DE3140776A1 - Device for catching drilling dust and the like for power hand drills - Google Patents
Device for catching drilling dust and the like for power hand drillsInfo
- Publication number
- DE3140776A1 DE3140776A1 DE19813140776 DE3140776A DE3140776A1 DE 3140776 A1 DE3140776 A1 DE 3140776A1 DE 19813140776 DE19813140776 DE 19813140776 DE 3140776 A DE3140776 A DE 3140776A DE 3140776 A1 DE3140776 A1 DE 3140776A1
- Authority
- DE
- Germany
- Prior art keywords
- hollow body
- drilling
- drill
- dust
- neck
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0053—Devices for removing chips using the gravity force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
- B23Q11/0825—Relatively slidable coverings, e.g. telescopic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
- B23Q11/085—Flexible coverings, e.g. coiled-up belts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
Titeltitle
Vorrichtung zum Auffangen von Bohrstaub und derglO für Handbohrmaschinen Anwendungsgebiet Die Erfindung betrifft eine Vorrichtung zum Auffangen des anfallenden Bohrstaubs, speziell an Handbohrmsschinen, sowohl im privaten als auch im gewerblichen Bereich nutzbar.Device for collecting drilling dust and the like for hand drills Field of application The invention relates to a device for collecting the accumulating Drilling dust, especially on hand drills, both in private and commercial Area usable.
Zweck Beim Bohren fällt immer sehr viel Bohrstaub an, der üblicherweise nicht aufgefangen wird. Dadurch kommt es zu einer Verschmutzung der Umgebung und beim Über-Kopf-Bohren zu einer Belästigung des Arbeitenden, dem z.B. oft Bohrstaub in die- Augen fällt0 Stand der Technik und Kritik Bekannt ist eine Vorrichtung zum Absaugen des Staubes mit Hilfe eines von der Bohrmaschine angetriebenen Turbinenrade (DE»GM 77 10 805) Hierfür wird jedoch eine Spezialbohrmaschine benötigt.Purpose When drilling, there is always a lot of drilling dust, which is usually the case is not caught. This leads to pollution of the environment and When drilling overhead, it is a nuisance for the worker, e.g. the often drilling dust in the eye falls 0 prior art and criticism is known a device for Sucking off the dust with the help of a turbine wheel driven by the drill (DE »GM 77 10 805) A special drill is required for this.
Weiterhin ist eine Vorrichtung bekannt, die an einem Arbeiteständer für Kreftwerkzeuyx angebracht ist. (DE-OS 27 15 378)Sie setzt also den Arbeitsetander voraus, ist daher nur zum Senkracht nach unten-Bohren geeignet und nur für stationäre Maschinen.Furthermore, a device is known which is attached to a work stand for Kreftwerkzeuyx is appropriate. (DE-OS 27 15 378) So it sets the work tander ahead, is therefore only suitable for downward drilling and only for stationary Machinery.
Diese bekannten Einrichtungen sina aufwendig, voluminös und teuer und daher z.B. für den Heimwerker nicht praktikabel.These known devices are complex, bulky and expensive and therefore not practicable e.g. for the do-it-yourselfer.
Aufgabe Der Erfindung liegt die Aufgabe zugrunde, bei der Verwendung von instationären Handbohrmaschinen den anfallenden Bohrstaub auf einfachste und sichere Art und Weise aufzufangen, kostengünstig, leicht verwendbar und ohne zusätzliche Hilfemittele Lösung Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst0 Weitere Ausgestaltung Um das Auffangen des Bohrstaubs auf einfache und kostengünstige Weise zu erreichen, ist der federnd elastische Hohlkörper zylinderförmig ausgebildet und besteht zumindest teilweise aus einem Faltenbalg, der sich beim Bohren zusammendrückt Weitere Einzelheiten und Ausgestaltungen der Erfindung sind der folgenden Beschreibung zu entnehmen, in der die Erfindung an Hand der Zeichnungen näher beschrieben und erläutert wird.The object of the invention is to use from unsteady hand drills to the simplest and most simple and safe way to collect, inexpensive, easy to use and without additional Auxiliary solution According to the invention, this object is achieved by the features of the claim 1 solved0 Further configuration In order to make collecting the drilling dust simple and easy To achieve a cost-effective way, the resiliently elastic hollow body is cylindrical formed and consists at least partially of a bellows, which is when Drilling compresses Further details and embodiments of the invention are to be found in the following description in which the invention is based on the drawings is described and explained in more detail.
Erzielbare Vorteile Die o.a. Erfindung ermöglicht das sichere Auffangen des anfallenden Bohrstaubs, insbesondere beim Waagrecht- oder Über-Kopf-Bohren, und verhindert somit die Verschmutzung der Umgebung und die Belästigung des Arbeitenden auf kostengünstige und unkomplizierte Weise.Achievable advantages The above-mentioned invention enables safe collection the resulting drilling dust, especially when drilling horizontally or overhead, and thus prevents pollution of the environment and nuisance to the worker in an inexpensive and uncomplicated way.
Der Arbeitende kann jede handelsübliche Maschine benutzen und braucht keine weiteren Zusatzeinrichtungen.Er kann sich mit der instationären Maschine frei bewegen.The worker can use and needs any commercially available machine No further additional equipment. He can move freely with the non-stationary machine move.
Beschreibung Fig. 1 Ein Ausführungsbeispiel der Erfindung ist in Figur 1 dargestellt und wird im folgenden näher beschrieben: Der zylinderförmige, durchsichtige Hohlkörper (5) aus federnd elastischem Material wird auf dem Bohrmaschinenhals (2) reibschlüssig angebracht, ist also während des Bohrens mit der Bohrmaschine verbunden. Der Hohikörper ist länger aJs der Bohrer (4) selbst. Der Faltenbalg (6) läßt sich längs der Bohrachse zusammendrücken, dadurch kann sich der Hohikörper um den gleichen Betrag, wie der Bohrer beim Bohren eintaucht, verkürzen.Description of FIG. 1 An embodiment of the invention is shown in FIG 1 and is described in more detail below: The cylindrical, transparent Hollow body (5) made of resilient material is placed on the drill neck (2) attached by friction, so it is connected to the drill while drilling. The hollow body is longer than the drill (4) itself. The bellows (6) can be Press together along the drilling axis, this allows the hollow body to move around the same Shorten the amount that the drill dips into during drilling.
Außerdem läßt sich dadurch der Hohlkörper problemlos soweit zusammendrükken, daß der Bohrer mit dem üblichen Werkzeug (Bohrfutterschlüssel) gewechselt werden kann. Die an dem zu bohrenden Gegenstand anliegende Kante (7) des Hohlkörpers ist so ausgebildet, daß sie ausreichend dicht an dem zu bohrenden Material anliegt.Dies wird dadurch erreicht, daß der Rand (7) aus geeignetem Material besteht (z.B. Gummilippe).In addition, this allows the hollow body to be easily compressed to the extent that that the drill can be changed with the usual tool (chuck key) can. The edge (7) of the hollow body resting against the object to be drilled is designed so that it is sufficiently close to the material to be drilled. This is achieved in that the edge (7) consists of a suitable material (e.g. rubber lip).
Die Form des Hohlkörpers ist so ausgebildet, daß sich der Bohrstaub beim vertikalen Bohren in Teil (8) des Hohikörpers sammelt, beim horizontalen Bohren in Teil (9). Der Hohikörper ist leicht lösbar befestigt und kann zum Ausleeren des Bohrstaubs abgenommen werden; oder der Arbeitende kippt die Bohrmaschine samt dem Hohikörper senkrecht nach unten. Der Hohikörper ist durchsichtig, damit die Sichtkontrolle beim Bohren Geuährleistet ist. Diese Vorrichtung zum Auffangen von Bohrstaub ist kostengünstig und paßt, wegen des genormten Bohramschinenhalses, auf alle deutschen Bohrmaschinen.The shape of the hollow body is designed so that the drilling dust when drilling vertically in part (8) of the hollow body collects, when drilling horizontally in part (9). The hollow body is easily detachable and can be used to empty the Drilling dust can be removed; or the worker tips the drill and the Hollow body vertically downwards. The hollow body is transparent for visual control when drilling is guaranteed. This device for collecting drilling dust is Inexpensive and fits, because of the standardized drilling machine neck, on all German Drilling machines.
Beschreibung Fig. 2 Der Hohikörper besteht aus mindestens zwei übereinanderschiebbaren Muffen silo) und (11), so ausgebildet, daß sich Muffe (11) gegen die Kraft einer l-lendelfeder (14) beim Bohren über Muffe (lo) schiebt.Die Muffe (lo) ist mit einem u-förmigen Ring (13) verbunden. Dieser Ring (13) ist am Bohrinaschinenhals reibschlüssig angebracht und fängt mittels Hohlraum (8) den Staub auf. Gleichzeitig dient der Ring als Anlagefläche für die Wendelfeder (l4), die dazu dient, die Muffe(ll) in ihre Ausgangslage zurückzuschieben. Die stirnkante (7) des Hohlkörpers ist dichtend ausgebidet (z<Bo Gummilippe). Der Hohlkörper besteht aus durchsichtigem Material0 Beschreibung Fig. 3 Der Hohikörper besteht aus elastischem, durchsichtigen Material und ist so ausgebildet, daß sich die Falte (15) beim Eintauchen des Bohrers (4) in Richtung Bohrmaschine welkt und nach dem Bohren in die Ausgangslage zurückgeht. Die Stirnkante des Hohlkörpers ist ggf, mit einer dichtenden Lippe versehen. Der Hohlkörper ist am Bohrmaschinenhals mittels einer klemm- oder Schraubverbindung angebracht0 Beschreibung Fig. 4 Der Hohlkörper besteht aus federnd elastischem, durchsichtigem Material und besteht zumindest teilweise aus einem wendelfo#rmig ausgebildeten Faltenbalg (16). In diesen ist eine Wendelfeder (17) eingelegtODer Hohlkörper ist am Bohrmaschinenhals reibachlüseig und leicht lösbar angebracht.Die freie Stirnkante (7) überragt den Bohrer und ist gyf, mit einer dichtenden Lippe versehen.Description of Fig. 2 The hollow body consists of at least two one above the other Sleeves silo) and (11), designed so that sleeve (11) against the force of a The l-lumbar spring (14) pushes over the socket (lo) when drilling. The socket (lo) is with a U-shaped ring (13) connected. This ring (13) is frictionally engaged on the drilling machine neck attached and catches the dust by means of a cavity (8). At the same time, the Ring as a contact surface for the helical spring (l4), which serves to to push the sleeve (ll) back into its original position. The front edge (7) of the hollow body is sealed (z <Bo rubber lip). The hollow body is made of transparent Material0 Description Fig. 3 The hollow body consists of elastic, transparent Material and is designed so that the fold (15) when the drill is immersed (4) wilts in the direction of the drill and returns to the starting position after drilling. The front edge of the hollow body is optionally provided with a sealing lip. Of the The hollow body is on the drill neck by means of a clamp or screw connection attached0 Description Fig. 4 The hollow body consists of resilient, elastic, transparent material and consists at least partially of a helical shape trained bellows (16). A spiral spring (17) is inserted into this The hollow body is attached to the drill neck in a frictional manner and is easily detachable free front edge (7) protrudes beyond the drill and is gyf, with a sealing lip Mistake.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813140776 DE3140776A1 (en) | 1981-10-14 | 1981-10-14 | Device for catching drilling dust and the like for power hand drills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813140776 DE3140776A1 (en) | 1981-10-14 | 1981-10-14 | Device for catching drilling dust and the like for power hand drills |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3140776A1 true DE3140776A1 (en) | 1983-04-28 |
Family
ID=6144071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19813140776 Withdrawn DE3140776A1 (en) | 1981-10-14 | 1981-10-14 | Device for catching drilling dust and the like for power hand drills |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3140776A1 (en) |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4848980A (en) * | 1986-12-05 | 1989-07-18 | Alphe Broussard | Dust collector adaptor for electric drills |
US4955984A (en) * | 1987-03-03 | 1990-09-11 | Cuevas Levearn F | Safety debris catcher |
EP0401520A2 (en) * | 1989-06-08 | 1990-12-12 | Buster Products Limited | A dust collector |
US5061123A (en) * | 1986-12-05 | 1991-10-29 | Alphe Broussard | Dust collector adaptor for electric drills |
US5160230A (en) * | 1991-09-05 | 1992-11-03 | Cuevas Laverne F | Safety debris catcher |
DE9311481U1 (en) * | 1993-08-02 | 1993-10-07 | Komeg-Somac Sondermaschinenbau GmbH Chemnitz, 09116 Chemnitz | Device for drilling cavities in motor vehicles |
US5292210A (en) * | 1992-12-10 | 1994-03-08 | Nowick Linda P | Dustless hole saw enclosure |
DE19513748A1 (en) * | 1995-04-11 | 1996-10-17 | Enrico Hilbert | Device for receiving drilling swarf of drilling machine |
US5653561A (en) * | 1993-07-23 | 1997-08-05 | May; Robert | Swarf boot |
GB2343645A (en) * | 1998-11-10 | 2000-05-17 | Patrick Hunt | Debris collection device for a powered hand drill |
WO2000041453A2 (en) * | 1999-01-18 | 2000-07-20 | Wetterle Bonow Luiz De | Dust collector for electric drills |
US6102631A (en) * | 1997-10-01 | 2000-08-15 | Nyari; Alexander | Drill attachment |
FR2795351A1 (en) * | 1999-06-24 | 2000-12-29 | Jean Max Rousselot | Transparent receptacle for recovering waste generated from working zone held by adhesive coated base against zone has collecting opening and front orifice for penetration of tool |
US6247879B1 (en) * | 1999-08-26 | 2001-06-19 | Michael A. Costa | Hand held drill press |
US6457915B1 (en) * | 2000-06-19 | 2002-10-01 | Chin-Fa Kao | Dust collector of ceiling driller |
DE102005058791B3 (en) * | 2005-04-21 | 2006-11-02 | Tts Tooltechnic Systems Ag & Co. Kg | Auxiliary device for hand drills for extracting the dust generated during drilling |
US7175371B2 (en) * | 2003-07-18 | 2007-02-13 | Vidal Robert J | Protective shield for a tool |
WO2006113441A3 (en) * | 2005-04-19 | 2007-12-06 | Black & Decker Inc | Power tool having power-take-off driven chuck with dust protection features |
US7396193B2 (en) * | 2006-05-15 | 2008-07-08 | Douglas Kesten | Dust collector for drill |
US20100000386A1 (en) * | 2006-05-19 | 2010-01-07 | Josef Dagn | Manually operated drilling or milling apparatus with a suction device |
US7645101B2 (en) | 2005-09-16 | 2010-01-12 | Black & Decker Inc. | Chuck with internally threaded jaw in a PTO application |
US7690658B2 (en) | 2004-09-20 | 2010-04-06 | Black & Decker Inc. | Tool chuck with power take off feature |
US20100096815A1 (en) * | 2008-10-17 | 2010-04-22 | Raymond Mackell | Flexible coupling for attachments to a hand drill |
GB2474884A (en) * | 2009-10-30 | 2011-05-04 | Dean Barnes | Debris collecting device |
CN103085036A (en) * | 2013-02-25 | 2013-05-08 | 胡昌龙 | Anti-dust device of drilling equipment |
CN103085039A (en) * | 2011-10-28 | 2013-05-08 | 陈朝阳 | Positioning sleeve for electric drill dust covers |
US8662801B2 (en) | 2009-02-24 | 2014-03-04 | Black & Decker Inc. | Depth gauge for drill bit |
US8721234B2 (en) | 2009-02-24 | 2014-05-13 | Black & Decker Inc. | Depth gauge for drill bit |
US8740513B2 (en) | 2009-02-24 | 2014-06-03 | Black & Decker Inc. | Dust collector for use with drill bit or drill bit depth stop |
CN109623480A (en) * | 2018-12-19 | 2019-04-16 | 象山金鹏电子器材有限公司 | A kind of five metalworking drilling machines with waste recovery function |
EP2035652B1 (en) | 2006-07-04 | 2020-01-22 | Comacchio International S.A. | Boring head with new protection hood |
US11565360B2 (en) * | 2018-06-04 | 2023-01-31 | Uwm Research Foundation, Inc. | Dust collection for cutting machine |
-
1981
- 1981-10-14 DE DE19813140776 patent/DE3140776A1/en not_active Withdrawn
Cited By (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5061123A (en) * | 1986-12-05 | 1991-10-29 | Alphe Broussard | Dust collector adaptor for electric drills |
US4848980A (en) * | 1986-12-05 | 1989-07-18 | Alphe Broussard | Dust collector adaptor for electric drills |
US4955984A (en) * | 1987-03-03 | 1990-09-11 | Cuevas Levearn F | Safety debris catcher |
EP0401520A2 (en) * | 1989-06-08 | 1990-12-12 | Buster Products Limited | A dust collector |
EP0401520A3 (en) * | 1989-06-08 | 1991-05-02 | Buster Products Limited | A dust collector |
US5160230A (en) * | 1991-09-05 | 1992-11-03 | Cuevas Laverne F | Safety debris catcher |
US5292210A (en) * | 1992-12-10 | 1994-03-08 | Nowick Linda P | Dustless hole saw enclosure |
US5653561A (en) * | 1993-07-23 | 1997-08-05 | May; Robert | Swarf boot |
DE9311481U1 (en) * | 1993-08-02 | 1993-10-07 | Komeg-Somac Sondermaschinenbau GmbH Chemnitz, 09116 Chemnitz | Device for drilling cavities in motor vehicles |
DE19513748A1 (en) * | 1995-04-11 | 1996-10-17 | Enrico Hilbert | Device for receiving drilling swarf of drilling machine |
US6102631A (en) * | 1997-10-01 | 2000-08-15 | Nyari; Alexander | Drill attachment |
GB2343645A (en) * | 1998-11-10 | 2000-05-17 | Patrick Hunt | Debris collection device for a powered hand drill |
WO2000041453A2 (en) * | 1999-01-18 | 2000-07-20 | Wetterle Bonow Luiz De | Dust collector for electric drills |
WO2000041453A3 (en) * | 1999-01-18 | 2002-10-03 | Wetterle Bonow Luiz De | Dust collector for electric drills |
FR2795351A1 (en) * | 1999-06-24 | 2000-12-29 | Jean Max Rousselot | Transparent receptacle for recovering waste generated from working zone held by adhesive coated base against zone has collecting opening and front orifice for penetration of tool |
US6247879B1 (en) * | 1999-08-26 | 2001-06-19 | Michael A. Costa | Hand held drill press |
US6457915B1 (en) * | 2000-06-19 | 2002-10-01 | Chin-Fa Kao | Dust collector of ceiling driller |
US7175371B2 (en) * | 2003-07-18 | 2007-02-13 | Vidal Robert J | Protective shield for a tool |
US7690658B2 (en) | 2004-09-20 | 2010-04-06 | Black & Decker Inc. | Tool chuck with power take off feature |
WO2006113441A3 (en) * | 2005-04-19 | 2007-12-06 | Black & Decker Inc | Power tool having power-take-off driven chuck with dust protection features |
DE102005058791B3 (en) * | 2005-04-21 | 2006-11-02 | Tts Tooltechnic Systems Ag & Co. Kg | Auxiliary device for hand drills for extracting the dust generated during drilling |
US7645101B2 (en) | 2005-09-16 | 2010-01-12 | Black & Decker Inc. | Chuck with internally threaded jaw in a PTO application |
US7396193B2 (en) * | 2006-05-15 | 2008-07-08 | Douglas Kesten | Dust collector for drill |
US20100000386A1 (en) * | 2006-05-19 | 2010-01-07 | Josef Dagn | Manually operated drilling or milling apparatus with a suction device |
EP2035652B1 (en) | 2006-07-04 | 2020-01-22 | Comacchio International S.A. | Boring head with new protection hood |
US20100096815A1 (en) * | 2008-10-17 | 2010-04-22 | Raymond Mackell | Flexible coupling for attachments to a hand drill |
US8662801B2 (en) | 2009-02-24 | 2014-03-04 | Black & Decker Inc. | Depth gauge for drill bit |
US8721234B2 (en) | 2009-02-24 | 2014-05-13 | Black & Decker Inc. | Depth gauge for drill bit |
US8740513B2 (en) | 2009-02-24 | 2014-06-03 | Black & Decker Inc. | Dust collector for use with drill bit or drill bit depth stop |
US9505063B2 (en) | 2009-02-24 | 2016-11-29 | Black & Decker Inc. | Depth gauge and drill bit |
GB2475156B (en) * | 2009-10-30 | 2013-09-18 | Dean Barnes | Debris collecting device |
GB2475156A (en) * | 2009-10-30 | 2011-05-11 | Dean Barnes | Debris collecting device |
GB2474884A (en) * | 2009-10-30 | 2011-05-04 | Dean Barnes | Debris collecting device |
CN103085039A (en) * | 2011-10-28 | 2013-05-08 | 陈朝阳 | Positioning sleeve for electric drill dust covers |
CN103085036A (en) * | 2013-02-25 | 2013-05-08 | 胡昌龙 | Anti-dust device of drilling equipment |
US11565360B2 (en) * | 2018-06-04 | 2023-01-31 | Uwm Research Foundation, Inc. | Dust collection for cutting machine |
CN109623480A (en) * | 2018-12-19 | 2019-04-16 | 象山金鹏电子器材有限公司 | A kind of five metalworking drilling machines with waste recovery function |
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Legal Events
Date | Code | Title | Description |
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8139 | Disposal/non-payment of the annual fee |