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. 26, 2017
Filed:
Apr. 24, 2013
Don Atencio, Farmington, NM (US);
Don Atencio, Farmington, NM (US);
Fracmaster, LLC, Houston, TX (US);
Abstract
A valve seal assembly can be energized by external pressure, such as by hydraulic pressure introduced via injection ports, so as to press the seal assembly against a gate with enough force to block paths where sand and chemicals would otherwise enter the valve body cavity or void. The external pressure makes the parts of the seal assembly move like a piston, forcing the seat of the seal assembly to press against the gate, eliminating the machined tolerances or gaps required for the gate to be opened or closed. A separate valve seal assembly can be provided for each face of the gate, and both assemblies can be activated when the gate is in an open position (fluid is flowing through the valve), and an upstream valve seal assembly can be activated alone when the gate is in a closed position.