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. 09, 2002
Filed:
Dec. 23, 1999
Applicant:
Inventors:
Assignee:
Mitsubishi Heavy Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61F 5/00 ;
U.S. Cl.
CPC ...
B61F 5/00 ;
Abstract
A seismic isolation system is provided with a swing bearing ring consisting of an upper ring and a lower ring, which are rotatable relatively, between a crane body and a traveling means. A lower vertical shaft of a block pivotally supported on saddles of the crane body is supported by a swing bearing provided at an eccentric position on the upper ring. An automatic restoring mechanism is provided which restores the swing of a horizontal lever, whose proximal end is installed to the upper ring of the swing bearing ring, around the centerline C2.