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:
Nov. 13, 1990
Filed:
Aug. 22, 1989
Yoshimi Saotome, Takasago, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Abstract
An apparatus for supressing vibration and quaky movements of a pivotally mounted boom on a mobile crane. The boom is supported for pivotal movement by a hydraulic cylinder which is subjected to abrupt forces when the crane is in motion. A hydraulic circuit is constructed to prevent such forces from damaging the hydraulic cylinder and vehicle body of the crane. The circuit is selectively operative to place the hydraulic cylinder in either a working or travel made. The circuit includes an accumulator and three change-over valves to control the flow of fluid in the hydraulic cylinder during the work and travel modes of operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile