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:
Mar. 09, 2021
Filed:
Dec. 15, 2017
Applicant:
Jungheinrich Aktiengesellschaft, Hamburg, DE;
Inventor:
Thomas Stolten, TremsbĂĽttel, DE;
Assignee:
Jungheinrich Aktiengesellschaft, Hamburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66F 9/22 (2006.01); B66F 9/20 (2006.01);
U.S. Cl.
CPC ...
B66F 9/22 (2013.01); B66F 9/205 (2013.01); F15B 2211/4053 (2013.01); F15B 2211/71 (2013.01);
Abstract
A lifting device for an industrial truck comprises a lift frame with a moveably guided load carrier and at least one moveably guided mast stage. A free lift cylinder is configured to actuate the load carrier and at least one mast lift cylinder is configured to actuate the at least one mast stage. A hydraulic assembly supplies the free lift cylinder and the at least one mast lift cylinder with hydraulic fluid and further comprises at least one delivery valve and at least one recirculating valve.