GB1462742A

GB1462742A – Rotary bore hole air hammer
– Google Patents

GB1462742A – Rotary bore hole air hammer
– Google Patents
Rotary bore hole air hammer

Info

Publication number
GB1462742A

GB1462742A
GB1978374A
GB1978374A
GB1462742A
GB 1462742 A
GB1462742 A
GB 1462742A
GB 1978374 A
GB1978374 A
GB 1978374A
GB 1978374 A
GB1978374 A
GB 1978374A
GB 1462742 A
GB1462742 A
GB 1462742A
Authority
GB
United Kingdom
Prior art keywords
keys
anvil
disclosed
housing
design
Prior art date
1973-08-27
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
GB1978374A
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.)

Bakerdrill Inc

Original Assignee
Bakerdrill Inc
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.)
1973-08-27
Filing date
1974-05-06
Publication date
1977-01-26

1974-05-06
Application filed by Bakerdrill Inc
filed
Critical
Bakerdrill Inc

1977-01-26
Publication of GB1462742A
publication
Critical
patent/GB1462742A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

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

E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings

E21B17/02—Couplings; joints

E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like

E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers

E21B17/076—Telescoping joints for varying drill string lengths; Shock absorbers between rod or pipe and drill bit

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

E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings

E21B17/02—Couplings; joints

E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like

E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers

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

E21B4/00—Drives for drilling, used in the borehole

E21B4/06—Down-hole impacting means, e.g. hammers

E21B4/14—Fluid operated hammers

Abstract

1462742 Percussion drills BAKERDRILL Inc 6 May 1974 [27 Aug 1973] 19783/74 Heading B4C [Also in Division E1] The percussion drill disclosed is similar to that disclosed in Specification 1,445,502 except for differences in (a) the design of the keys 28 connecting the anvil section 18 of the bit drive head 15 carried by housing 16 and (b) the design of the supply and valve tube 78. In the case of the keys, these have parallel sides 27a normal to a tangent 181 to the anvil and are received in flat-bottom grooves 27 and windows 29 centred on lines parallel to but offset from a radial line R 2 , the arrangement being intended to prevent the keys from being urged outwards against the housing and to provide a larger bearing area for the keys against the anvil in the drilling direction D, than in the opposite direction. In the case of the tube 78, this is shorter than that disclosed in Specification 1,445,502 and omits the lower groove 88d so that it provides for venting of the space below the hammer piston, when the bit is clear of the bottom of the hole, rather than for isolation of that space.

GB1978374A
1973-08-27
1974-05-06
Rotary bore hole air hammer

Expired

GB1462742A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US392076A

US3866746A
(en)

1973-08-27
1973-08-27
Rotary bore hole air hammer drive mechanism

Publications (1)

Publication Number
Publication Date

GB1462742A
true

GB1462742A
(en)

1977-01-26

Family
ID=23549157
Family Applications (2)

Application Number
Title
Priority Date
Filing Date

GB3781276A
Expired

GB1462743A
(en)

1973-08-27
1974-05-06
Rotary bore hole air hammer

GB1978374A
Expired

GB1462742A
(en)

1973-08-27
1974-05-06
Rotary bore hole air hammer

Family Applications Before (1)

Application Number
Title
Priority Date
Filing Date

GB3781276A
Expired

GB1462743A
(en)

1973-08-27
1974-05-06
Rotary bore hole air hammer

Country Status (5)

Country
Link

US
(1)

US3866746A
(en)

JP
(1)

JPS5045702A
(en)

CA
(1)

CA1014143A
(en)

GB
(2)

GB1462743A
(en)

ZA
(1)

ZA742741B
(en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4030554A
(en)

*

1975-07-07
1977-06-21
Bakerdrill, Inc.
Bore hole airhammer and anvil bit

US4054180A
(en)

*

1976-02-09
1977-10-18
Reed Tool Company
Impact drilling tool having a shuttle valve

ZA7891B
(en)

*

1978-01-06
1979-08-29
Boart Int Ltd
Down-the-hole drilling

FR2424408A1
(en)

*

1978-04-24
1979-11-23
Stenuick Freres

PERFORATION SIZE FOR PNEUMATIC BOTTOM-OF-HOLE HAMMER

ZA795944B
(en)

*

1978-11-10
1980-11-26
Halifax Tool Co Ltd
Connection of rod-like components

US4530408A
(en)

*

1983-03-28
1985-07-23
Toutant Roland J
Porting system for pneumatic impact hammer

FI70625C
(en)

*

1984-07-03
1986-09-24
Tampella Oy Ab

KOPPLINGSANORDNING FOER EN BORRNACKE FOER SLAGBORRMASKIN

SE8501698L
(en)

*

1985-04-04
1986-10-05
Santrade Ltd

DRILL BIT

SE8900473L
(en)

*

1989-02-13
1990-08-14
Sandvik Ab

DRILL BIT

US5263899A
(en)

*

1990-06-12
1993-11-23
Hitachi Construction Machinery Co., Ltd.
Cylindrical telescopic kelly-bar apparatus

NO314053B1
(en)

*

1999-12-28
2003-01-20
Norske Stats Oljeselskap

Torque coupling for use in drill string

US6808455B1
(en)

*

2000-05-03
2004-10-26
Michael Solorenko
Torsional shock absorber for a drill string

GB2395158B
(en)

*

2002-11-14
2005-11-16
Black & Decker Inc
Tool holder for a rotary hammer

US7438140B2
(en)

*

2006-01-27
2008-10-21
Exhaust Technologies, Inc.
Shock attenuating device for a rotary impact tool

US20070289760A1
(en)

*

2006-06-16
2007-12-20
Exhaust Technologies, Inc.
Shock attenuating coupling device and rotary impact tool

JP4539659B2
(en)

2007-01-25
2010-09-08
ソニー株式会社

Fan motor device and electronic device

US20110180330A1
(en)

*

2010-01-26
2011-07-28
Conn Timothy W
Drilling assembly with underreaming bit and method of use

Family Cites Families (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3606930A
(en)

*

1969-10-06
1971-09-21
Baker Oil Tools Inc
Down-hole drilling hammer

US3630292A
(en)

*

1970-03-09
1971-12-28
Meta Luella Vincent
Vibratory hammer drill

US3612191A
(en)

*

1970-03-11
1971-10-12
Leo Andrew Martini
Percussion drilling tool

1973

1973-08-27
US
US392076A
patent/US3866746A/en
not_active
Expired – Lifetime

1974

1974-04-30
ZA
ZA00742741A
patent/ZA742741B/en
unknown

1974-05-06
CA
CA 199062
patent/CA1014143A/en
not_active
Expired

1974-05-06
GB
GB3781276A
patent/GB1462743A/en
not_active
Expired

1974-05-06
GB
GB1978374A
patent/GB1462742A/en
not_active
Expired

1974-05-11
JP
JP49052763A
patent/JPS5045702A/ja
active
Pending

Also Published As

Publication number
Publication date

JPS5045702A
(en)

1975-04-24

AU7056974A
(en)

1976-01-08

ZA742741B
(en)

1975-04-30

CA1014143A
(en)

1977-07-19

GB1462743A
(en)

1977-01-26

US3866746A
(en)

1975-02-18

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Legal Events

Date
Code
Title
Description

1977-06-10
PS
Patent sealed [section 19, patents act 1949]

1980-01-03
PCNP
Patent ceased through non-payment of renewal fee

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