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:
Mar. 06, 2012
Filed:
Nov. 23, 2009
Applicants:
George Ibrahim, Mississauga, CA;
Christopher L. Drenth, Draper, UT (US);
Inventors:
George Ibrahim, Mississauga, CA;
Christopher L. Drenth, Draper, UT (US);
Assignee:
Longyear TM, Inc., South Jordan, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A down-the-hole assembly includes a housing assembly having a head end and a bit end. The housing assembly further includes an inlet joint having an inlet channel defined therein, a sealing portion positioned toward the bit end relative to the inlet joint, and an outlet portion positioned toward the bit end relative to the sealing portion. A hammer assembly including a piston has a piston channel defined therein that includes an inlet in fluid communication with the inlet channel and an outlet in fluid communication with the housing assembly.