06540033 is referenced by 102 patents.

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.

Title
Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations
Application Number
9/783265
Publication Number
6540033 (B1)
Application Date
February 6, 2001
Publication Date
April 1, 2003
Inventor
Chih Lin
Spring
TX, US
Glenn R Zadrapa
Highlands
TX, US
Don Quy Nguyen
Houston
TX, US
Scott Ray Schmidt
The Woodlands
TX, US
Theodore Edward Zaleski Jr
Houston
TX, US
Eric Charles Sullivan
Houston
TX, US
Agent
Melvin A Hunn
US
Assignee
Baker Hughes Incorporated
TX, US
IPC
E21B 7/18
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