GB2134151B - Rotatable cutting tool - Google Patents

Rotatable cutting tool

Info

Publication number
GB2134151B
GB2134151B GB08234396A GB8234396A GB2134151B GB 2134151 B GB2134151 B GB 2134151B GB 08234396 A GB08234396 A GB 08234396A GB 8234396 A GB8234396 A GB 8234396A GB 2134151 B GB2134151 B GB 2134151B
Authority
GB
United Kingdom
Prior art keywords
cutting tool
rotatable cutting
rotatable
tool
cutting
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.)
Expired
Application number
GB08234396A
Other versions
GB2134151A (en
Inventor
Kenneth John Vine
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.)
CEMEMTATION GROUND ENGINEERING
Original Assignee
CEMEMTATION GROUND ENGINEERING
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
Application filed by CEMEMTATION GROUND ENGINEERING filed Critical CEMEMTATION GROUND ENGINEERING
Priority to GB08234396A priority Critical patent/GB2134151B/en
Publication of GB2134151A publication Critical patent/GB2134151A/en
Application granted granted Critical
Publication of GB2134151B publication Critical patent/GB2134151B/en
Expired legal-status Critical Current

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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/325—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools the cutter being shifted by a spring mechanism

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
GB08234396A 1982-12-02 1982-12-02 Rotatable cutting tool Expired GB2134151B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08234396A GB2134151B (en) 1982-12-02 1982-12-02 Rotatable cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08234396A GB2134151B (en) 1982-12-02 1982-12-02 Rotatable cutting tool

Publications (2)

Publication Number Publication Date
GB2134151A GB2134151A (en) 1984-08-08
GB2134151B true GB2134151B (en) 1986-01-02

Family

ID=10534688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08234396A Expired GB2134151B (en) 1982-12-02 1982-12-02 Rotatable cutting tool

Country Status (1)

Country Link
GB (1) GB2134151B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991005919A1 (en) * 1989-10-16 1991-05-02 Moskovskoe Nauchno-Proizvodstvennoe Obiedinenie Po Mekhanizirovannomu Stroitelnomu Instrumentu I Otdelochnym Mashinam Device for making holes in the ground
US20040195006A1 (en) * 2003-04-04 2004-10-07 Groves William G. Under-reamer tool
WO2009116963A1 (en) * 2008-03-17 2009-09-24 Attaya James S Methods and apparatus for expanding the diameter of a borehole

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB317649A (en) * 1928-08-31 1929-08-22 August Wolfsholz Improved means for facilitating the sinking of caissons and like tubular bodies
GB325044A (en) * 1928-12-10 1930-02-13 Ernst Lorenz Method of and devices for making concrete piles

Also Published As

Publication number Publication date
GB2134151A (en) 1984-08-08

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee