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. 31, 1994
Filed:
Oct. 30, 1992
Applicant:
Inventors:
Randall C Restle, Crestview Hills, KY (US);
Walter Munch, Fort Thomas, KY (US);
Assignee:
R.A. Jones & Co. Inc., Covington, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B / ; B65B / ;
U.S. Cl.
CPC ...
53 51 ; 53 67 ; 53455 ; 53562 ; 493-9 ;
Abstract
A vacuum means for detecting transverse seal areas dividing unsealed areas in adjacent plies of a moving, multiple ply web includes vacuum ports defining a gap through which the web moves. Unsealed web areas are sucked against the ports. When a sealed area enters the gap, it is sucked to one or the other port, uncovering the opposite port. The ensuing pressure differential is sensed to indicate a seal entering or passing the gap. Seal signals are produced and used to control accurate cutting at the seals to separate the web into individual pouches. Control and circuitry apparatus and methods are disclosed.