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:
Aug. 20, 2019
Filed:
Jun. 30, 2016
Tescom Corporation, Elk River, MN (US);
Jacob T. R. Renollett, Andover, MN (US);
Todd W. Larsen, Milaca, MN (US);
TESCOM CORPORATION, Elk River, MN (US);
Abstract
A valve assembly includes a sensing cavity and a piston cavity defined in valve body and/or in a bonnet. A piston head of a piston may be disposed within the piston cavity, and a piston stem has an end portion in contact with valve plug. A baffle plate has a first surface defining a portion of the sensing cavity and a second surface defines a portion of the piston cavity. The baffle plate includes at least one baffle aperture such that the sensing cavity is in fluid communication with the piston cavity, and pressure in the sensing cavity acts on a surface of the piston head to displace the piston and the valve plug between an open and closed position. The at least one baffle aperture is adapted to restrict the flow of fluid between the sensing cavity and the first working volume.