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. 06, 1982
Filed:
Jun. 05, 1980
Applicant:
Inventors:
Leonard A Bettin, Lyons, IL (US);
William C Swanson, Clarendon Hills, IL (US);
Assignee:
International Harvester Co., Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A01B / ;
U.S. Cl.
CPC ...
280 4323 ; 91515 ; 137 99 ; 172401 ; 172413 ;
Abstract
An implement having a rotary flow divider controlling fluid to and from at least two independent hydraulic rams for raising and lowering the implement in a level manner. A counter totals the revolutions of the flow divider and actuates an electrical circuit which controls solenoid valves to stop the implement at the proper height.
Bettin, Leonard. (1982). Self-leveling and height control hydraulic system (U.S. Patent No. 4337959). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4337959
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile