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. 16, 2022
Filed:
Mar. 03, 2021
John Burris, Bixby, OK (US);
James Sloan, Tulsa, OK (US);
Ronald Garr, Inola, OK (US);
BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US);
Abstract
An injection valve including a primary valve having a flapper, a flapper seat configured to seat the flapper, and a flow tube disposed to move relative to the flapper and thereby cause the flapper to be unseated from the flapper seat, a secondary valve disposed within the flow tube, the secondary valve including a secondary housing, and an openable and closable flow port through the secondary housing, and an annular pressure-drop ring disposed between the secondary housing and the flow tube.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile