Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Douglas W. Beard0
Frode Sveen0
Joseph O. Beard0
Date of Patent
May 28, 2024
0Patent Application Number
181229730
Date Filed
March 17, 2023
0Patent Citations
...
Patent Primary Examiner
Patent abstract
A hydraulic control system for blowout preventers systems, frack valves and chokes, and related wellhead and control equipment used in oil and gas well drilling operations. The hydraulic control system can include one or more hydraulic control valves or pressure regulators including an internal, linear slider and pairs of seal rings. Lapped and polished surfaces of the seal rings and sliders can form a dynamic metal-to-metal seal within the hydraulic control valves or pressure regulators.
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