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:
Dec. 10, 1991
Filed:
Apr. 06, 1990
Paul P Weyer, Enumclaw, WA (US);
Other;
Abstract
A vehicle having a fluid-powered rotary dipper stick assembly including a boom attachment head and a bucket attachment head with a body extending therebetween. An axle extends from the boom attachment head into the body and is in sliding engagement with an inward wall of the body to provide lateral support thereto. The axle extends to a midportion of the body. The body is rotatable relative to the axle, and is rigidly connected to the bucket attachment head for rotation together as a unit. A hydraulic motor is operable to produce rotational movement of the body relative to the non-rotating axle. Rotational movement of the body produces rotation of a bucket or other work implement attached thereto about the body longitudinal axis independent of the boom attachment head. The assembly uses a single thrust bearing positioned between the body and the boom attachment head to carry thrust loads in both directions. In one embodiment, fluid passageways in the non-rotating axle and a rotary fluid joint conduct hydraulic fluid between the non-rotating and rotating components.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile