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:
Sep. 30, 2003
Filed:
Feb. 06, 2001
Applicant:
Inventors:
Eric Charles Sullivan, Houston, TX (US);
Theodore Edward Zaleski, Jr., Houston, TX (US);
Scott Ray Schmidt, The Woodlands, TX (US);
Don Quy Nguyen, Houston, TX (US);
Glenn R. Zadrapa, Highlands, TX (US);
Chih Lin, Spring, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 1/000 ; E21B 4/712 ;
U.S. Cl.
CPC ...
E21B 1/000 ; E21B 4/712 ;
Abstract
An improved drill bit is provided with a sensor for monitoring an operating condition during drilling. A fastener system is provided for securing an erodible ball in a fixed position relative to a flow pathway until a predetermined operating condition is detected by the sensor, and for releasing the erodible ball into the flow pathway to obstruct the flow through at least one bit nozzle.