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:
Apr. 11, 2017
Filed:
Jun. 22, 2012
Bala Durairajan, Houston, TX (US);
Rahul Bijai, Spring, TX (US);
Sandeep Tammineni, Houston, TX (US);
William Moore, Ponca City, OK (US);
Ehren Long, Ponca City, OK (US);
Bala Durairajan, Houston, TX (US);
Rahul Bijai, Spring, TX (US);
Sandeep Tammineni, Houston, TX (US);
William Moore, Ponca City, OK (US);
Ehren Long, Ponca City, OK (US);
SMITH INTERNATIONAL, INC., Houston, TX (US);
Abstract
A drill bit having a bit body with a longitudinal axis extending therethrough and a plurality of blades extending from the bit body is disclosed. Each blade has an outer face and at least one side wall. The drill bit has at least one junk slot, wherein each junk slot is defined by the bit body surface and the side walls of adjacent blades. At least one nozzle bore is formed in the bit body, wherein each nozzle bore has an intersecting surface between the bit body surface of a junk slot and an inner surface of the nozzle bore. At least one formation evacuation channel extends through the intersecting surface of at least one of the nozzle bores, wherein each formation evacuation channel has a base surface, and wherein the formation evacuation channel extends partially around the circumference of the nozzle bore.