CA2567415A1 - Protected lubricant reservoir for sealed bearing earth boring drill bit - Google Patents
Protected lubricant reservoir for sealed bearing earth boring drill bit Download PDFInfo
- Publication number
- CA2567415A1 CA2567415A1 CA002567415A CA2567415A CA2567415A1 CA 2567415 A1 CA2567415 A1 CA 2567415A1 CA 002567415 A CA002567415 A CA 002567415A CA 2567415 A CA2567415 A CA 2567415A CA 2567415 A1 CA2567415 A1 CA 2567415A1
- Authority
- CA
- Canada
- Prior art keywords
- reservoir
- lubricant reservoir
- drill bit
- sealed bearing
- earth boring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000314 lubricant Substances 0.000 title abstract 2
- 239000012530 fluid Substances 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
- 238000013022 venting Methods 0.000 abstract 1
Landscapes
- Earth Drilling (AREA)
Abstract
A rotary cone rock bit, comprises a bit body including a plurality of legs extending therefrom, each of the legs having an outer surface that includes a leading surface and a trailing surface. a roller cone rotatably supported on each of the legs, a bearing system between each cone and the leg on which it is supported, and a lubricant reservoir in fluid communication with the bearing system. The reservoir can be provided with a wear resistant plug, if desired. In the present bit, the reservoir has at least one opening positioned in either the leg's leading surface, trailing surface, center surface, shoulder surface or some combination of these. Alternatively, the reservoir can be formed inside the bit body, preferably by means of a canister, which can be provided with venting means as desired.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5137397P | 1997-07-01 | 1997-07-01 | |
US60/051,373 | 1997-07-01 | ||
US92586997A | 1997-09-09 | 1997-09-09 | |
US08/925,869 | 1997-09-09 | ||
CA 2240023 CA2240023C (en) | 1997-07-01 | 1998-06-08 | Protected lubricant reservoir for sealed bearing earth boring drill bit |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2240023 Division CA2240023C (en) | 1997-07-01 | 1998-06-08 | Protected lubricant reservoir for sealed bearing earth boring drill bit |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2567415A1 true CA2567415A1 (en) | 1999-01-01 |
CA2567415C CA2567415C (en) | 2008-12-23 |
Family
ID=37663500
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002567415A Expired - Lifetime CA2567415C (en) | 1997-07-01 | 1998-06-08 | Protected lubricant reservoir for sealed bearing earth boring drill bit |
CA002567355A Abandoned CA2567355A1 (en) | 1997-07-01 | 1998-06-08 | Protected lubricant reservoir for sealed bearing earth boring drill bit |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002567355A Abandoned CA2567355A1 (en) | 1997-07-01 | 1998-06-08 | Protected lubricant reservoir for sealed bearing earth boring drill bit |
Country Status (1)
Country | Link |
---|---|
CA (2) | CA2567415C (en) |
-
1998
- 1998-06-08 CA CA002567415A patent/CA2567415C/en not_active Expired - Lifetime
- 1998-06-08 CA CA002567355A patent/CA2567355A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CA2567415C (en) | 2008-12-23 |
CA2567355A1 (en) | 1999-01-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20180608 |