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:
Jan. 08, 2013
Filed:
Feb. 06, 2008
Applicants:
Ryan Amies, Calgary, CA;
Grant George, Calgary, CA;
Jordan James, Edmonton, CA;
Geoff Steele, Calgary, CA;
Inventors:
Ryan Amies, Calgary, CA;
Grant George, Calgary, CA;
Jordan James, Edmonton, CA;
Geoff Steele, Calgary, CA;
Assignee:
Stellarton Technologies Inc., Calgary, Alberta, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 47/12 (2006.01); E21B 43/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An intermittent lift plunger includes at least one seal mandrel, a bottom sub and an upper valve assembly. The valve assembly is closed by a well bottom stop which inserts into the lift plunger and opened by a lubricator stop at the top of the well. The seal mandrel includes a sleeve seal formed from an elastomeric rubber or plastic, which inflates to engage the well bore surface when the valve is closed and a pressure differential exists.