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. 04, 1999
Filed:
Jul. 23, 1997
Applicant:
Inventor:
Darrel L Turner, Reeseville, WI (US);
Assignee:
Fisher-Barton, Inc., Watertown, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01D / ;
U.S. Cl.
CPC ...
56255 ; 56295 ; 56DI / ; 29557 ;
Abstract
A rotary blade for a mower or cutter is formed from boron steel, such as 10B38 steel, and is heat treated to yield high hardnesses of 48 Rockwell C or above. The blade has increased hardness because of the heat treating, but due to the alloy composition, is still sufficiently tough to perform satisfactorily as a cutting blade, in particular to pass conventional impact tests. Furthermore, the low carbon content of the blade makes cold working of the part practical.