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:
Jul. 15, 2008
Filed:
Aug. 16, 2005
Nathan J. Harder, Houston, TX (US);
Harry B. Curlett, Cody, WY (US);
Paul O. Padgett, Casper, WY (US);
Samuel R. Curlett, Powell, WY (US);
Nathan J. Harder, Houston, TX (US);
Harry B. Curlett, Cody, WY (US);
Paul O. Padgett, Casper, WY (US);
Samuel R. Curlett, Powell, WY (US);
Particle Drilling Technologies, Inc., Houston, TX (US);
Abstract
A system and method for excavating a subterranean formation, according to which a slurry of liquid and a plurality of impactors are introduced into at least one cavity formed in a body member and are discharged from the cavity so that the impactors remove a portion of the formation. The impactors are separated from at least a portion of the fluid and the materials removed from the formation, so that the impactors can be reused.