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:
May. 24, 2011
Filed:
Feb. 22, 2010
Lambert Drent, Nieuw Buinen, NL;
Dirk Albert Stamhuis, Stadskanaal, NL;
William J. O'neil, Green Bay, WI (US);
Alan E. Pleuss, Manitowoc, WI (US);
Lambert Drent, Nieuw Buinen, NL;
Dirk Albert Stamhuis, Stadskanaal, NL;
William J. O'Neil, Green Bay, WI (US);
Alan E. Pleuss, Manitowoc, WI (US);
Manitowoc Crane Companies, LLC, Manitowoc, WI (US);
Abstract
A hook block for a crane includes a sheave housing containing sheaves, extended portions with a hole through each, and a housing frame with a locking surface; a cross beam has multiple brackets each with a hole; a bracket has a plurality of surfaces corresponding to a plurality of angles of relative position between the sheave housing and the first cross beam, wherein the plurality of surfaces correspond to the locking surface and form a gap therebetween at each of the plurality of angles; a shaft rotatably captured within the holes of the extended portions of the housing and of the multiple brackets; and a locking bar sized to be placed in the gap between the locking surface and any of the plurality of surfaces to immobilize movement of the sheave housing relative to the cross beam.