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:
Oct. 29, 2013
Filed:
Feb. 15, 2012
Applicants:
Christopher M. Walthers, Gresham, OR (US);
Robert J. Flak, Gresham, OR (US);
Inventors:
Christopher M. Walthers, Gresham, OR (US);
Robert J. Flak, Gresham, OR (US);
Assignee:
Cascade Corporation, Portland, OR (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66F 9/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hydraulic rotating and braking system for a lift truck-mountable load handling assembly has a hydraulically-driven worm screw with a hydraulic motor located adjacent one end of the screw and a friction brake located adjacent the opposite end of the screw. The system includes a friction brake having a brake controller located at least partially within the worm screw. The friction brake is releasable by the exhaust of fluid without the need for a fluid exhaust line extending to the lift truck's reservoir tank.