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. 30, 1993
Filed:
Aug. 11, 1992
Applicant:
Inventors:
Yuzo Shimizu, San Mateo, CA (US);
Hans G Vosskamp, Foster City, CA (US);
Yuksel Yildirim, Foster City, CA (US);
Assignee:
Paceco Corp., San Mateo, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66C / ;
U.S. Cl.
CPC ...
212177 ; 212178 ; 212197 ; 212270 ; 212219 ;
Abstract
An apparatus and method for providing a boom extension for retractable booms of gantry cranes which does not require lowering the boom during attachment of the extension, or increasing the lift capacity of the boom hoist machinery, nor does the boom extension add bending moment to the retractable boom.