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. 24, 2020
Filed:
Mar. 15, 2016
Metso Flow Control Oy, Vantaa, FI;
Jan Gunell, Söderkulla, FI;
Kalle Vuorio, Helsinki, FI;
METSO FLOW CONTROL OY, Vantaa, FI;
Abstract
A fluid valve assembly for controlling a single-acting or double-acting actuator comprises a valve body having a central bore with at least one supply port for receiving a supply of fluid under pressure, at least one actuator port (C,C) for providing a control fluid pressure to an actuator, and at least one exhaust port (EX,EX). At least one pair of counter-acting metering edges operationally tied together by a stem movable within central bore in an axial direction a pilot force. Each metering edge of each counter-acting pair comprises a mating seat surface (PS,PS,PS,PS) on the valve body or the stem, and a poppet ring (PR,PR, PR,PR) supported by a flexible element (SD,SD,SD,SD) to the valve body or the stem in a manner allowing a relative axial movement of the poppet ring and the supporting valve body or stem also in a closed state of the respective metering edge.