SE9604669D0 - Borrör - Google Patents
BorrörInfo
- Publication number
- SE9604669D0 SE9604669D0 SE9604669A SE9604669A SE9604669D0 SE 9604669 D0 SE9604669 D0 SE 9604669D0 SE 9604669 A SE9604669 A SE 9604669A SE 9604669 A SE9604669 A SE 9604669A SE 9604669 D0 SE9604669 D0 SE 9604669D0
- Authority
- SE
- Sweden
- Prior art keywords
- valve
- valve seat
- drill pipe
- contact surface
- end pieces
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7854—In couplings for coaxial conduits, e.g., drill pipe check valves
- Y10T137/7856—Valve seat formed on or carried by a coupling element
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Pipe Accessories (AREA)
- Check Valves (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9604669A SE509677C2 (sv) | 1996-12-19 | 1996-12-19 | Borrör innefattande en backventil |
US08/985,004 US6003622A (en) | 1996-12-19 | 1997-12-04 | Drill tube for use in upward rock drilling |
AU48443/97A AU727329B2 (en) | 1996-12-19 | 1997-12-17 | Drill tube |
CA 2225124 CA2225124C (en) | 1996-12-19 | 1997-12-18 | Drill tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9604669A SE509677C2 (sv) | 1996-12-19 | 1996-12-19 | Borrör innefattande en backventil |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9604669D0 true SE9604669D0 (sv) | 1996-12-19 |
SE9604669L SE9604669L (sv) | 1998-06-20 |
SE509677C2 SE509677C2 (sv) | 1999-02-22 |
Family
ID=20405035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9604669A SE509677C2 (sv) | 1996-12-19 | 1996-12-19 | Borrör innefattande en backventil |
Country Status (4)
Country | Link |
---|---|
US (1) | US6003622A (sv) |
AU (1) | AU727329B2 (sv) |
CA (1) | CA2225124C (sv) |
SE (1) | SE509677C2 (sv) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6810973B2 (en) | 2002-02-08 | 2004-11-02 | Hard Rock Drilling & Fabrication, L.L.C. | Steerable horizontal subterranean drill bit having offset cutting tooth paths |
US6814168B2 (en) | 2002-02-08 | 2004-11-09 | Hard Rock Drilling & Fabrication, L.L.C. | Steerable horizontal subterranean drill bit having elevated wear protector receptacles |
US6827159B2 (en) | 2002-02-08 | 2004-12-07 | Hard Rock Drilling & Fabrication, L.L.C. | Steerable horizontal subterranean drill bit having an offset drilling fluid seal |
US6810972B2 (en) | 2002-02-08 | 2004-11-02 | Hard Rock Drilling & Fabrication, L.L.C. | Steerable horizontal subterranean drill bit having a one bolt attachment system |
US6810971B1 (en) | 2002-02-08 | 2004-11-02 | Hard Rock Drilling & Fabrication, L.L.C. | Steerable horizontal subterranean drill bit |
US20170312157A1 (en) * | 2016-04-28 | 2017-11-02 | Anthony Solazzo | Urinal |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2223509A (en) * | 1939-05-24 | 1940-12-03 | Leo F Brauer | Float valve |
US2943639A (en) * | 1956-08-09 | 1960-07-05 | George L Smith | Readily assembled check valve |
US3051196A (en) * | 1958-10-24 | 1962-08-28 | Prec Equipment Co Inc | Check valve |
US3548868A (en) * | 1968-02-14 | 1970-12-22 | Sealol | Check valve with spring assisted flexible auxiliary valve seat |
US4532958A (en) * | 1982-09-30 | 1985-08-06 | Hudson Engineering Company | Check valve having replaceable valve assembly |
US4655248A (en) * | 1985-12-16 | 1987-04-07 | United Technologies Corporation | Check valve |
SE456269B (sv) * | 1987-02-26 | 1988-09-19 | Loevab Loef Och Oestlund Ab | Ventilanordning med backventilfunktion vid rorskarv mellan ror med olika innerdiameter |
SE503367C2 (sv) * | 1993-04-27 | 1996-06-03 | Sandvik Ab | Borrörselement för topphammarborrning |
-
1996
- 1996-12-19 SE SE9604669A patent/SE509677C2/sv not_active IP Right Cessation
-
1997
- 1997-12-04 US US08/985,004 patent/US6003622A/en not_active Expired - Fee Related
- 1997-12-17 AU AU48443/97A patent/AU727329B2/en not_active Ceased
- 1997-12-18 CA CA 2225124 patent/CA2225124C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6003622A (en) | 1999-12-21 |
AU727329B2 (en) | 2000-12-07 |
CA2225124C (en) | 2006-02-07 |
SE509677C2 (sv) | 1999-02-22 |
CA2225124A1 (en) | 1998-06-19 |
SE9604669L (sv) | 1998-06-20 |
AU4844397A (en) | 1998-06-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |