Mar. 15, 1990
Applicant:
Inventor:
Michael J McMahon, Palatine, IL (US);
Assignee:
Zip-Pak Incorporated, Northbrook, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B / ; B65B / ; B65B / ; B65B / ;
U.S. Cl.
CPC ...
53552 ; 533745 ; 533893 ;
Abstract
In a form, fill and seal package or bag making machine having a vertical forming and filling tube and cross-sealing and pull down mechanism below the discharge end of the tube, a mechanism by which the filled bag is supportingly manipulated during cross-sealing to avoid bag contents weight induced stretch stress damage to the thermosealed top edge of the filled bag, and avoiding bag contents weight caused pleats and tucks in the bag body film, and redistributing the filled bag contents to avoid central sagging of the filled bag.