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:
Aug. 21, 1984
Filed:
Nov. 09, 1981
Applicant:
Inventor:
Richard W Steinberg, North Mankato, MN (US);
Assignee:
Hiniker Company, Mankato, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01B / ;
U.S. Cl.
CPC ...
172551 ; 172573 ; 172711 ;
Abstract
A rotary hoe has a tool bar mounted on a tractor and a plurality of individually pivoted arms carrying hoe wheels. Springs bias the arms in a downward direction to force the hoe wheels into the soil. A rotatable torsion tube supports the springs. An adjustable lock apparatus secured to the torsion tube is used to rotate the tube to adjust the biasing force of the springs.