IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0783265
(2001-02-06)
|
|
발명자
/ 주소 |
- Sullivan, Eric Charles
- Zaleski, Jr., Theodore Edward
- Schmidt, Scott Ray
- Nguyen, Don Quy
- Zadrapa, Glenn R.
- Lin, Chih
|
| 출원인 / 주소 |
- Baker Hughes Incorporated
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
101 인용 특허 :
0 |
초록
▼
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
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.
대표청구항
▼
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
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. ste recovery area. rammer; US-4902044, 19900200, Williams et al., 166/340; US-4919454, 19900400, Caulfield et al.; US-5020942, 19910600, Pallini; US-5069288, 19911200, Singeetham; US-5163514, 19921100, Jennings; US-5168933, 19921200, Pritchard et al.; US-5174376, 19921200, Singeetham; US-5222560, 19930600, Brammer et al.; US-5255743, 19931000, Adam et al., 166/345; US-5255746, 19931000, Bridges, 166/348; US-5259459, 19931100, Valka; US-5279369, 19940100, Brammer; US-5299642, 19940400, Nelson et al.; US-5503230, 19960400, Osborne et al.; US-5566761, 19961000, Pallini et al.; US-5638903, 19970600, Kent, 166/208; US-5775427, 19980700, Skeels et al.; US-6035938, 20000300, Watkins; US-6070669, 20000600, Radi et al., 166/341; US-6138762, 20001000, Sweeney et al., 166/338; US-6234252, 20010500, Pallini et al.; US-6260624, 20010600, Pallini et al.; US-6293343, 20010900, Pallini et al., 166/345
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