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. 11, 1984
Filed:
Aug. 27, 1982
Applicant:
Inventors:
Franklin D Pichelman, Minnetonka, MN (US);
Perry M Domaas, Brooklyn Center, MN (US);
Assignee:
Flo-Pac Corporation, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21C / ;
U.S. Cl.
CPC ...
29 8 / ; 15 9 / ; 1523 / ; 2411017 ; 29 8 / ;
Abstract
A scarifying machine is provided with a mounting plate having a plurality of downwardly open wells formed in it adjacent its periphery and that extend above the plane of the plate. Each well is defined and bounded by a pair of downwardly diverging, upwardly smoothly merging internal surfaces rendering the well non-clogging. A plurality of scarifying discs are mounted to the plate with the discs extending upwardly into the wells and downwardly beneath the mounting plate for contact with a floor.