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. 08, 2005
Filed:
Sep. 26, 2002
Applicants:
Takemori Takayama, Hirakata, JP;
Tetsuo Ohnishi, Yawata, JP;
Inventors:
Takemori Takayama, Hirakata, JP;
Tetsuo Ohnishi, Yawata, JP;
Assignee:
Komatsu Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F009/28 ;
U.S. Cl.
CPC ...
Abstract
A coupling device for equipment implements is described, which coupling device does not impair the lubricity of bearing sections when the equipment is in service, does not cause seizure during rotation of bearings, does not need frequent feeding of grease to the bearing sections from outside, and provides good noise absorbability. The coupling device has such a structure that a metal based contact materialcapable of storing a lubricating oil and/or lubricant is interposed between an implement bushingmade from steel and implement pinof an implement for construction equipment.