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. 23, 2019
Filed:
Oct. 20, 2016
Applicant:
Putzmeister Engineering Gmbh, Aichtal, DE;
Inventors:
Jan-Martin Veit, Reutlingen, DE;
Wolf-Michael Petzold, Aichwald, DE;
Assignee:
Putzmeister Engineering GmbH, Aichtal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 20/00 (2006.01); B66C 13/20 (2006.01); E02F 9/22 (2006.01); E04G 21/04 (2006.01); F04B 15/02 (2006.01); F04B 17/06 (2006.01); F04B 49/06 (2006.01); F15B 11/16 (2006.01); F15B 13/06 (2006.01);
U.S. Cl.
CPC ...
F15B 20/00 (2013.01); B66C 13/20 (2013.01); E02F 9/226 (2013.01); E02F 9/2267 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); E04G 21/04 (2013.01); F04B 15/02 (2013.01); F04B 17/06 (2013.01); F04B 49/06 (2013.01); F15B 11/16 (2013.01); F15B 13/06 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/625 (2013.01); F15B 2211/7142 (2013.01); F15B 2211/8755 (2013.01);
Abstract
Disclosed is a control system for a hydraulic work machine, comprising a plurality of hydraulic work circuits for supplying actuators and/or drive units of movable machine parts with hydraulic fluid, and an emergency stop circuit for the work circuits for avoiding danger caused by the machine parts. According to this disclosure, the emergency stop circuit comprises a single safety valve which is connected in parallel to the work circuits via at least one branch line each at the inlet and to a pressure relief point at the outlet.