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. 31, 1991
Filed:
Apr. 17, 1990
Applicant:
Inventor:
Yuso Shimizu, San Mateo, CA (US);
Assignee:
Paceco Corp., San Mateo, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66C / ; B66C / ; B62D / ; B61C / ;
U.S. Cl.
CPC ...
212218 ; 212226 ; 212124 ; 105165 ; 1051631 ; 180 2402 ; 280 98 ;
Abstract
Method and apparatus for reduced radius turning for large cranes mounted on curved sections of rails or track which is effected by lifting the outboard sets of wheels of the crane supporting bogies which are located at the corners of the cranes disposed over the rails having the shortest radius of curvature on the inside of the turn and then lowering the bogies when the crane is on a straight section of track.