US4084647A
(en)
*
|
1976-07-01 |
1978-04-18 |
William Lister |
Pneumatic percussion hammer
|
US4067596A
(en)
*
|
1976-08-25 |
1978-01-10 |
Smith International, Inc. |
Dual flow passage drill stem
|
US4079793A
(en)
*
|
1976-10-05 |
1978-03-21 |
Reed Tool Co. |
Exhaust means for percussion tools
|
US4102418A
(en)
*
|
1977-01-24 |
1978-07-25 |
Bakerdrill Inc. |
Borehole drilling apparatus
|
US4274497A
(en)
*
|
1977-04-11 |
1981-06-23 |
Walker-Neer Manufacturing Co., Inc. |
Skirted hammer sub for dual tube drilling
|
ZA7891B
(en)
*
|
1978-01-06 |
1979-08-29 |
Boart Int Ltd |
Down-the-hole drilling
|
DE2816737C3
(de)
*
|
1978-04-18 |
1981-03-19 |
Hans Philipp 3570 Stadtallendorf Walter |
Bohrhammer, Insbesondere Tieflochhammer
|
FR2424408A1
(fr)
*
|
1978-04-24 |
1979-11-23 |
Stenuick Freres |
Taillant de perforation pour marteau pneumatique fond-de-trou
|
FR2432983A1
(fr)
*
|
1978-08-11 |
1980-03-07 |
Commissariat Energie Atomique |
Ensemble de transfert pneumatique d'un materiau pulverulent
|
DE2854461C2
(de)
*
|
1978-12-16 |
1983-03-10 |
Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz |
Versenkbohrhammer
|
US4509606A
(en)
*
|
1980-10-29 |
1985-04-09 |
Walker-Neer Manufacturing Co., Inc. |
Axial return hammer
|
GB8406957D0
(en)
*
|
1984-03-16 |
1984-04-18 |
Ennis M S J |
Hammer
|
GB2170841B
(en)
*
|
1984-03-16 |
1988-03-30 |
Ennis M S J |
Hammer for use in a bore hole and apparatus for use therewith
|
US4694911A
(en)
*
|
1984-07-13 |
1987-09-22 |
Kennedy James D |
Drilling assembly for percussion drilling of deep wells
|
GB8514505D0
(en)
*
|
1985-06-07 |
1985-07-10 |
Weaver & Hurt Ltd |
Rock drills
|
FI863100A7
(fi)
*
|
1985-08-06 |
1987-02-07 |
Inst Gornogo Dela Sibirskogo O |
Rengasmainen paineilmavasara reikien poraamiseksi.
|
GB8611091D0
(en)
*
|
1986-05-07 |
1986-06-11 |
Ennis M S J |
Borehole drill construction
|
US4706764A
(en)
*
|
1986-08-01 |
1987-11-17 |
Ingersoll-Rand Company |
Two piece down hole drill chuck
|
US4921056A
(en)
*
|
1987-04-23 |
1990-05-01 |
Ennis Melvyn S J |
Hammer drills for making boreholes
|
US4921052A
(en)
*
|
1988-03-24 |
1990-05-01 |
Rear Ian G |
Downhole recirculating hammer
|
US5139096A
(en)
*
|
1988-09-22 |
1992-08-18 |
William Lister |
Pneumatic percussion hammers
|
WO1991016521A1
(en)
*
|
1990-04-19 |
1991-10-31 |
Werner Giehl |
Percussive drilling arrangement
|
USRE36002E
(en)
*
|
1990-04-26 |
1998-12-22 |
Sds Digger Tools Pty, Ltd. |
Transmission sleeve for a down hole hammer
|
CA2041000C
(en)
*
|
1990-04-26 |
2005-07-12 |
John Elsby |
Transmission sleeve for a down hole hammer
|
US5090500A
(en)
*
|
1990-11-30 |
1992-02-25 |
Sandvik Rock Tools, Inc. |
Replaceable wear sleeve for percussion drill
|
US5402854A
(en)
*
|
1992-10-06 |
1995-04-04 |
Ingersoll-Rand Company |
Fluid distributor for a debris flushing system in a percussive, fluid-activated apparatus
|
SE9401349D0
(sv)
*
|
1994-04-21 |
1994-04-21 |
Atlas Copco Rocktech Ab |
Foderrör med slagsko
|
SE507651C2
(sv)
*
|
1997-07-02 |
1998-06-29 |
Uniroc Ab |
Sänkborrmaskin med dubbla drivareor för slagkolvens arbetsslag och returslag
|
US6220079B1
(en)
*
|
1998-07-22 |
2001-04-24 |
Safety Liner Systems, L.L.C. |
Annular fluid manipulation in lined tubular systems
|
US6634388B1
(en)
|
1998-07-22 |
2003-10-21 |
Safetyliner Systems, Llc |
Annular fluid manipulation in lined tubular systems
|
DE10257483A1
(de)
*
|
2002-12-10 |
2004-07-01 |
Hilti Ag |
Werkzeugaufnahme für flüssigkeitsgespülte Schlagwerkzeuge
|
CA2873532C
(en)
*
|
2007-01-24 |
2017-04-04 |
J. I. Livingstone Enterprises Ltd. |
Air hammer coring apparatus and method
|
SE539153C2
(sv)
*
|
2008-03-31 |
2017-04-18 |
Center Rock Inc |
Drivkoppling för sänkborr
|
US8302707B2
(en)
*
|
2009-01-28 |
2012-11-06 |
Center Rock Inc. |
Down-the-hole drill reverse exhaust system
|
US8800690B2
(en)
*
|
2008-03-31 |
2014-08-12 |
Center Rock Inc. |
Down-the-hole drill hammer having a reverse exhaust system and segmented chuck assembly
|
US8622152B2
(en)
|
2009-01-28 |
2014-01-07 |
Center Rock Inc. |
Down-the-hole drill hammer having a sliding exhaust check valve
|
USD656974S1
(en)
|
2009-01-28 |
2012-04-03 |
Center Rock Inc. |
Drill bit
|
WO2011078421A1
(ko)
|
2009-12-22 |
2011-06-30 |
(주)한진디엔비 |
천공장치용 에어햄머
|
US20110180330A1
(en)
*
|
2010-01-26 |
2011-07-28 |
Conn Timothy W |
Drilling assembly with underreaming bit and method of use
|
WO2013059878A1
(en)
*
|
2011-10-26 |
2013-05-02 |
Sandvik Intellectual Property Ab |
Reverse circulation hammer spline arrangement improvements
|
CN105804671B
(zh)
*
|
2016-06-03 |
2018-09-18 |
广东顺德孔山重工机械有限公司 |
一种潜孔钻机回转器用的钻杆伸缩式缓冲装置
|
US10316586B1
(en)
*
|
2016-12-14 |
2019-06-11 |
Jaime Andres AROS |
Pressurized fluid flow system for a DTH hammer and normal circulation hammer thereof
|
AU2021106774A4
(en)
*
|
2021-08-19 |
2021-11-18 |
Veracio Ltd. |
Dual tube drill string components
|
CN119393051A
(zh)
*
|
2025-01-03 |
2025-02-07 |
河南省豫西煤田地质勘察有限公司 |
煤层底板巨厚层灰岩水患区域钻进装置及钻进方法
|