NL103683C - - Google Patents
Info
- Publication number
- NL103683C NL103683C NL103683DA NL103683C NL 103683 C NL103683 C NL 103683C NL 103683D A NL103683D A NL 103683DA NL 103683 C NL103683 C NL 103683C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/033—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member spring-loaded
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1714459A GB892950A (en) | 1959-05-20 | 1959-05-20 | Drill pipe float valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL103683C true NL103683C (en) |
Family
ID=10090061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL103683D NL103683C (en) | 1959-05-20 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB892950A (en) |
| NL (1) | NL103683C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT380082B (en) * | 1984-01-13 | 1986-04-10 | Hoerbiger Ventilwerke Ag | DEVICE FOR REGULATING THE FLOW RATE OF ROTATIONAL COMPRESSORS |
| GB8501806D0 (en) * | 1985-01-24 | 1985-02-27 | Simon Hartley | Circular flap valve with buffer |
| DE3517139C1 (en) * | 1985-05-11 | 1986-02-13 | Bergbau-Bohrgesellschaft Rhein-Ruhr mbH, 4350 Recklinghausen | Method and device for reducing the hook load of a drill pipe |
| JP6551001B2 (en) * | 2015-07-21 | 2019-07-31 | 国立研究開発法人海洋研究開発機構 | Float valve sub |
| CN113882820B (en) * | 2021-12-08 | 2022-02-22 | 西南石油大学 | Blowout prevention valve in drilling tool |
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0
- NL NL103683D patent/NL103683C/xx active
-
1959
- 1959-05-20 GB GB1714459A patent/GB892950A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB892950A (en) | 1962-04-04 |