WO2004031530A1 - A down-the hole hammer - Google Patents
A down-the hole hammer Download PDFInfo
- Publication number
- WO2004031530A1 WO2004031530A1 PCT/IE2003/000132 IE0300132W WO2004031530A1 WO 2004031530 A1 WO2004031530 A1 WO 2004031530A1 IE 0300132 W IE0300132 W IE 0300132W WO 2004031530 A1 WO2004031530 A1 WO 2004031530A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inner cylinder
- distributor
- wear sleeve
- air
- tool
- Prior art date
Links
- 230000000295 complement effect Effects 0.000 claims abstract description 10
- 238000009527 percussion Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000000523 sample Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
Definitions
- the present invention relates to "down-the-hole" hammers or fluid-operated percussion drill tools operated by a supply of compressed air.
- Some designs of conventional down-the-hole hammers and fluid-operated percussion drill tools comprise an external cylinder or outer wear sleeve, within which is mounted an inner cylinder which in turn engages with a backhead assembly.
- a sliding reciprocating piston co-operates with the inner cylinder and backhead assembly, which when air pressure is supplied through the backhead assembly, acts with a percussive effect on a drill bit retained within a chuck on the outer wear sleeve.
- the inner cylinder is effectively suspended within the outer wear sleeve by means of a compressible retaining ring, such as a circlip, which has to be slid up the inner cylinder so as to seat against a shoulder or lip at one end thereof, being compressed when the inner cylinder is dropped down within the outer wear sleeve, and then expanding outwardly into a groove or shoulder formed on the inner diameter of the outer wear sleeve with a snap action.
- a compressible retaining ring such as a circlip
- EP1004744A discloses a segmented ring mounting for retaining the inner cylinder within the outer wear sleeve in a fluid-operated percussion drill tool, such as a down-the-hole hammer.
- the retaining ring seats the smaller diameter inner cylinder within the larger diameter outer wear sleeve.
- the outer wear sleeve is formed with a groove cut on its inside diameter, or a shoulder for seating the retaining ring against a lip of the inner cylinder.
- the ring is capable of radial compression and expansion so as to expand radially into the seating groove or shoulder for retaining the components one within the other in use.
- the retaining ring comprises at least three segments, which when touching end to end form a complete circle, and an expansible O-ring, for holding the segments together but allowing the segments to expand radially and move apart by sufficient amount so as to seat the segments in the groove or against the shoulder.
- the inner cylinder of EP1004744A is integral to the porting of the hammer.
- the piston runs on the inner diameter of the inner cylinder and also on the inner diameter of the outer wear sleeve. It is essential that the fit between the outer diameter of the inner cylinder and the bore of the outer wear sleeve be a tight/close fit to ensure optimum alignment of the two bores. This means that the clearance and hence the efficiency of the hammer is optimised because the operation of the hammer relies on a partial seal between the piston and the top and bottom chambers, i.e. the tighter the clearance the greater the energy (within reason).
- EP1004744A effective operation relies on a difference in wear sleeve bore diameter above and below the seating ring groove. This means the usable diameter for the piston, and thus the energy, is reduced. This is because the inner diameter of the wear sleeve above the seating ring has to be larger than below to ensure that the seating ring is located in position. This results in an effective reduction in the cross-sectional diameter of the piston, which reduces the force on the piston.
- Other manufacturers have in the past made the inner cylinder as part of a threaded component which screws into the outer wear sleeve. The disadvantage of this is that the hammer wears externally and in many cases it is rebuilt by replacing all external components. This would obviously be extremely expensive in the above scenario.
- the inner cylinder is mounted within the outer wear sleeve by means of a compressible retaining ring, such as a circlip, which is expanded outwardly to seat into the groove or shoulder formed on the inner diameter of the outer wear sleeve.
- a compressible retaining ring such as a circlip
- the outer wear sleeve of down-the-hole hammers is subject to very strong abrasive forces when in use causing significant wear of, and removal of metal from, the outer sleeve. This weakens the outer wear sleeve to the point where it has to be replaced.
- the prior art hammers described the provision of circumferential seating grooves for circlips, seating rings and the like, in the inner face of the wear sleeve reduce the wear thickness of the outer sleeve. This means that the outer wear sleeve has to be replaced more quickly than would be the case if the wear sleeve contained no more grooves.
- the invention provides a fluid-operated percussion drill tool, in particular a down-the-hole hammer, comprising an external cylindrical outer wear sleeve, an inner cylinder mounted co-axially within the outer wear sleeve, a sliding piston mounted for reciprocating movement within the inner cylinder and the outer wear sleeve, to strike a hammer bit mounted at the lower end of the outer wear sleeve, characterised in that the inner cylinder is formed with an inwardly-directed abutment which in the assembled tool is clamped between a complementary engagement means and a locking means such that the inner cylinder is rigidly mounted and held in the drill tool assembly relative to the outer wear sleeve.
- an elongate cylindrical air distributor is positioned within the hammer assembly, and a lower end of the air distributor is positioned substantially concentrically within the upper end of the inner cylinder and an abutment on the air distributor engages the underside of a complementary abutment on the inner cylinder.
- the top end of the outer wear sleeve is screw-threadably engaged with the lower end of an annular air distributor mount, and the top end of the inner cylinder abuts the lower end of the distributor mount such that the inner cylinder is rigidly mounted in the drill assembly relative to the outer wear sleeve when a top locking member is threadably mounted onto the air distributor.
- the air distributor is threadably engaged at its upper end with a top locking member which abuts the top of the air distributor mount.
- the inner cylinder is rigidly held relative to the outer wear sleeve.
- a mounting groove for the inner cylinder within the outer wear sleeve which can be a weak point in the assembly.
- Figure 1 is a sectional side elevation of a first embodiment of a down-the-hole hammer of the invention, showing the piston in the strike position;
- Figure 2 is a sectional side elevation of the down-the-hole hammer of Figure 1, showing the piston in the top of stroke position;
- Figure 3 is a sectional side elevation of the top part of the hammer of Figure 1 to a larger scale;
- Figure 4 is a sectional side elevation, to an enlarged scale, showing a detail of Figure 3;
- Figure 5 is a cross-sectional plan view of the down-the-hole hammer of Figure 1, on the line C-C of Figure 3;
- Figure 6 is a cross-sectional plan view of the down-the-hole hammer of Figure 1, on the line B-B of Figure 3;
- Figure 7 is a cross-sectional plan view of the down-the-hole hammer of Figure 1, on the line D-D of Figure 3;
- Figure 8 is a cross-sectional plan view of the down-the-hole hammer of Figure 1, on the line E-E of Figure 3;
- Figure 9 is a cross-sectional plan view of the down-the-hole hammer of Figure 1, on the line F-F of Figure 3;
- Figure 10 is a sectional side elevation of a second embodiment of a down-the hole hammer of the invention, showing the piston in the strike position;
- Figure 11 is sectional side elevation of the top part of the hammer of Figure 10 to a larger scale.
- a first embodiment of a down-the- hole hammer of the invention comprises an external cylindrical outer wear sleeve 10.
- An inner cylinder 9 is mounted co-axially within the outer wear sleeve 10.
- a sliding piston 11 is mounted for reciprocating movement within the inner cylinder 9 and the outer wear sleeve 10, to strike a hammer bit 36 mounted for sliding movement in a chuck 41 located at the forward end of the outer wear sleeve 10, in well known manner.
- a top locking member 1 is screw-threadably mounted on an annular air distributor 3.
- Air distributor 3 is fitted concentrically through inner cylinder 9 and a distributor mount 2 and when assembled an outwardly-directed annular flange 38 on the lower end of air distributor 3 abuts the underside of an inwardly-directed annular shoulder 15 in inner cylinder 9.
- the distributor mount 2 is substantially cylindrical and open at both ends.
- the mount 2 has an upper part 2a having an outer diameter which is the same as the outer diameter of the outer wear sleeve 10, such that when the mount 2 is engaged with the wear sleeve (as described below) the outer cylindrical wall of the mount 2 is flush with the outer wall of the wear sleeve 10.
- the mount 2 has a lower part 2b of reduced diameter which fits within the top end of the wear sleeve 10, and is screw-threadably engaged with the inner wall of the wear sleeve 10, by means of screw threads 39 (see also Fig. 8).
- the transition between the upper and lower parts of the distributor mount 2 is defined by a downwardly facing annular shoulder 23, against which the top annular rim of the wear sleeve 10 abuts, and is locked in place when the mount 2 is fully engaged with the wear sleeve 10.
- the bottom of the top locking member 1 has a flat annular rim 12 which engages a complementary flat shoulder 13 on the top end of the distributor mount 2.
- the inner cylinder 9 is thus effectively locked between a shoulder 13 (between top locking member 1 and mount 2) and shoulder 15 (between air distributor 3 and inner cylinder 9). Shoulder 15 may be tapered if required.
- the inner cylinder 9, at its upper end, has an inwardly extending annular shoulder or flange 14 which is rigidly held between the shoulder 15 and the lower end of the distributor mount 2, when the distributor mount 2 has been screwed into position in the top end of the wear sleeve 10, and the top locking member 1 has been screwed on to the air distributor.
- the top-locking member 1 is screwed down, by screw-threadably engaging it with the top of the air-distributor 3, this acts to pull the air-distributor 3 upwardly against the shoulder 15, and in turn pulls the inner cylinder 9 upwardly against the shoulder 14.
- the whole assembly then locks down on shoulder 13.
- air distributor 3 When screw engaging top locking member 1 to air distributor 3, air distributor 3 is prevented from turning by means of dowels 8 positioned between mount 2 and air distributor 3.
- An annular circlip 7 (see Figs. 3 and 4) is positioned in a chamber 24 formed between locking member 1 and mount 2 and a groove 25 machined on air distributor 3. The circlip 7 serves to retain air distributor 3 loosely in position when assembling the hammer.
- the air distributor 1 may be provided with external flats (flat surface) which mate with complementary flats milled internally in the distributor mount 2.
- the fit must be as close to size for size as possible. Due to tolerance restrictions this means that the fit could be a very close sliding fit, a size for size fit, or a slight interference fit.
- the efficiency of the hammer is partly dependent upon the clearance between the piston 11 and the wear sleeve 10, because the sliding contact between the piston 11 and the inner diameter of the wear sleeve 10 acts as a pneumatic seal. The clearance between these parts is of the order of 0.1 mm. It will be appreciated that the piston 11 is running in the bore of the wear sleeve 10 at the lower end of its stroke (see Fig. 1) and runs in the bore of the inner cylinder 9 at the top of the stroke (see Fig.
- the clearance is of the order of 0.1 mm. It is also important to ensure that the bore of the inner cylinder 9 is concentric with the bore of the outer wear sleeve 10, and that there is no sideways (i.e. radial) movement. This is achieved by having the inner cylinder 9 as a very snug, or interference, fit within the bore of the outer sleeve 10.
- the tolerance on the bore of the outer wear sleeve 10 relative to the piston 11 is about 20 microns and a tolerance of about 10 microns in the outer diameter of the inner cylinder 9, relative to the outer diameter of the piston 11.
- the clearance between these parts should be in the range of 0.11 mm and 0.14 mm. If the clearance is greater than about 0.14 mm there is a loss of efficiency of the hammer because compressed air bypasses the piston.
- the mount 2 is screw-threadably engaged with the top of wear sleeve 10 by means of screw threads 39 (see Figs. 3 and 8) which are cut into the inner face of the wear sleeve 10.
- the axial depth of cut of the screw thread 39 is kept to a minimum to minimise the stress on the wear sleeve.
- the minimum thread depth would increase. In the case of 3" and 4" hammers the minimum depth could be in the range of 1.0 to 1.4 mm. On the larger sizes, e.g. 8", this minimum depth could be in the range of 1.6mm to 2.0mm.
- the bottom end of the hammer is assembled first.
- the hammer is then placed upright.
- the piston 11 is placed into the wear sleeve 10.
- the air distributor 3 is placed into the wear sleeve 10 such that the probe 6 is sitting within piston 11.
- the inner cylinder 9 is pushed into the wear sleeve 10.
- the distributor mount 2 is screwed into the wear sleeve 10.
- the assembly is then tipped on end so that distributor 3 falls down through mount 2 Where the dowels 8 are used these are assembled, and an O-ring is placed on distributor 3.
- the check valve 4 and a spring are put in position.
- the top locking member 1 is then screwed onto the end of distributor 3.
- the air distributor 3 is inserted into inner cylinder 9 (the probe 6 has already been inserted in air distributor 3).
- the distributor mount 2 is placed over air distributor 3.
- Dowels 8 are inserted in position in grooves 26 in distributor mount 2, and complementary grooves 27 in air distributor 3 (see Fig. 6). Once the dowels are in place the air distributor 3 cannot rotate.
- the circlip 7 is assembled in groove 25 on air distributor 3 (see Figs. 3 and 4). If the assembly at this stage is stood on inner cylinder 9, then air distributor 3 can fall as far as circlip 7 allows it. In this position circlip 7 is in groove 24 (in distributor mount 2) and cannot come out.
- the assembly can be inserted into wear sleeve 10 by applying force until the distributor mount 2 is in position to screw into wear sleeve 10.
- the inner cylinder 9 will be gradually pushed into position.
- the top locking member 1 is screwed to air distributor 3 by screw threads 42 (see Fig. 7).
- the inner cylinder 9 is held securely in position, and circlip 7 has pulled up in space 24 to a top position.
- the function of the circlip 7 is to prevent the air distributor 3 from falling down into the hammer assembly before the locking member 1 is in place.
- the air distributor 3 is firmly held in position and the circlip 7 becomes redundant.
- Fig. 3 compressed air is supplied through top locking member 1 and forces check valve 4 open by pushing down on a compression spring 5.
- the compressed air is then supplied through an annular chamber 16 formed between air distributor 3 and probe 6 (see Figs. 3 and 7).
- the air then passes through ports 17 in air distributor 3 and into four chambers 18 (see Figs. 3 and 8), which are segmental in plan, and are formed between distributor mount 2 and air distributor 3. From there the compressed air passes down through ports 19 in inner cylinder 9 and into the segmentally-shaped chambers 20 (see Fig. 9) between the inner cylinder 9 and the wear sleeve 10. From here the air is supplied through ports 21 in the inner cylinder 9.
- FIG. 10 A second embodiment of the down-the hole hammer is now described with reference to Figures 10 and 11 of the drawings.
- This embodiment is substantially similar in construction and operation to the first embodiment of Figures 1 to 9, and like reference numerals denote like parts. It has been found in use of the first embodiment that there is a risk that the distributor mount 2 may crack if excessive force is applied to it from the top locking member 1 due to torqueing up of the assembly in operation. This risk may be avoided by providing a stop for the downward movement of the top locking member 1 on the top end of the air distributor 3.
- the stop is provided by means of an annular flat shoulder 50 on the inner surface of the top locking member 1, which abuts the top flat annular end 51 of the air-distributor 3, when the inner cylinder 9 is locked in position.
- the locking is achieved, by arranging the length tolerances to be such that, as the inner cylinder 9, is locked, there is a small gap between the end 51 of the air-distributor 3 and shoulder 50. As the hammer tightens due to applied torque in operation, this gap is closed.
- a compression ring (not shown) may be positioned between the end 51 and the shoulder 50 which absorbs forces as the assembly tightens. This also makes up for variation in lengths due to tolerances.
- the length tolerances referred to are the length of distributor 3 from end 51 to shoulder 15; the length of inner cylinder 9 from shoulder 15 to the top end 14 of the inner cylinder; the overall length of mount 2, and the length from shoulder 12 on top locking member 1 to shoulder 50. These lengths are chosen to achieve a small gap between the shoulder 50 and the flat end 51. As explained about, this gap closes in operation of the hammer. If it is not desired to be restricted to tight length tolerances then a compression ring may be inserted between shoulder 50 and the flat end 51 as explained above.
- the air distributor 3 is all in one piece which improves the strength of the assembly.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Percussive Tools And Related Accessories (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Finger-Pressure Massage (AREA)
- Electrophonic Musical Instruments (AREA)
- Surgical Instruments (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002500949A CA2500949A1 (en) | 2002-10-04 | 2003-09-30 | A down-the hole hammer |
EP03755670A EP1549819B1 (en) | 2002-10-04 | 2003-09-30 | A down-the hole hammer |
US10/529,614 US20060000646A1 (en) | 2002-10-04 | 2003-09-30 | Down-the hole hammer |
AU2003273513A AU2003273513A1 (en) | 2002-10-04 | 2003-09-30 | A down-the hole hammer |
DE60304593T DE60304593D1 (en) | 2002-10-04 | 2003-09-30 | HOLE HAMMER |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IES20020794 | 2002-10-04 | ||
IE20020794A IES20020794A2 (en) | 2002-10-04 | 2002-10-04 | A down-the-hole hammer |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004031530A1 true WO2004031530A1 (en) | 2004-04-15 |
Family
ID=27638011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IE2003/000132 WO2004031530A1 (en) | 2002-10-04 | 2003-09-30 | A down-the hole hammer |
Country Status (9)
Country | Link |
---|---|
US (1) | US20060000646A1 (en) |
EP (1) | EP1549819B1 (en) |
AT (1) | ATE323210T1 (en) |
AU (1) | AU2003273513A1 (en) |
CA (1) | CA2500949A1 (en) |
DE (1) | DE60304593D1 (en) |
IE (1) | IES20020794A2 (en) |
WO (1) | WO2004031530A1 (en) |
ZA (1) | ZA200502866B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006008723A2 (en) * | 2004-07-16 | 2006-01-26 | Minroc Technical Promotions Limited | A down-the-hole hammer |
US7617889B2 (en) | 2005-11-03 | 2009-11-17 | Rockmore International, Inc. | Backhead and drill assembly with backhead |
US7735584B2 (en) * | 2005-09-20 | 2010-06-15 | Minroc Technical Promotions Limited | Percussion hammer for enlarging drilled holes |
WO2011023829A1 (en) | 2009-08-31 | 2011-03-03 | Minroc Technical Promotions Limited | A drill bit assembly for fluid-operated percussion drill tools |
US7975784B2 (en) * | 2006-01-04 | 2011-07-12 | Minroc Technical Promotions Limited | Drill bit assembly for fluid-operated percussion drill tools |
WO2012049331A2 (en) | 2010-10-15 | 2012-04-19 | Minroc Technical Promotions Limited | A down-the-hole hammer |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9068399B2 (en) | 2006-10-20 | 2015-06-30 | Drillroc Pneumatic Pty Ltd | Down-the-hole hammer drill |
EA017936B1 (en) * | 2006-10-20 | 2013-04-30 | Дриллрок Пнеуматик Пти Лтд. | Down-the-hole hammer drill |
US7992652B2 (en) * | 2009-02-05 | 2011-08-09 | Atlas Copco Secoroc Llc | Fluid distributor cylinder for percussive drills |
KR101092873B1 (en) | 2009-11-05 | 2011-12-15 | 주식회사 에버다임락툴 | A ground drilling hammer and its driving process |
US9016403B2 (en) * | 2012-09-14 | 2015-04-28 | Drillco Tools S.A. | Pressurized fluid flow system having multiple work chambers for a down-the-hole drill hammer and normal and reverse circulation hammers thereof |
EP2873489B1 (en) * | 2013-11-13 | 2018-10-24 | Sandvik Mining and Construction Oy | Impact device and method of dismounting the same |
CN106150345A (en) * | 2016-08-29 | 2016-11-23 | 山东天瑞重工有限公司 | The well air distribution system of fast energy-saving down-hole hammer |
US10533963B2 (en) * | 2017-01-09 | 2020-01-14 | Mobiosense Corp. | Biosensor device |
CL2017001018A1 (en) * | 2017-04-25 | 2017-12-15 | Drillco Tools S A | Bottom Hammer Head Assembly |
CN107217982B (en) * | 2017-07-11 | 2019-03-05 | 中煤科工集团西安研究院有限公司 | The multistage deslagging air screw motor of underground coal mine drilling |
CN108590608B (en) * | 2018-01-17 | 2019-03-12 | 大庆市天德忠石油科技有限公司 | Downhole intelligent distributor |
CN108286424B (en) * | 2018-01-17 | 2018-11-06 | 大庆市天德忠石油科技有限公司 | Automatically controlled distributor |
US11846159B2 (en) * | 2020-07-14 | 2023-12-19 | Terelion, Llc | Integrated retaining ring and bushing |
CN113585960B (en) * | 2021-08-05 | 2023-11-21 | 重庆大学 | Central rotary valve type hydraulic impactor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5944117A (en) * | 1997-05-07 | 1999-08-31 | Eastern Driller's Manufacturing Co., Inc. | Fluid actuated impact tool |
WO1999067065A1 (en) * | 1998-06-22 | 1999-12-29 | Azuko Pty. Ltd. | A component mounting method and apparatus for a percussion tool |
Family Cites Families (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3606930A (en) * | 1969-10-06 | 1971-09-21 | Baker Oil Tools Inc | Down-hole drilling hammer |
US4627445A (en) * | 1985-04-08 | 1986-12-09 | Garid, Inc. | Glucose medical monitoring system |
US4815843A (en) * | 1985-05-29 | 1989-03-28 | Oerlikon-Buhrle Holding Ag | Optical sensor for selective detection of substances and/or for the detection of refractive index changes in gaseous, liquid, solid and porous samples |
US4702261A (en) * | 1985-07-03 | 1987-10-27 | Sherwood Medical Company | Biopsy device and method |
US4711250A (en) * | 1986-09-09 | 1987-12-08 | Gilbaugh Jr James H | Hand-held medical syringe actuator device |
IT1231916B (en) * | 1989-05-29 | 1992-01-15 | Ampliscientifica S R L | WEARABLE ARTIFICIAL PANCREAS |
US5354537A (en) * | 1992-04-27 | 1994-10-11 | Akzo N.V. | Piercing and sampling probe |
US5241969A (en) * | 1992-06-10 | 1993-09-07 | Carson Jay W | Controlled and safe fine needle aspiration device |
US5582184A (en) * | 1993-10-13 | 1996-12-10 | Integ Incorporated | Interstitial fluid collection and constituent measurement |
US5591139A (en) * | 1994-06-06 | 1997-01-07 | The Regents Of The University Of California | IC-processed microneedles |
US5575403A (en) * | 1995-01-13 | 1996-11-19 | Bayer Corporation | Dispensing instrument for fluid monitoring sensors |
FR2733745B1 (en) * | 1995-05-02 | 1997-07-04 | Asulab Sa | IMPROVED APPARATUS FOR THE DISTRIBUTION OF SUCCESSIVE AREAS OF A CONSUMABLE BAND |
US5510266A (en) * | 1995-05-05 | 1996-04-23 | Bayer Corporation | Method and apparatus of handling multiple sensors in a glucose monitoring instrument system |
US5701181A (en) * | 1995-05-12 | 1997-12-23 | Bayer Corporation | Fiber optic diffuse light reflectance sensor utilized in the detection of occult blood |
US5562170A (en) * | 1995-08-30 | 1996-10-08 | Ingersoll-Rand Company | Self-lubricating, fluid-actuated, percussive down-the-hole drill |
US7666150B2 (en) * | 1996-05-17 | 2010-02-23 | Roche Diagnostics Operations, Inc. | Blood and interstitial fluid sampling device |
EP1579814A3 (en) * | 1996-05-17 | 2006-06-14 | Roche Diagnostics Operations, Inc. | Methods and apparatus for sampling and analyzing body fluid |
US6332871B1 (en) * | 1996-05-17 | 2001-12-25 | Amira Medical | Blood and interstitial fluid sampling device |
ES2121564B1 (en) * | 1996-05-17 | 2001-02-01 | Mercury Diagnostics Inc | METHODS AND APPLIANCES TO EXTRACT BODY FLUID FROM AN INCISION. |
US5879311A (en) * | 1996-05-17 | 1999-03-09 | Mercury Diagnostics, Inc. | Body fluid sampling device and methods of use |
US5660791A (en) * | 1996-06-06 | 1997-08-26 | Bayer Corporation | Fluid testing sensor for use in dispensing instrument |
US5736103A (en) * | 1996-08-09 | 1998-04-07 | Lifescan, Inc. | Remote-dosing analyte concentration meter |
US5856195A (en) * | 1996-10-30 | 1999-01-05 | Bayer Corporation | Method and apparatus for calibrating a sensor element |
US6063039A (en) * | 1996-12-06 | 2000-05-16 | Abbott Laboratories | Method and apparatus for obtaining blood for diagnostic tests |
US6093156A (en) * | 1996-12-06 | 2000-07-25 | Abbott Laboratories | Method and apparatus for obtaining blood for diagnostic tests |
US5938679A (en) * | 1997-10-14 | 1999-08-17 | Hewlett-Packard Company | Apparatus and method for minimally invasive blood sampling |
US5971941A (en) * | 1997-12-04 | 1999-10-26 | Hewlett-Packard Company | Integrated system and method for sampling blood and analysis |
US6071294A (en) * | 1997-12-04 | 2000-06-06 | Agilent Technologies, Inc. | Lancet cartridge for sampling blood |
US6391005B1 (en) * | 1998-03-30 | 2002-05-21 | Agilent Technologies, Inc. | Apparatus and method for penetration with shaft having a sensor for sensing penetration depth |
US6170581B1 (en) * | 1998-06-12 | 2001-01-09 | Ingersoll-Rand Company | Backhead and check valve for down-hole drills |
JP4144019B2 (en) * | 2000-01-07 | 2008-09-03 | ニプロ株式会社 | Puncture needle |
US6706159B2 (en) * | 2000-03-02 | 2004-03-16 | Diabetes Diagnostics | Combined lancet and electrochemical analyte-testing apparatus |
US6540675B2 (en) * | 2000-06-27 | 2003-04-01 | Rosedale Medical, Inc. | Analyte monitor |
US6558624B1 (en) * | 2000-07-25 | 2003-05-06 | General Electric Company | Method and analytical system for rapid screening of combinatorial libraries |
US6889735B2 (en) * | 2000-08-03 | 2005-05-10 | The Goodyear Tire & Rubber Company | Pneumatic tire having a rubber component containing a dendrimer |
US7998746B2 (en) * | 2000-08-24 | 2011-08-16 | Robert Otillar | Systems and methods for localizing and analyzing samples on a bio-sensor chip |
US6520973B1 (en) * | 2000-08-30 | 2003-02-18 | Ethicon Endo-Surgery, Inc. | Anastomosis device having an improved needle driver |
EP1203563A3 (en) * | 2000-10-31 | 2004-01-02 | Boehringer Mannheim Gmbh | Analyzing mean with integrated lancet |
US6530892B1 (en) * | 2001-03-07 | 2003-03-11 | Helen V. Kelly | Automatic skin puncturing system |
ATE335435T1 (en) * | 2001-06-08 | 2006-09-15 | Hoffmann La Roche | BODY FLUID EXTRACTION DEVICE AND TEST MEDIA CASSETTE |
JP4157471B2 (en) * | 2001-06-12 | 2008-10-01 | ペリカン テクノロジーズ インコーポレイテッド | Integrated blood sample analysis system with multi-purpose sampling module |
US20030028087A1 (en) * | 2001-08-01 | 2003-02-06 | Yuzhakov Vadim Vladimirovich | Devices for analyte concentration determination and methods of using the same |
US20030028125A1 (en) * | 2001-08-06 | 2003-02-06 | Yuzhakov Vadim V. | Physiological sample collection devices and methods of using the same |
US7159676B2 (en) * | 2001-11-14 | 2007-01-09 | Atlas Copco Secoroc Ab | Fluid distributor device for down-hole-drills |
US7004928B2 (en) * | 2002-02-08 | 2006-02-28 | Rosedale Medical, Inc. | Autonomous, ambulatory analyte monitor or drug delivery device |
US7179654B2 (en) * | 2002-03-18 | 2007-02-20 | Agilent Technologies, Inc. | Biochemical assay with programmable array detection |
US20030211619A1 (en) * | 2002-05-09 | 2003-11-13 | Lorin Olson | Continuous strip of fluid sampling and testing devices and methods of making, packaging and using the same |
US7052652B2 (en) * | 2003-03-24 | 2006-05-30 | Rosedale Medical, Inc. | Analyte concentration detection devices and methods |
US6799641B1 (en) * | 2003-06-20 | 2004-10-05 | Atlas Copco Ab | Percussive drill with adjustable flow control |
US20060281187A1 (en) * | 2005-06-13 | 2006-12-14 | Rosedale Medical, Inc. | Analyte detection devices and methods with hematocrit/volume correction and feedback control |
-
2002
- 2002-10-04 IE IE20020794A patent/IES20020794A2/en not_active IP Right Cessation
-
2003
- 2003-09-30 US US10/529,614 patent/US20060000646A1/en not_active Abandoned
- 2003-09-30 AU AU2003273513A patent/AU2003273513A1/en not_active Abandoned
- 2003-09-30 EP EP03755670A patent/EP1549819B1/en not_active Expired - Lifetime
- 2003-09-30 AT AT03755670T patent/ATE323210T1/en not_active IP Right Cessation
- 2003-09-30 DE DE60304593T patent/DE60304593D1/en not_active Expired - Lifetime
- 2003-09-30 WO PCT/IE2003/000132 patent/WO2004031530A1/en not_active Application Discontinuation
- 2003-09-30 CA CA002500949A patent/CA2500949A1/en not_active Abandoned
-
2005
- 2005-04-08 ZA ZA200502866A patent/ZA200502866B/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5944117A (en) * | 1997-05-07 | 1999-08-31 | Eastern Driller's Manufacturing Co., Inc. | Fluid actuated impact tool |
WO1999067065A1 (en) * | 1998-06-22 | 1999-12-29 | Azuko Pty. Ltd. | A component mounting method and apparatus for a percussion tool |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006008723A2 (en) * | 2004-07-16 | 2006-01-26 | Minroc Technical Promotions Limited | A down-the-hole hammer |
WO2006008723A3 (en) * | 2004-07-16 | 2006-04-20 | Minroc Techn Promotions Ltd | A down-the-hole hammer |
US7735584B2 (en) * | 2005-09-20 | 2010-06-15 | Minroc Technical Promotions Limited | Percussion hammer for enlarging drilled holes |
AU2006293487B2 (en) * | 2005-09-20 | 2011-02-24 | Mincon International | A percussion hammer for enlarging drilled holes |
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 |
US7975784B2 (en) * | 2006-01-04 | 2011-07-12 | Minroc Technical Promotions Limited | Drill bit assembly for fluid-operated percussion drill tools |
WO2011023829A1 (en) | 2009-08-31 | 2011-03-03 | Minroc Technical Promotions Limited | A drill bit assembly for fluid-operated percussion drill tools |
DE202010017983U1 (en) | 2009-08-31 | 2013-06-12 | Mincon International | Drill bit arrangement for fluid operated impact drills |
WO2012049331A2 (en) | 2010-10-15 | 2012-04-19 | Minroc Technical Promotions Limited | A down-the-hole hammer |
Also Published As
Publication number | Publication date |
---|---|
AU2003273513A1 (en) | 2004-04-23 |
DE60304593D1 (en) | 2006-05-24 |
EP1549819A1 (en) | 2005-07-06 |
IES20020794A2 (en) | 2003-02-19 |
US20060000646A1 (en) | 2006-01-05 |
CA2500949A1 (en) | 2004-04-15 |
EP1549819B1 (en) | 2006-04-12 |
ATE323210T1 (en) | 2006-04-15 |
ZA200502866B (en) | 2006-06-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ZA200502866B (en) | A down-the hole hammer | |
US10307901B2 (en) | Disk brake wheel stud insertion and removal tool | |
US7546872B2 (en) | Liner hanger | |
US9068399B2 (en) | Down-the-hole hammer drill | |
WO2009111434A2 (en) | Telescopic fracturing isolation sleeve | |
US8991515B2 (en) | Fail-resistant hammer assembly for a valveless percussive drill | |
CA2485455C (en) | Hydraulic retention system for reciprocating pump cylinder liner | |
CA2383426C (en) | Hydraulic rod connector system | |
US6637520B1 (en) | Component mounting method and apparatus for a percussion tool | |
WO2006008723A2 (en) | A down-the-hole hammer | |
CA2373766C (en) | Hydraulic retention system for reciprocating pump cylinder liner | |
US6290424B1 (en) | Segmented ring mounting for a fluid-operated percussion drill tool | |
AU743785B2 (en) | A component mounting method and apparatus for a percussion tool | |
US5992537A (en) | Back end connection in a downhole drill | |
CA2802175C (en) | Down-hole hammer drill | |
IES20130098A2 (en) | Footvalve assembly for percussion drill tools | |
WO2017013597A1 (en) | A pneumatic drill hammer | |
IES86382Y1 (en) | Footvalve assembly for percussion drill tools | |
IES84499Y1 (en) | A drill bit assembly for fluid-operated percussion drill tools |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref document number: 2006000646 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2500949 Country of ref document: CA Ref document number: 10529614 Country of ref document: US Ref document number: 2003273513 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005/02866 Country of ref document: ZA Ref document number: 200502866 Country of ref document: ZA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003755670 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2003755670 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10529614 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 2003755670 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: JP |