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:
Feb. 28, 2012
Filed:
Apr. 23, 2009
Applicants:
Freeman L. Hill, Houston, TX (US);
Randall L. Evans, Sugarland, TX (US);
Inventors:
Freeman L. Hill, Houston, TX (US);
Randall L. Evans, Sugarland, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus and a method are provided for discharging a plurality of fluids downhole. In one aspect, the apparatus may include a first chamber and a second chamber separated by movable barrier, wherein draining the fluid from the first chamber causes the barrier to move and allow an actuating member to drain the second fluid from the second chamber.