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:
Dec. 31, 1991
Filed:
Mar. 05, 1991
Applicant:
Inventor:
Steven D Davis, Yuciapa, CA (US);
Assignee:
W.A. Lane, Inc., San Bernardino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B / ; B65B / ;
U.S. Cl.
CPC ...
53551 ; 533742 ; 533745 ; 533746 ; 533748 ; 156581 ; 1565831 ;
Abstract
A seal for a pouch packaging machine as, for instance, a form, fill and seal packaging machine, includes first and second seal bars each having a sealing surface thereon. The seal bars are located on the machine in positions locating the sealing surfaces on the respective seal bars opposed to one another. In cross section the respective sealing surfaces on the seal bars each include a plurality of concave and convex surface features. The convex surface features have a radius of curvature that is less than the radius of curvature of the concave surface features thus rendering the sealing surfaces asymmetrical.