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:
Mar. 05, 2002
Filed:
Dec. 08, 1998
Applicant:
Inventor:
Charles Strickland, Hampton, AR (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/300 ;
U.S. Cl.
CPC ...
E21B 4/300 ;
Abstract
A wellhead assembly including a skid, drum, cable spooled on the drum and level wind mechanism is set forth to extend the cable into and out of a well borehole for production of a well The cable spools over a measuring wheel extends into the well and supports a bail on the end of it. The bail has a foot valve for filling, thereby enabling retrieval of a bail into a surface located stinger connected with an air pump to force liquid from the bail. A control system enables cyclic operation.