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:
Aug. 25, 2009
Filed:
Dec. 22, 2006
Richard Coates, Middlebury, CT (US);
Chung Chang, Lexington, MA (US);
Iain Cooper, Sugarland, TX (US);
Marcel Boucher, Houston, TX (US);
Richard Coates, Middlebury, CT (US);
Chung Chang, Lexington, MA (US);
Iain Cooper, Sugarland, TX (US);
Marcel Boucher, Houston, TX (US);
Schlumberger Technology Corporation, Cambridge, MA (US);
Abstract
An acoustic source for delivering acoustic energy to a ground formation, particularly a rock formation, the source including (a) a solenoid to generate an electromagnetic field, (b) a bullet positioned within the influence of the electromagnetic field, (c) a casing surrounding and enclosing the solenoid and bullet so that both the solenoid and the bullet are protected from the surrounding environment, in use the solenoid being electrically energized to cause the bullet to be propelled by electromagnetic force so that the bullet impacts an anvil portion of the casing in contact with the ground formation is provided.