GB0806379D0 - Downhole drilling tool - Google Patents

Downhole drilling tool

Info

Publication number
GB0806379D0
GB0806379D0 GBGB0806379.4A GB0806379A GB0806379D0 GB 0806379 D0 GB0806379 D0 GB 0806379D0 GB 0806379 A GB0806379 A GB 0806379A GB 0806379 D0 GB0806379 D0 GB 0806379D0
Authority
GB
United Kingdom
Prior art keywords
drilling tool
downhole drilling
downhole
tool
drilling
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
Application number
GBGB0806379.4A
Other versions
GB2445321B (en
GB2445321A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pilot Drilling Control Ltd
Original Assignee
Pilot Drilling Control Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB0400892A external-priority patent/GB2410067B/en
Application filed by Pilot Drilling Control Ltd filed Critical Pilot Drilling Control Ltd
Priority to GB0806379A priority Critical patent/GB2445321B/en
Publication of GB0806379D0 publication Critical patent/GB0806379D0/en
Publication of GB2445321A publication Critical patent/GB2445321A/en
Application granted granted Critical
Publication of GB2445321B publication Critical patent/GB2445321B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
    • F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
GB0806379A 2004-01-15 2004-12-17 Downhole drilling tool Expired - Fee Related GB2445321B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0806379A GB2445321B (en) 2004-01-15 2004-12-17 Downhole drilling tool

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0400892A GB2410067B (en) 2004-01-15 2004-01-15 Freewheel
GB0427717A GB2410043B (en) 2004-01-15 2004-12-17 Downhole drilling tool
GB0806379A GB2445321B (en) 2004-01-15 2004-12-17 Downhole drilling tool

Publications (3)

Publication Number Publication Date
GB0806379D0 true GB0806379D0 (en) 2008-05-14
GB2445321A GB2445321A (en) 2008-07-02
GB2445321B GB2445321B (en) 2008-08-13

Family

ID=39495772

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0806379A Expired - Fee Related GB2445321B (en) 2004-01-15 2004-12-17 Downhole drilling tool

Country Status (1)

Country Link
GB (1) GB2445321B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110561623A (en) * 2019-09-10 2019-12-13 旷和明 Special puncher of building engineering

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2004254383B2 (en) * 2003-06-27 2009-11-26 The Charles Machine Works, Inc. Coupling for dual member pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110561623A (en) * 2019-09-10 2019-12-13 旷和明 Special puncher of building engineering

Also Published As

Publication number Publication date
GB2445321B (en) 2008-08-13
GB2445321A (en) 2008-07-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20111217