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:
Jan. 17, 1984
Filed:
Aug. 10, 1981
Richard W Steinberg, North Mankato, MN (US);
Hiniker Company, Mankato, MN (US);
Abstract
An earthworking tool having a biased trip assembly for yieldably holding the tool in a ground working position, allowing the tool to move over an obstacle, and return the tool to its earthworking position. The trip assembly has a stationary hinge member mounted to a support and a movable hinge member pivoted to the stationary member. A split sleeve spring surrounding the stationary and movable hinge members biases the members and earthworking tool to a ground working position. A modified trip assembly has a pair of split ring springs surrounding a stationary hinge member and movable hinge member to bias the movable member and earthworking tool attached thereto to a ground working position. An arm connected to the movable member rotatably supports a rotary hoe wheel.