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:
Mar. 23, 1982
Filed:
Aug. 26, 1980
James C Seal, Picayune, MS (US);
Other;
Abstract
A spreader/grader is attachable to a three-point hitch associated with a tractor and includes a pair of curved cutting blades which are adjustable so as to control cutting depth. The cutting blades are mounted between a pair of side runners and include curved cutting edges to facilitate spreading or grading operations. The positioning of the blades is variable both with respect to cutting depth and to angular orientation with the surface being graded through the use of hydraulic ram adjustment mechanisms provided at respective ends of the blades. Both blades may be attached to the spreader/grader so as to present cutting edges directed in the same direction and their respective cutting depths may be varied from each other through the use of the hydraulic ram adjustment mechanisms, or alternatively, one or both of the blades may be positioned with their cutting edges reversely directed from the direction of forward movement of the pulling tractor so as to provide a grading or feathering operation.