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:
Dec. 30, 2014
Filed:
Apr. 13, 2010
Ville Hopponen, Mäntsälä, FI;
Arto Ikonen, Järvenpää, FI;
Ville Hopponen, Mäntsälä, FI;
Arto Ikonen, Järvenpää, FI;
Valmet Technologies, Inc., Espoo, FI;
Abstract
Foreign matter is removed from a digital hydraulic pressure controller having two portions connectable to each other and each including two valve arrays with a plurality of individually switchable valve means having different flow cross-sections and connected in parallel within a valve array. One valve array of each pressure controller portion can connect a supply line to a controller output line and the other valve array can connect the output line to a drain line. The two pressure controller portions are connected, the valve means having the largest flow cross-section of the valve array of the one portion on the supply line side is opened, the valve means having the largest flow cross-section of the valve array of the other portion on the drain line side is opened and the opened flow path is flushed through the pressure controller with pressurized working fluid, while the other valve means are closed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile