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:
Jul. 04, 1978
Filed:
Mar. 03, 1977
Applicant:
Inventor:
Leroy S McChesney, Memphis, TN (US);
Assignee:
Towner Manufacturing Company, Santa Ana, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01B / ;
U.S. Cl.
CPC ...
172406 ; 172400 ; 172413 ; 172414 ; 172421 ; 172599 ;
Abstract
A disc harrow having a pair of spaced support wheels each having its own operating mechanism including a hydraulic actuator for raising and lowering the respective wheel, but wherein the mechanisms are mechanically linked together to ensure substantially simultaneous raising and lowering of the wheels. The interconnecting link includes a spring biased lost motion device whereby one of the hydraulic actuators can be adjusted to permit the wheels to assume different positions of elevation, while, nonetheless, preserving the substantially simultaneous operation feature.