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. 29, 2006
Filed:
Dec. 05, 2003
Applicant:
David Trevas, Houston, TX (US);
Inventor:
David Trevas, Houston, TX (US);
Assignee:
Halliburton Energy Services, Inc., Carrollton, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method for applying rotary percussive impacts to a drill bit, according to which an anvil is connected to the bit and a hammer is driven in one direction in the anvil when the bit encounters a relatively large load. Energy is stored during the movement of the hammer in the one direction and the stored energy is released to drive the hammer in a direction opposite the first direction to produce the percussive impacts.