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:
Jun. 23, 2015
Filed:
Oct. 29, 2010
Martin Engels, Alpen, DE;
Roland Verhulsdonk, Rheinberg, DE;
Ralph Reidel, Rheinberg, DE;
Norgren GmbH, Alpen, DE;
Abstract
A fluid operated actuator () is provided. The fluid operated actuator () includes a body () forming a piston bore (). A piston () is movable within the piston bore (). The fluid operated actuator () also includes a valve unit () coupled to the body () and including a fluid inlet port (), a fluid exhaust port (), and a valve member () configured to selectively open a fluid flow path between the fluid inlet port () and the piston bore () and between the exhaust port () and the piston bore (). The fluid operated actuator () can also include a control unit () coupled to the body () and the valve unit (). The control unit () can include a pilot input port () in fluid communication with the fluid inlet port (). The control unit () can also include first and second pilot output ports () in fluid communication with the valve member (). Further, the control unit () can include a pilot valve () adapted to open a fluid flow path between the pilot input port () and one or more of the first and second pilot output ports () in order to actuate the valve member ().