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. 30, 2021
Filed:
Mar. 16, 2017
Hydac Systems & Services Gmbh, Sutzbach/Saar, DE;
Christoph Stoenner, St. Ingbert, DE;
Sascha Alexander Biwersi, Mettlach, DE;
Peter Jakobs, Saarbruecken, DE;
HYDAC SYSTEMS & SERVICES GMBH, Sulzbach/Saar, DE;
Abstract
A control device for at least one hydraulic working section (A, B), which can be connected to a pressure supply source (P) and a return flow (T) via a hydraulic supply circuit and to a control valve () supplied with a pilot pressure. The device includes an emergency shutdown system () having a pilot solenoid valve () and an additional valve (). Both the hydraulic energy flow from the pressure supply source (P) to at least one of the respective working sections (A, B) and the pilot pressure supply to the control valve () can be suppressed by the pilot solenoid valve () via the additional valve ().