WO2007111766A1 - Device and method for extraction of dust from a grinder - Google Patents
Device and method for extraction of dust from a grinder Download PDFInfo
- Publication number
- WO2007111766A1 WO2007111766A1 PCT/US2007/001384 US2007001384W WO2007111766A1 WO 2007111766 A1 WO2007111766 A1 WO 2007111766A1 US 2007001384 W US2007001384 W US 2007001384W WO 2007111766 A1 WO2007111766 A1 WO 2007111766A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plug
- working surface
- grinding
- machine
- treating surfaces
- Prior art date
Links
- 239000000428 dust Substances 0.000 title abstract description 29
- 238000000605 extraction Methods 0.000 title description 3
- 238000000227 grinding Methods 0.000 claims abstract description 61
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 20
- 229910003460 diamond Inorganic materials 0.000 claims description 11
- 239000010432 diamond Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
- B24B7/186—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like with disc-type tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
- B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
- B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with cooling provisions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/12—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with apertures for inspecting the surface to be abraded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/18—Wheels of special form
Definitions
- This invention relates to a machine and consumables for grinding surfaces, such as those formed of concrete, and particularly to an improved method for the collection of dust and other loose material generated as part of the grinding process.
- the working surfaces of grinders are often cooled with water, producing a dust-water mixture called slurry. Cleaning up the slurry adds time to a grinding operation.
- the invention is directed to methods and arrangements for collecting dust in machines adapted to grind surfaces that address these problems.
- plug for a grinding machine comprises a hole bored in the plug for use as a dust collection port.
- plug for a grinding machine comprises a plurality of holes bored in the plug for use as dust collection ports.
- a grinding machine comprises a housing; a drive mechanism, including a shaft extending through the housing; a shroud surrounding the shaft and abutting the housing to form a plenum; a head connected to the drive mechanism; at least one grinding plug having a working surface mounted in the head; and at least one channel extending from proximate the working surface into the plenum.
- a plug-type grinding machine comprises one or more individual shrouds for each grinding plug.
- FIG. 1 is a cross-sectional view of a grinding apparatus illustrating one embodiment of the invention
- FIG. 2 A is a side view of a portion of one embodiment of a grinding apparatus according to the invention
- FIG. 2B is an upper perspective view of the apparatus portion of Fig. 2A
- FIG. 2C is a lower perspective view of the apparatus portion of Fig. 2A
- FIG. 3 A is an upper perspective view of a grinding plug according to one aspect of the invention
- FIG. 3B is a lower perspective view of the grinding plug of Fig. 3 A
- FIG. 3C is a side view of the grinding plug of Fig. 3A
- FIG. 3D is a top view of the grinding plug of Fig. 3 A
- FIG. 3E is cross-section view taken along line 3E-3E
- FIG. 4A is a lower perspective view of a second grinding plug suitable for use with the invention
- FIG. 4B is an upper perspective view of the grinding plug of Fig. 4A;
- FIG.4C is a side view of the grinding plug of Fig.4A;
- FIG.4D is a top view of the grinding plug of Fig. 4 A;
- FIG. 4E is cross-section view taken along line 4E-4E.
- FIG. 5 A is a bottom view of a one embodiment of a grinding head according to the invention.
- FIG. 5B is an side view of the head of Fig. 5A;
- FIG. 5C is a perspective view of the head of Fig. 5 A;
- FIG. 5D is a cross-section view taken along line 5D-5D;
- FIG.6 A is a bottom view of another embodiment of a grinding head according to the invention.
- FIG. 6B is a side view of the head of Fig. 6A;
- FIG. 6C is a perspective view of the head of Fig. 6A;
- FIG. 7 A is a bottom view of another embodiment of a grinding head according to the invention.
- FIG. 7B is a side view of the head of Fig. 7A.
- an exemplar floor grinding machine 1 suitable for use with the invention includes a frame 100, a housing 200, and a grind assembly 400.
- Suitable grinding machines for use with the invention include, but are not limited to, the Blastrac ® BMG 2500 Plug Style Grinder. Note that "grinding” is defined herein to encompass all operations that concern the surfacing of hard materials, such as concrete, stone, terrazzo, and the like, including the processes commonly known as grinding, sanding, polishing, and buffing.
- the frame 100 is connected to a drive mechanism including wheels (not shown) and a handle assembly with controls (also not shown), as is conventional in the art.
- a dust collection system (not shown), including a dust collection bin or bag, may be mounted in or on the housing, or may be separate from the floor grinding machine 1.
- the frame 100 is connected to the housing 200 that supports a motor (not shown) for driving the grind assembly 400 via shaft 150.
- the housing 200 constructed of sheet steel or other durable material, includes a top portion 202 as well as peripheral wall portions 204 that extend to the floor or other surface to be ground.
- the wall portions may include seals 206 where they meet the surface to be ground.
- the seals when used, may be rubber or plastic gaskets, nylon bristles, metal shrouds, or any other suitable material or structure, as would be understood by one of skill in the art.
- the shaft 150 projects through the housing 200 and drives one or more heads 240 in a rotating fashion.
- a coupling mechanism 270 such as a Morflex ® coupler, may be positioned between the shaft 150 and the one or more heads 240.
- the grinding machine 1 includes two heads 240.
- each head 240 includes at least one bore 245 for receiving a wear plug 300.
- the bores 245 are tapered, so that the wear plugs 300 may be held in place by a friction fit, aided by the weight of the machine.
- each head 240 includes three bores 245 for receiving three wear plugs 300.
- the wear plugs 300 of this embodiment may be made of any appropriate materials or materials.
- One suitable plug is the Blastrac ® X Type Diamond Plug. This plug has an X-shaped extension with a course grit diamond coating.
- a Blastrac ® X Type Diamond Plug modified for use with one embodiment of the invention is illustrated on Figs. 3A-3E.
- Another suitable plug would be the Blastrac ® 30-40 Grit Diamond Plug, shown, as modified for use with one embodiment of the invention, in Figs. 4A-4E.
- the abrasive used in conjunction with this invention also may be formed of or comprise any appropriate material or materials other than diamond, and that it may be of any suitable grit.
- wear plugs may be suitable for use with the invention, as would other types of consumables, including discs or wheels, as would be understood by one of skill in the art.
- the wear plugs 300 are generally cylindrical and are tapered along at least part of their length, so as to facilitate the friction fit into bores 245.
- the wear plugs 300 may be shapes other than cylinders and may or may not be tapered.
- Other methods of securing the wear plugs 300 into the bores 245 may also be used, including threads, clips, pins, bolts, or any other appropriate method.
- the wear plugs 300 are attached to the floor grinding machine 1 by other means, such as by surface mounting and fixation to the head 240 by means of the bolt or other threaded element, or otherwise.
- the method of connecting the wear plugs to the machine is not material to the invention.
- the wear plugs 300 include a working surface 305, ' commonly coated with a thickness of diamond grit or another abrasive, and one or more channels 310.
- working surface it is meant the portion of the plug that performs the grinding operation. In the case of the Blastrac ® X Type Diamond Plug, for example, the working surface would include the face of the "X,” indicated by reference numeral
- the working surface 305 need not be flat, and may instead be convex, concave, or undulating. In some embodiments, the working surface 305 may have rounded or chamfered edges.
- the wear plugs 300 include one channel 310 in the center of the wear plug 300, along its axis. In other embodiments, there may be, in addition to or instead of a center channel, a plurality of channels 310 spaced around the axis of the wear plug 300, either regularly or irregularly.
- the channels 310 are cylindrical bores that are approximately 3/8 of an inch in diameter, although other cross-sectional shapes and sizes could be appropriate. Other embodiments may employ a larger number of channels of the same, a smaller, or a larger cross-sectional area. In some cases, channels 310 may be of one or more different diameters.
- channels 310 are spaced about the axis, they may run in a direction parallel to the axis of the plug, or some or all may taper in the direction of, or away from, the axis.
- the channels 310 may be arranged such that they all exit the wear plugs 300 and the same radial distance from the axis, or, in other embodiments, the channels 310 may exit the wear plugs 300 at different radial positions relative to the axis of the wear plug 300. In some embodiments, the channels 310 may exit the plug through the working surface 300; in others, they may exit the plug a position proximate to, but not on, the working surface 300.
- the wear plug 300 also includes a recess 320 in the end opposite the working surface 305.
- the recess 320 may be sized and positioned such that each channel 310 opens into recess 320, forming a small plenum, rather than extending to the top of the plug.
- the inventive system includes individual plug shrouds
- the plug shrouds 330 may be made of a flexible material, such as urethane, and may be held in place by friction and/or by a taper on the wear plugs 300.
- the plug shrouds 330 are sized to have the same axial length as the portion of the wear plug 300 extending below the head 240. As the wear plugs 300 are worn, the plug shrouds 330 also wear, so that shrouds 330 always extend to the working surface.
- the plug shrouds 330 may include one or more reliefs (not shown) formed on the inside (i.e., the side in contact with the wear plug 330) to facilitate the flow of air and/or reduce clogging.
- the cuffs 250 are terminated in a plane such that the radial outermost portion extends further above the top side of the head 240 than the radial innermost portion.
- the cuffs 250 each receive a hose 260 made of an abrasive resistant material.
- the hoses 260 may be sized for a friction fit over the cuffs 250 and/or may be secured with a clamp or by other means.
- each hose 260 is connected to an inverted shroud 210.
- the inverted shroud 210 is bowl-shaped and surrounds the shaft 150.
- the bottom of the shroud 210 is connected to the shaft 150, directly or indirectly, such that it rotates with the shaft 150.
- the shroud 210 is flexible and is also constructed of an abrasive resistant material.
- the lip 215 of the shroud rests against, but is not connected to, the lower surface of the top 202 of the housing 200.
- Extending through the top 202 of the housing 200 is at least one dust evacuation port 280.
- the port 280 is positioned such that it communicates with the plenum formed by the shroud 210 and the top of the housing 202.
- the port 280 may be perpendicular to the top of the housing or, as in the illustrative embodiment, arranged with its axis at an angle relative to the top 202 of the housing 200.
- An evacuation hose (not shown) connects the port 280 to a dust collector (also not shown).
- the dust collector draws air and entrained dust and fines through the channel(s) 310 in each plug, through the recess 320 in each plug, through the cuffs 250 on the head 240, through each hose 260, and into the plenum formed by the shroud 210 and the top 202 of the housing 200.
- the air, dust, and fines are then drawn through the port 280 and into the dust collector.
- the holes in the grinding tooling in effect, become high velocity ports in close proximity to the development of dust.
- the ports travel with the plug, immediately capturing airborne dust as well as dust falling back to the surface.
- only a minimal amount of dust falls to the surface between plugs, allowing each successive plug can more efficiently engage the work surface.
- the system also allows air to flow through the tool, dissipating heat and avoiding clean-up associated with water-cooling of the wear plugs or working surface.
- a head 500 carries three wear solid wear plugs 510 3 which may be mounted by any suitable method.
- Optional shrouds 520 are positioned about the solid wear plug 510.
- One or more local dust evacuation ports 530 extend through the circular head 500 and communicate with a gap between the solid wear plugs 510 and the shrouds 520. This embodiment provides localized high velocity ports that travel with each solid wear plug 510, without the need for channels extending though the plugs themselves.
- Figs. 6A-C depict another embodiment of the invention.
- a head 600 carries three solid wear plugs 610, mounted, as above, in any appropriate manner.
- elongated evacuation ports 630 Positioned behind each wear plug 610, relative to the direction of travel of the rotating head 600, are elongated evacuation ports 630.
- the elongated evacuation ports 630 extend through the head 600 and to the surface being treated.
- the elongated evacuation ports 630 which may be made of any appropriate rigid or semi-rigid material and have a cross-section that is rectangular or any other suitable shape, wear as the plugs 610 wear and provide localized high- velocity dust collection.
- Figs. 7A-B show a head 700 that includes a plurality of wear plugs 710.
- elongated agitators 720 Positioned behind each wear plug 710, relative to the direction of travel of the rotating head 700, are elongated agitators 720.
- the agitators which may be made of bristles, urethane, neoprene, or any other appropriate rigid or semi-rigid material, operate to stir up dust or other debris from the surface of being treated to allow it to be entrained in the flow of air to a dust collection system.
- Elongated agitators 720 may be used in a system with conventional dust collection, or in conjunction with one or more of the localized, high velocity systems described above.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07748979A EP2001636A1 (en) | 2006-03-24 | 2007-01-19 | Device and method for extraction of dust from a grinder |
CN200780018461A CN101678531A (en) | 2006-03-24 | 2007-01-19 | Device and method for extraction of dust from a grinder |
CA002650332A CA2650332A1 (en) | 2006-03-24 | 2007-01-19 | Device and method for extraction of dust from a grinder |
AU2007229923A AU2007229923A1 (en) | 2006-03-24 | 2007-01-19 | Device and method for extraction of dust from a grinder |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78578706P | 2006-03-24 | 2006-03-24 | |
US60/785,787 | 2006-03-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007111766A1 true WO2007111766A1 (en) | 2007-10-04 |
Family
ID=38198448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/001384 WO2007111766A1 (en) | 2006-03-24 | 2007-01-19 | Device and method for extraction of dust from a grinder |
Country Status (8)
Country | Link |
---|---|
US (1) | US20070232206A1 (en) |
EP (1) | EP2001636A1 (en) |
KR (1) | KR20090086307A (en) |
CN (1) | CN101678531A (en) |
AU (1) | AU2007229923A1 (en) |
CA (1) | CA2650332A1 (en) |
RU (1) | RU2008142121A (en) |
WO (1) | WO2007111766A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8366518B2 (en) * | 2010-02-11 | 2013-02-05 | Miles Supply, Inc. | Orbital smoothing device |
US9089945B2 (en) * | 2010-02-11 | 2015-07-28 | Miles Supply, Inc. | Orbital smoothing device |
WO2013032115A1 (en) * | 2011-08-31 | 2013-03-07 | Ehwa Diamond Industrial Co., Ltd. | Grinding tool |
KR101255614B1 (en) * | 2011-08-31 | 2013-04-16 | 이화다이아몬드공업 주식회사 | Grinding tools |
WO2020150601A1 (en) * | 2019-01-19 | 2020-07-23 | Waterblasting, Llc | Grinder head |
US11618121B2 (en) | 2020-09-23 | 2023-04-04 | SlurryMonster, LLC | Assembly for a floor processing machine |
CN113370017B (en) * | 2021-07-07 | 2022-08-05 | 中信国安建工集团有限公司 | Grinding equipment for improving working performance of plastering mortar and operation method |
CN117380321B (en) * | 2023-12-04 | 2024-02-06 | 济南中农昊正生物技术有限公司 | Milling extraction device and method for extracting plant essential oil by using same |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE266768C (en) * | ||||
GB258768A (en) * | 1926-01-20 | 1926-09-30 | William Kynaston Couch | Improvements in or relating to grinding or polishing apparatus |
DE1683168A1 (en) * | 1966-02-02 | 1969-12-04 | Eugen Laegler Maschb | Floor grinder |
US3701221A (en) * | 1971-04-07 | 1972-10-31 | Frank P Vinella | Dry grinding terrazzo floor finishing machine |
US4328645A (en) * | 1980-06-04 | 1982-05-11 | The Boeing Company | Multiple spindle flexible sanding head |
DE4316879A1 (en) * | 1993-05-19 | 1994-11-24 | Senger Lore | Grinding head |
FR2768641A1 (en) * | 1997-09-24 | 1999-03-26 | Thibaut Sa | Buffing wheel head for polishing stones |
JP2006088303A (en) * | 2004-09-27 | 2006-04-06 | Kyocera Corp | Tool for grinding work and device for grinding work |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4616449A (en) * | 1984-08-31 | 1986-10-14 | Miksa Marton | Suction housing for vacuum sanding devices |
NL1006141C1 (en) * | 1997-05-27 | 1998-12-01 | Holland Ind Diamantwerken Bv | Grinding machine. |
US5993305A (en) * | 1998-10-31 | 1999-11-30 | Chu; Eric | Air-drafting dust remover for power sander |
KR100314287B1 (en) * | 1999-07-29 | 2001-11-23 | 김세광 | Grinding wheel |
US6494772B1 (en) * | 1999-11-30 | 2002-12-17 | Roger W. Barnes | Floor conditioning system |
US20060073776A1 (en) * | 2004-10-04 | 2006-04-06 | Eric Gallup | Tool holder for a grinding machine |
-
2007
- 2007-01-19 CA CA002650332A patent/CA2650332A1/en not_active Abandoned
- 2007-01-19 EP EP07748979A patent/EP2001636A1/en not_active Withdrawn
- 2007-01-19 WO PCT/US2007/001384 patent/WO2007111766A1/en active Application Filing
- 2007-01-19 RU RU2008142121/02A patent/RU2008142121A/en not_active Application Discontinuation
- 2007-01-19 AU AU2007229923A patent/AU2007229923A1/en not_active Abandoned
- 2007-01-19 KR KR1020087026132A patent/KR20090086307A/en not_active Application Discontinuation
- 2007-01-19 US US11/624,960 patent/US20070232206A1/en not_active Abandoned
- 2007-01-19 CN CN200780018461A patent/CN101678531A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE266768C (en) * | ||||
GB258768A (en) * | 1926-01-20 | 1926-09-30 | William Kynaston Couch | Improvements in or relating to grinding or polishing apparatus |
DE1683168A1 (en) * | 1966-02-02 | 1969-12-04 | Eugen Laegler Maschb | Floor grinder |
US3701221A (en) * | 1971-04-07 | 1972-10-31 | Frank P Vinella | Dry grinding terrazzo floor finishing machine |
US4328645A (en) * | 1980-06-04 | 1982-05-11 | The Boeing Company | Multiple spindle flexible sanding head |
DE4316879A1 (en) * | 1993-05-19 | 1994-11-24 | Senger Lore | Grinding head |
FR2768641A1 (en) * | 1997-09-24 | 1999-03-26 | Thibaut Sa | Buffing wheel head for polishing stones |
JP2006088303A (en) * | 2004-09-27 | 2006-04-06 | Kyocera Corp | Tool for grinding work and device for grinding work |
Also Published As
Publication number | Publication date |
---|---|
RU2008142121A (en) | 2010-04-27 |
AU2007229923A1 (en) | 2007-10-04 |
EP2001636A1 (en) | 2008-12-17 |
CN101678531A (en) | 2010-03-24 |
AU2007229923A8 (en) | 2008-12-11 |
KR20090086307A (en) | 2009-08-12 |
US20070232206A1 (en) | 2007-10-04 |
CA2650332A1 (en) | 2007-10-04 |
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