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:
Jan. 04, 2005
Filed:
Mar. 15, 2002
Werner Reinelt, Bochum, DE;
Franz-heinrich Suilmann, Laer, DE;
Werner Reinelt, Bochum, DE;
Franz-Heinrich Suilmann, Laer, DE;
DBT GmbH, Lunen, DE;
Abstract
An electrohydraulic control device for use in the hydraulic systems of advancing support frames of underground mining equipment, which can be switched by means of switching plungers of electromagnets (), and the directional control valves () are put together from pilot control valve () and main control valves () arranged on a common axis, where by the pilot control valve () switches the main control valve () by means of a separate pressure medium supply to be found on an additional control pressure line, in which accepting borings () are suited for the acceptance of main control and pilot control valves () constructed as cartridges which are plugged together.