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.

Date of Patent:
Oct. 02, 1984

Filed:

Feb. 25, 1982
Applicant:
Inventors:

Raymond S Watson, Baltimore, MD (US);

William F Ward, Sr, Hampstead, MD (US);

Assignee:

The Ward Machinery Company, Cockeysville, MD (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B26D / ;
U.S. Cl.
CPC ...
493342 ; 83116 ; 83137 ; 493 82 ;
Abstract

Improved blank-stripping apparatus for rotary die cutters of the type which have a die cutting roll, and an anvil roll for supporting paperboard blanks against a cutting rule on the die cutting roll, includes a rotary-cam-timed valve system pressure-actuating one or more pneumatic piston and cylinder assemblies within or adjacent the cutting rule for ejecting scrap radially from the cutting rule in synchronism with rotation of the die cutting roll; after scrap ejection the valve system vents pressure so that contact with a succeeding paperboard blank and/or spring bias easily retracts the plunger to position for pneumatic actuation in the succeeding cycle of operation.


Find Patent Forward Citations

Watson, Raymond. (1984). Blank stripping apparatus for rotary die cutters (U.S. Patent No. 4474565). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4474565

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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