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. 12, 2022
Filed:
Dec. 17, 2020
Applicant:
Cascade Corporation, Fairview, OR (US);
Inventor:
David W. Petronek, Boring, OR (US);
Assignee:
Cascade Corporation, Fairview, OR (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66F 9/18 (2006.01); G01G 19/10 (2006.01); B66F 9/22 (2006.01);
U.S. Cl.
CPC ...
G01G 19/10 (2013.01); B66F 9/183 (2013.01); B66F 9/184 (2013.01); B66F 9/22 (2013.01); F15B 2211/30595 (2013.01); F15B 2211/55 (2013.01); F15B 2211/555 (2013.01); F15B 2211/565 (2013.01);
Abstract
Hydraulic valve circuitry adapted for hydraulic connection to a lift truck having a mast and at least one lift cylinder for alternately raising and lowering the mast. The hydraulic assembly is also adapted for hydraulic connection to an attachment to the lift truck, the attachment having opposed clamps actuated by respective clamp cylinders. The hydraulic assembly preferably comprises a valve circuit capable of causing the at least one lift cylinder to be an accumulator.