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. 12, 2025
Filed:
Oct. 12, 2023
Applicant:
James Allen Jefferies, Granbury, TX (US);
Inventor:
James Allen Jefferies, Granbury, TX (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/12 (2006.01);
U.S. Cl.
CPC ...
E21B 43/121 (2013.01); E21B 43/123 (2013.01);
Abstract
A plunger lift system for lifting fluids in a well bore includes a plunger body having a central bore, and a bypass valve assembly disposed at a lower end of the plunger body. The bypass valve assembly includes a valve cage, a valve stem disposed at least partially within the valve cage, a clutch bobbin carried by the valve cage and being operable associated with the valve stem, and at least one canted coil spring carried by the clutch bobbin for controlling movement of the valve stem.