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:
Dec. 03, 2013
Filed:
Apr. 21, 2010
Applicants:
Benjamin Eric Graham, Marsden, CA;
Andre Michael Masse, Edmonton, CA;
Brett Charles Davidson, Cambridge, CA;
Inventors:
Benjamin Eric Graham, Marsden, CA;
Andre Michael Masse, Edmonton, CA;
Brett Charles Davidson, Cambridge, CA;
Assignee:
Wavefront Reservoir Technologies Ltd., Cambridge, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15D 1/00 (2006.01); F16K 31/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
For pulsed injection of liquids into the ground, the tool has a rotating cylinder, having through-slots. The tool has an insert, which is pressed against the rotating cylinder. As the cylinder rotates, the slots in the rotor cover/uncover the slots in the insert, creating the required pulses. By suitably shaping the slots, the pulses can have a fast rise-time from closed to open. The insert is shaped to minimize flow interference.