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:
Apr. 06, 1976
Filed:
Dec. 09, 1974
Applicant:
Inventor:
Daniel B Shore, Niles, IL (US);
Assignee:
International Harvester Company, Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
3712 / ; 37129 ; 91414 ;
Abstract
Frame-drawn scraper having a bowl with hydrospring suspension and hydraulic pump, comprising: bowl raise-lower means disposed between and connecting the scraper draft frame and bowl; and an intervening hose, accumulator, and motion sensitive blocking safety valve connected in circuit in that order from the pump to the bowl means, responsive to extreme lowering movement of the bowl if the hose ruptures, to hydraulically lock the bowl from farther lowering by automatically blocking the circuit.
Shore, Daniel. (1976). Scraper bowl with hydraulic safety lock (U.S. Patent No. 3947981). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3947981
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile