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. 10, 2020
Filed:
Nov. 15, 2018
Applicant:
Geodynamics, Inc., Millsap, TX (US);
Inventors:
Dennis Roessler, Ft. Worth, TX (US);
Raymond Shaffer, Burleson, TX (US);
Kevin George, Cleburne, TX (US);
Assignee:
GEODYNAMICS, INC., Millsap, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 29/00 (2006.01); E21B 33/12 (2006.01); E21B 33/134 (2006.01); E21B 34/06 (2006.01); E21B 17/08 (2006.01); E21B 34/10 (2006.01);
U.S. Cl.
CPC ...
E21B 34/063 (2013.01); E21B 17/08 (2013.01); E21B 29/00 (2013.01); E21B 34/103 (2013.01);
Abstract
An air lock device for sealing a casing located inside a well, the air lock device including a body having a bore and configured to be attached with each end to the casing; a moving element located inside the bore; and a blocking element connected to the moving element, the blocking element preventing a fluid to pass through the bore of the body. The moving element forms an inner chamber with the body in which the blocking element is trapped after the blocking element is punctured by the moving element.