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:
Apr. 24, 1979
Filed:
Mar. 11, 1977
Applicant:
Inventor:
Wilbur G Short, Browns, IL (US);
Assignee:
Canron, Inc., Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B26D / ;
U.S. Cl.
CPC ...
83380 ; 83385 ;
Abstract
On a shear machine having a ram, a work table, and a hold-down means to grip work to the work table, a hydraulically sequenced circuit to inhibit the downstroke of the ram until a sufficient hold-down pressure has been achieved at the hold-down means to effectively grip the work to be operated upon, and a booster cylinder responsive to the down-stroke of the ram for maintaining the pressure at the hold-down means during the cutting stroke of the ram.