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:
Jun. 24, 1986
Filed:
Sep. 09, 1983
Applicant:
Inventors:
William F Ward, Sr, Hampstead, MD (US);
Raymond S Watson, Baltimore, MD (US);
Assignee:
The Ward Machinery Company, Cockeysville, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B31B / ;
U.S. Cl.
CPC ...
493 59 ; 493 60 ; 493354 ; 493396 ; 83881 ;
Abstract
A method of slitting selected plies of multiply paperboard blanks by compressing narrow portions against an anvil surface (preferably soft) and cutting one or more plies along the compressed portions. The apparatus includes a cutting rule (straight or annular) with compression rules on each side to compress the blanks simultaneously with the cutting. The method and apparatus may be used in conjunction with conventional flat-bed or rotary diecutting.