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. 11, 2020
Filed:
Mar. 10, 2017
National Oilwell Varco, L.p., Houston, TX (US);
Randall Ferrain Weaver, McAlester, OK (US);
Mark Ernest Wolf, Katy, TX (US);
Clifton Dee Eggleston, McAlester, OK (US);
National Oilwell Varco, L.P., Houston, TX (US);
Abstract
A fluid separation apparatus includes a hydrocyclone () having an orifice () therein, a housing () disposed in the hydrocyclone and having a bore (), a piston () disposed in the bore () of the housing (), and a first annular seal () disposed between the housing () and the piston () and configured to restrict fluid communication between the housing () and the piston (), wherein the piston () includes a passage () extending through the piston () and having a pin () coupled to a first end () of the piston, the piston () being actuatable to move between a first position () where the pin () is clear of the orifice () of the hydrocyclone, and a second position where the pin () is disposed in the orifice (), wherein, the piston () is configured such that as the piston is actuated from the first position to the second position, fluid is permitted to flow into the passage () of the piston () from the bore () of the housing ().