[go: up one dir, main page]

EP0821767A4 - Retention means - Google Patents

Retention means

Info

Publication number
EP0821767A4
EP0821767A4 EP96905605A EP96905605A EP0821767A4 EP 0821767 A4 EP0821767 A4 EP 0821767A4 EP 96905605 A EP96905605 A EP 96905605A EP 96905605 A EP96905605 A EP 96905605A EP 0821767 A4 EP0821767 A4 EP 0821767A4
Authority
EP
European Patent Office
Prior art keywords
retention means
retention
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.)
Withdrawn
Application number
EP96905605A
Other languages
German (de)
French (fr)
Other versions
EP0821767A1 (en
Inventor
Ian Graeme Rear
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.)
Individual
Original Assignee
Individual
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 AUPN1847A external-priority patent/AUPN184795A0/en
Priority claimed from AUPN2019A external-priority patent/AUPN201995A0/en
Application filed by Individual filed Critical Individual
Publication of EP0821767A1 publication Critical patent/EP0821767A1/en
Publication of EP0821767A4 publication Critical patent/EP0821767A4/en
Withdrawn legal-status Critical Current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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers

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)
  • Percussive Tools And Related Accessories (AREA)
EP96905605A 1995-03-21 1996-03-20 Retention means Withdrawn EP0821767A4 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AUPN0184/79 1995-03-21
AUPN1847A AUPN184795A0 (en) 1995-03-21 1995-03-21 Retention means
AUPN2019A AUPN201995A0 (en) 1995-03-29 1995-03-29 Retention means - case b
AUPN0201/99 1995-03-29
PCT/AU1996/000153 WO1996029520A1 (en) 1995-03-21 1996-03-20 Retention means

Publications (2)

Publication Number Publication Date
EP0821767A1 EP0821767A1 (en) 1998-02-04
EP0821767A4 true EP0821767A4 (en) 1998-07-01

Family

ID=25644884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96905605A Withdrawn EP0821767A4 (en) 1995-03-21 1996-03-20 Retention means

Country Status (3)

Country Link
EP (1) EP0821767A4 (en)
AR (1) AR001384A1 (en)
WO (1) WO1996029520A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2540951B (en) * 2015-07-31 2017-08-30 Bulroc (Uk) Ltd DTH Hammer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2099533A (en) * 1981-06-01 1982-12-08 Armco Inc Split ring fastenings

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH218705A (en) * 1939-06-07 1941-12-31 Bosch Gmbh Robert Process for the production of a split snap ring for securing the position of a structural part in relation to a cylindrical bolt.
WO1995008690A1 (en) * 1993-09-20 1995-03-30 Ian Graeme Rear Make up system of a down-the-hole hammer
US5390749A (en) * 1994-01-31 1995-02-21 Ingersoll-Rand Company Apparatus for positioning a split retaining ring in a down-hole percussive drill

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2099533A (en) * 1981-06-01 1982-12-08 Armco Inc Split ring fastenings

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9629520A1 *

Also Published As

Publication number Publication date
AR001384A1 (en) 1997-10-22
WO1996029520A1 (en) 1996-09-26
EP0821767A1 (en) 1998-02-04

Similar Documents

Publication Publication Date Title
DE69513693D1 (en) Positions-servo-system
DE59607964D1 (en) Oxymethoxy-3-aryl-pyron-derivate
DE59607241D1 (en) Endotracheal-tubus
DE69608292D1 (en) Audio-synthesizer
DE69606427D1 (en) Hydroformylierungsverfahren
DE69611623D1 (en) Polyurethanelastomere
DE69516545D1 (en) Polyacetalharzzusammensetzung
DE69610843D1 (en) Hydroformylierungsverfahren
DE59608164D1 (en) Cyclohexenonoximether-metallsalze
DE59610991D1 (en) Cyclopeptidderivate
DE59605001D1 (en) Luftreinigungsgerät
DE59602888D1 (en) Breitstreckaggregat
DE59602030D1 (en) Zellige polyurethan-elastomere
DE59602283D1 (en) Inchbremseinrichtung
DE69611833D1 (en) Carbonylierungsreaktionen
DE69610077D1 (en) Sesquiterpenverbindungen
DE59505396D1 (en) Handhobelmaschine
DE59604506D1 (en) Rückkühlsystem
AP9600802A0 (en) Libricant
DE59600830D1 (en) Breitstrahldüse
EP0821767A4 (en) Retention means
DE59604913D1 (en) Carbonylverbindungen
AU129378S (en) TeleChipper
ZA962269B (en) Retention means
AU1105P (en) DALESE Metrosideros excelsus

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19971017

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): ES FR GB IE SE

A4 Supplementary search report drawn up and despatched

Effective date: 19980511

AK Designated contracting states

Kind code of ref document: A4

Designated state(s): ES FR GB IE SE

17Q First examination report despatched

Effective date: 19981201

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19990413