CA1178861A - Marteau piqueur a consommation d'air variable - Google Patents

Marteau piqueur a consommation d'air variable

Info

Publication number: CA1178861A
Authority: CA; Canada
Prior art keywords: chamber; hammer; spacer; piston; drill
Prior art date: 1981-01-22
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

CA000394041A

Other languages

English (en)

Inventor

Dan L. Pillow

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.)

Dresser Industries Inc

Original Assignee

Dresser Industries 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.)

1981-01-22

Filing date

1982-01-13

Publication date

1984-12-04

1982-01-13 Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc

1984-12-04 Application granted granted Critical

1984-12-04 Publication of CA1178861A publication Critical patent/CA1178861A/fr

Status Expired legal-status Critical Current

Links

125000006850 spacer group Chemical group 0.000 claims abstract description 28
239000012530 fluid Substances 0.000 claims description 7
239000011435 rock Substances 0.000 claims description 7
238000005553 drilling Methods 0.000 abstract description 5
230000013011 mating Effects 0.000 abstract description 3
230000002829 reductive effect Effects 0.000 description 5
208000032837 Ring chromosome 16 syndrome Diseases 0.000 description 4
230000000717 retained effect Effects 0.000 description 3
230000035515 penetration Effects 0.000 description 2
238000004140 cleaning Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
230000003028 elevating effect Effects 0.000 description 1
230000004048 modification Effects 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000000284 resting effect Effects 0.000 description 1
230000002441 reversible effect Effects 0.000 description 1
230000000153 supplemental effect Effects 0.000 description 1
238000011144 upstream manufacturing Methods 0.000 description 1

Landscapes

Earth Drilling (AREA)

CA000394041A 1981-01-22 1982-01-13 Marteau piqueur a consommation d'air variable Expired CA1178861A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US22730381A	1981-01-22	1981-01-22
US227,303		1981-01-22

Publications (1)

Publication Number	Publication Date
CA1178861A true CA1178861A (fr)	1984-12-04

Family

ID=22852578

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000394041A Expired CA1178861A (fr)	1981-01-22	1982-01-13	Marteau piqueur a consommation d'air variable

Country Status (2)

Country	Link
AU (1)	AU542647B2 (fr)
CA (1)	CA1178861A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7617889B2 (en)	2005-11-03	2009-11-17	Rockmore International, Inc.	Backhead and drill assembly with backhead

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7794407B2 (en)	2006-10-23	2010-09-14	Bard Access Systems, Inc.	Method of locating the tip of a central venous catheter
WO2011097312A1 (fr)	2010-02-02	2011-08-11	C.R. Bard, Inc.	Appareil et procédé destinés à la navigation d'un cathéter et à la localisation d'une pointe

1982
- 1982-01-05 AU AU79184/82A patent/AU542647B2/en not_active Withdrawn - After Issue
- 1982-01-13 CA CA000394041A patent/CA1178861A/fr not_active Expired

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7617889B2 (en)	2005-11-03	2009-11-17	Rockmore International, Inc.	Backhead and drill assembly with backhead
US8006784B2 (en)	2005-11-03	2011-08-30	Rockmore International, Inc.	Backhead and drill assembly with backhead

Also Published As

Publication number	Publication date
AU542647B2 (en)	1985-02-28
AU7918482A (en)	1982-07-29

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Legal Events

Date	Code	Title	Description
2001-12-05	MKEC	Expiry (correction)
2002-01-13	MKEX	Expiry