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US3126021A - Grinding device - Google Patents

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US3126021A
US3126021A US3126021DA US3126021A US 3126021 A US3126021 A US 3126021A US 3126021D A US3126021D A US 3126021DA US 3126021 A US3126021 A US 3126021A
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grinding
burr
groove
hood
grinding device
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D29/00—Manicuring or pedicuring implements
    • A45D29/04—Nail files, e.g. manually operated
    • A45D29/05—Nail files, e.g. manually operated motor-driven
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2193—Guard mechanisms

Definitions

  • This invention relates generally to cleaners, and more specifically to an improved grinding device for trimming nails and the like.
  • the podiatrist In the practice of podiatry, the podiatrist often resorts to a high-speed drill, particularly where it is necessary to trim or remove a portion of the patients toe nail. In many instances, the toe nail becomes extremely hard and diiicult to cut by normal nail-cutting tools. In cases of this type, the podiatrist will use the drill provided with a suitable burr or cutting tool to obtain the desired cutting action.
  • the high-speed drill in conjunction with a properly selected burr, provides an excellent tool for removing the nail, but suffers the serious disadvantage of producing minute dust particles which permeate the operating room and settle on the equipment, the toes and feet of the patient, and on the hands and person of the podiatrist.
  • This dust if inhaled by the patient or podiatrist, is believed to be detrimental to the health of the person involved, and in some instances is believed to be one of the causes of lung silicosis, or mycotic lung infection, particularly when the person is subjected to inhalation of the dust over a period of years. This is particularly believed to be the case Where hypertrophied nails, mycotic or otherwise, are subjected to the drilling operation.
  • the above-indicated serious disadvantage of the drilling operation isbelieved to be effectively reduced by applicants invention to the point where it is no longer a hazard.
  • One of the objects of the present invention is to provide an improved grinding device for nails and the like that is of simple design and construction, thoroughly reliable and efficient in operation, and economical to manufacture.
  • Another object of this invention is to provide an improved grinding device containing a burr for grinding nails or the like in which substantially all of the dust produced thereby is captured.
  • Another object of the invention is to provide an improved grinding device in which approximately 90 percent of the dust produced during a drilling operation is prevented from settling upon the equipment, the toes and feet of the patient, and on the hands and person of the operator, and from permeating and contaminating the air in the room.
  • a further object of this invention is to provide an improved grinding device for nails or the like which is believed to substantially eliminate any danger to the health of the operator.
  • a more specific object of the invention is to provide an improved grinding device for nails or the like having a transparent hood mounted over the burr, and vacuum means connected to the hood for removing the dust particles formed during the drilling operation.
  • Another specilic object of this invention is to provide an improved grinding device for nails or the like having a transparent hood mounted over the burr of the drill that magnies the nail and burr.
  • Still another specific object of this invention is to provide an improved grinding device for toe nails or the like including a transparent magnifying hood in register with a drill burr for magnifying the nail and burr and catching the dust developed during the drilling operation and guiding it to a vacuum source.
  • Another object of the invention is to provide an improved holding device for releasably supporting a grinding means including a burr at an angle with respect to the ice axis of the holding device to direct the dust developed during a grinding operation to the mouth of an opening connected to a vacuum source.
  • FIG. l is a side elevation view partially in section of a preferred embodiment of the grinding device 0f this invention.
  • FIG. 2 is a bottom view of the grinding device of FIG. l with the hose, hose fitting, clamp and drill removed for purposes of clarity;
  • FIG. 3 is a front end View of the grinding device of FIG. 2;
  • FIG. 4 is a rear end View of the grinding device of FIG. 2;
  • FIG. 5 is a side elevation view of the clamp for releasably holding the drill to the cleaning head.
  • the grinding device 6 essentially comprises an elongated cylindrical cleaning head 7 of a size adapted to snugly t in the hand of the operator, and formed from a transparent moldable material such as Plexiglas or Lucite.
  • head 7 As seen best in FIG. l is molded to form a semi-circular hood 8 in which the radii of the top surface 9 is approximately 0.5 and the radii of the lower surface 1li is approximately 0.75. Consequently, hood 3 forms a deep meniscus lens or magnifying glass which when interposed between an object and the viewer serves to magnify the object.
  • the head 7 further has an elongated opening 11 extending therethrough, and one end 12 thereof terminates at the lower surface of hood 8 and ares outwardly as seen in FIG. 2, and its opposite end 13 is threaded for receiving a threaded fitting 1dof any known type.
  • a tube 15 has one end secured to threaded tting 14 by a knurled nut 16, and its opposite end connected to any suitable source of vacuum, not shown, such as any commercially available Vacuum cleaner.
  • the cylindrical head 7 further has an elongated axially extending peripheral V-shaped groove 17 as best seen in FIGS. 2, 3 and 4, and the bottom or root of groove 17 is inclined approximately 2 degrees with respect to the axis designated A of head 7 as seen in FIG.
  • the root of groove 17 forms a seat for a drill 18 which is releasably held against the seat by a spring clamp 19, as seen best in FIGS. 1 and 5, encircling cylindrical head 7.
  • the cylindrical head 7 has a peripheral recess 21 as seen in FIG. 2 into which spring clamp 19 seats for preventing movement of clamp 19 axially along head 7.
  • the drill 13 is of any well-known commercial type in use in industry today, particularly in the dental profession, having means for releasably holding a burr 22 at one end, and drivingly conrncting burr 22 by means of a flexible shaft 23 to a high-speed driving motor, not shown, for rotatably driving same.
  • the drill 18 is manually slid along groove 17 underneath clamp 19 by the operator.
  • a burr 22 is secured to drill 18 and the drill axially moved by the operator along groove 17 until burr 22 is properly centered under hood 8.
  • the axis of the burr 22 which is parallel thereto is inclined with respect to axis A placing the burr in a more favorable cutting position with respect to an object for throwing any dust produced by its rotation into engagement with the flared end l2 of opening 11.
  • the burr is moved closer to the flared end 12 resulting in better dust removal from the object and less contamination of the surrounding air.
  • the operator secures .9 a burr 22 to drill 18, and then turns on the drive motor for rotatably driving the burr at a high rate of speed.
  • the operator grasps cylindrical head 7 in one hand and manipulates the head bringing burr 22 into engagement with an object to be worked upon such as a nail of a patients toe.
  • the operator views the object through hood 8 giving him an enlarged picture of the object and the burr 22 to aid the operator in his work.
  • the dust produced by burr 22 is thrown by the rotation of the burr into engagement with the liared end 12 of opening 11 and drawn by the vacuum source into some suitable receptacle, not shown. Consequently, very little of the dust escapes around the edges of hood 8.
  • a substantially cylindrical unitary member having its outer periphery at one end forming a handle, and having a transparent suction hood at the opposite end adapted to overlie a burr and through which the operator can observe the grinding action;
  • said member having an axially extending longitudinal groove for receiving said grinding means with the root of said groove being inclined with respect to the axis of said unitary member so that the depth of said groove-at the end of said member having said suction hood is greater than the depth of said groove at the opposite end of said member;
  • said member further having passage means extending from the under side of said hood to said one end for connection with a vacuum source.
  • grinding means including a burr connectable to a power source and adapted to be driven thereby;
  • a substantially cylindrical unitary member having its outer periphery at one end forming a handle, and having a transparent suction hood at the opposite end overlying the burr and through which the operator can observe the grinding action, said member having an axially extending longitudinal groove for receiving said grinding means with the root of said groove being inclined with respect to the axis of said member so that the depth of said groove at the end of said member having said suction hood is greater than the depth of said groove at the opposite end of said member;
  • said support means further having passage means connecting the underside of said hood to a vacuum source whereby any dust particles produced during the grinding operation are caught by said hood and drawn to said vacuum source through said passage means.
  • said lens has an outer surface having a radius of approximately 0.5 inch, and an inner surface having a radius of approx* imately 0.75 inch.

Landscapes

  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Description

Marchv 24, 1964 R, G. MAY
GRINDING DEVICE Filed Nov. 25, 1960 ROBERT YGEO/M125' MAY INVENTOR.
BY/tr/ Arron/vn United States Patent O 3,126,021 GRHNDBNG DEVICE Robert Ge'nrge May, 75 Panorama Trail, Webster, NY. Filed Nov. 25, 196i), Ser. No. 71,486 4 Claims. (ci. 13a-76.4)
This invention relates generally to cleaners, and more specifically to an improved grinding device for trimming nails and the like.
In the practice of podiatry, the podiatrist often resorts to a high-speed drill, particularly where it is necessary to trim or remove a portion of the patients toe nail. In many instances, the toe nail becomes extremely hard and diiicult to cut by normal nail-cutting tools. In cases of this type, the podiatrist will use the drill provided with a suitable burr or cutting tool to obtain the desired cutting action. The high-speed drill, in conjunction with a properly selected burr, provides an excellent tool for removing the nail, but suffers the serious disadvantage of producing minute dust particles which permeate the operating room and settle on the equipment, the toes and feet of the patient, and on the hands and person of the podiatrist. This dust, if inhaled by the patient or podiatrist, is believed to be detrimental to the health of the person involved, and in some instances is believed to be one of the causes of lung silicosis, or mycotic lung infection, particularly when the person is subjected to inhalation of the dust over a period of years. This is particularly believed to be the case Where hypertrophied nails, mycotic or otherwise, are subjected to the drilling operation. The above-indicated serious disadvantage of the drilling operation isbelieved to be effectively reduced by applicants invention to the point where it is no longer a hazard.
One of the objects of the present invention is to provide an improved grinding device for nails and the like that is of simple design and construction, thoroughly reliable and efficient in operation, and economical to manufacture.
Another object of this invention is to provide an improved grinding device containing a burr for grinding nails or the like in which substantially all of the dust produced thereby is captured.
till another object of the invention is to provide an improved grinding device in which approximately 90 percent of the dust produced during a drilling operation is prevented from settling upon the equipment, the toes and feet of the patient, and on the hands and person of the operator, and from permeating and contaminating the air in the room.
A further object of this invention is to provide an improved grinding device for nails or the like which is believed to substantially eliminate any danger to the health of the operator.
A more specific object of the invention is to provide an improved grinding device for nails or the like having a transparent hood mounted over the burr, and vacuum means connected to the hood for removing the dust particles formed during the drilling operation.
Another specilic object of this invention is to provide an improved grinding device for nails or the like having a transparent hood mounted over the burr of the drill that magnies the nail and burr.
Still another specific object of this invention is to provide an improved grinding device for toe nails or the like including a transparent magnifying hood in register with a drill burr for magnifying the nail and burr and catching the dust developed during the drilling operation and guiding it to a vacuum source.
Another object of the invention is to provide an improved holding device for releasably supporting a grinding means including a burr at an angle with respect to the ice axis of the holding device to direct the dust developed during a grinding operation to the mouth of an opening connected to a vacuum source.
Objects and advantages other than those set forth above will be apparent from the following description when read in connection with the accompanying drawing, in which:
FIG. l is a side elevation view partially in section of a preferred embodiment of the grinding device 0f this invention;
FIG. 2 is a bottom view of the grinding device of FIG. l with the hose, hose fitting, clamp and drill removed for purposes of clarity;
FIG. 3 is a front end View of the grinding device of FIG. 2;
FIG. 4 is a rear end View of the grinding device of FIG. 2; and
FIG. 5 is a side elevation view of the clamp for releasably holding the drill to the cleaning head.
As seen in the drawing, the grinding device 6 essentially comprises an elongated cylindrical cleaning head 7 of a size adapted to snugly t in the hand of the operator, and formed from a transparent moldable material such as Plexiglas or Lucite. One end of head 7 as seen best in FIG. l is molded to form a semi-circular hood 8 in which the radii of the top surface 9 is approximately 0.5 and the radii of the lower surface 1li is approximately 0.75. Consequently, hood 3 forms a deep meniscus lens or magnifying glass which when interposed between an object and the viewer serves to magnify the object. The head 7 further has an elongated opening 11 extending therethrough, and one end 12 thereof terminates at the lower surface of hood 8 and ares outwardly as seen in FIG. 2, and its opposite end 13 is threaded for receiving a threaded fitting 1dof any known type. A tube 15 has one end secured to threaded tting 14 by a knurled nut 16, and its opposite end connected to any suitable source of vacuum, not shown, such as any commercially available Vacuum cleaner. The cylindrical head 7 further has an elongated axially extending peripheral V-shaped groove 17 as best seen in FIGS. 2, 3 and 4, and the bottom or root of groove 17 is inclined approximately 2 degrees with respect to the axis designated A of head 7 as seen in FIG. l, and the depth D1 of groove 1'7 at one end (see FIG. 2) is greater than the depth D at its opposite end for a purpose to be explained hereinafter. The root of groove 17 forms a seat for a drill 18 which is releasably held against the seat by a spring clamp 19, as seen best in FIGS. 1 and 5, encircling cylindrical head 7. The cylindrical head 7 has a peripheral recess 21 as seen in FIG. 2 into which spring clamp 19 seats for preventing movement of clamp 19 axially along head 7. The drill 13 is of any well-known commercial type in use in industry today, particularly in the dental profession, having means for releasably holding a burr 22 at one end, and drivingly conrncting burr 22 by means of a flexible shaft 23 to a high-speed driving motor, not shown, for rotatably driving same. The drill 18 is manually slid along groove 17 underneath clamp 19 by the operator. A burr 22 is secured to drill 18 and the drill axially moved by the operator along groove 17 until burr 22 is properly centered under hood 8. By virtue of the inclination of groove 17, the axis of the burr 22 which is parallel thereto is inclined with respect to axis A placing the burr in a more favorable cutting position with respect to an object for throwing any dust produced by its rotation into engagement with the flared end l2 of opening 11. In addition, by virtue of the groove inclination, the burr is moved closer to the flared end 12 resulting in better dust removal from the object and less contamination of the surrounding air.
In the operation of this invention, the operator secures .9 a burr 22 to drill 18, and then turns on the drive motor for rotatably driving the burr at a high rate of speed. The operator grasps cylindrical head 7 in one hand and manipulates the head bringing burr 22 into engagement with an object to be worked upon such as a nail of a patients toe. The operator views the object through hood 8 giving him an enlarged picture of the object and the burr 22 to aid the operator in his work. The dust produced by burr 22 is thrown by the rotation of the burr into engagement with the liared end 12 of opening 11 and drawn by the vacuum source into some suitable receptacle, not shown. Consequently, very little of the dust escapes around the edges of hood 8.
The invention has been described in detail with particular reference to a preferred embodiment thereof, but it will be understood that variations and modieations can be effected within the spirit and scope of the invention as described hereinabove and as defined in the appended claims.
I claim:
1. A holding device for releasably supporting a grinding means including a burr, and further adapted to be connected to a vacuum source, comprising:
a substantially cylindrical unitary member having its outer periphery at one end forming a handle, and having a transparent suction hood at the opposite end adapted to overlie a burr and through which the operator can observe the grinding action;
said member having an axially extending longitudinal groove for receiving said grinding means with the root of said groove being inclined with respect to the axis of said unitary member so that the depth of said groove-at the end of said member having said suction hood is greater than the depth of said groove at the opposite end of said member; and
said member further having passage means extending from the under side of said hood to said one end for connection with a vacuum source.
2. In a grinding device connectable to suitable power and vacuum sources, the combination comprising:
grinding means including a burr connectable to a power source and adapted to be driven thereby; and
support means for supporting said grinding means, said support means comprising:
a substantially cylindrical unitary member having its outer periphery at one end forming a handle, and having a transparent suction hood at the opposite end overlying the burr and through which the operator can observe the grinding action, said member having an axially extending longitudinal groove for receiving said grinding means with the root of said groove being inclined with respect to the axis of said member so that the depth of said groove at the end of said member having said suction hood is greater than the depth of said groove at the opposite end of said member; and
said support means further having passage means connecting the underside of said hood to a vacuum source whereby any dust particles produced during the grinding operation are caught by said hood and drawn to said vacuum source through said passage means.
3. The invention according to claim 2 wherein said hood forms a magnifying meniscus lens,
4. The invention according to claim 3 wherein said lens has an outer surface having a radius of approximately 0.5 inch, and an inner surface having a radius of approx* imately 0.75 inch.
References Cited in the lile of this patent UNITED STATES PATENTS 1,091,522 McLean Mar. 31, 1914 1,093,049 Hawley Apr. 14, 1914 1,175,274 Klorer Mar. 14, 1916 1,211,101 Davis Jan. 2, 1917 1,275,847 Chertok Aug. 13, 1918 1,816,301 Sundell July 31, 1931 1,977,088 Richardson Oct. 16, 1934 2,232,505 Abbott Feb. 18, 1941 2,429,356 Hicks Oct. 21, 1947 2,586,723 Sakols Feb. 19, 1952 2,773,337 DeMarchi Dec. 11, 1956 2,835,084 Fotre May 20, 1958 2,979,867 Beaver Apr. 18, 1961

Claims (1)

  1. 2. IN A GRINDING DEVICE CONNECTABLE TO SUITABLE POWER AND VACUUM SOURCES, THE COMBINATION COMPRISING: GRINDING MEANS INCLUDING A BURR CONNECTABLE TO A POWER SOURCE AND ADAPTED TO BE DRIVEN THEREBY; AND SUPPORT MEANS FOR SUPPORTING SAID GRINDING MEANS, SAID SUPPORT MEANS COMPRISING: A SUBSTANTIALLY CYLINDRICAL UNITARY MEMBER HAVING ITS OUTER PERIPHERY AT ONE END FORMING A HANDLE, AND HAVING A TRANSPARENT SUCTION HOOD AT THE OPPOSITE END OVERLYING THE BURR AND THROUGH WHICH THE OPERATOR CAN OBSERVE THE GRINDING ACTION, SAID MEMBER HAVING AN AXIALLY EXTENDING LONGITUDINAL GROOVE FOR RECEIVE SAID GRINDING MEANS WITH THE ROOT OF SAID GROOVE BEING INCLINED WITH RESPECT TO THE AXIS OF SAID MEMBER SO THAT THE DEPTH OF SAID GROOVE AT THE END OF SAID MEMBER HAVING SAID SUCTION HOOD IS GREATER THAN THE DEPTH OF SAID GROOVE AT THE OPPOSITE END OF SAID MEMBER; AND SAID SUPPORT MEANS UNDERSIDE FURTHER HAVING PASSAGE MEANS CONNECTING THE UNDERSIDE OF SAID HOOD TO A VACUUM SOURCE WHEREBY ANY DUST PARTICLES PRODUCED DURING THE GRINDING OPERATION ARE CAUGHT BY SAID HOOD AND DRAWN TO SAID VACUUM SOURCE THROUGH SAID PASSAGE MEANS.
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Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB395889I5 (en) * 1973-09-10 1975-01-28
US4124956A (en) * 1977-07-22 1978-11-14 Levinson Lewis R Cutting system with debris vacuuming means
US4226054A (en) * 1978-04-20 1980-10-07 David Coty Particle collection system
US4245437A (en) * 1977-11-23 1981-01-20 Miksa Marton Rotary tool suction housing
US4253362A (en) * 1979-08-13 1981-03-03 Olson Larry E Apparatus for collecting sawdust produced by a circular power saw
US4275749A (en) * 1978-06-05 1981-06-30 Celso Caroli Electrically driven continuous tooth brush
US4422239A (en) * 1980-10-11 1983-12-27 Peter Maier Powered handtool
US4440045A (en) * 1982-06-01 1984-04-03 Aksamit Frank J Chain saw sharpener
US4671708A (en) * 1986-01-22 1987-06-09 James Hurd Debris collector and cooler
US4683897A (en) * 1985-05-08 1987-08-04 Mcbride Julia K Electric nail filing device
US5220753A (en) * 1990-09-04 1993-06-22 Whitman Robert S Safety vacuum shield for flexible cable and motor tool
DE4432522A1 (en) * 1994-09-13 1995-04-20 Otto Becker Fingernail and toenail filing and polishing device
US5584690A (en) * 1995-10-12 1996-12-17 Maassarani; Sami Dental cleaning assembly
US5643062A (en) * 1995-05-23 1997-07-01 James R. Joseph Manicure machine
US5915966A (en) * 1998-09-10 1999-06-29 Miller; William J. Tooth crown preparation system
US6210261B1 (en) * 1998-11-16 2001-04-03 James E. Johnson Tool protective shield
US6561887B2 (en) * 2000-02-17 2003-05-13 Bao Shyan Lai Protective cover detachably installed on a cutting machine/engraving machine combination
US20030143926A1 (en) * 2002-01-30 2003-07-31 Raffi Piliguian Grinding or polishing arrangement
US6799579B2 (en) 2003-01-29 2004-10-05 James R. Joseph Fingernail and toenail shaping apparatus
US20050098188A1 (en) * 1997-07-10 2005-05-12 Dalibor Blazek File, particularly nail file
US20070060936A1 (en) * 2005-09-12 2007-03-15 Arthrex, Inc. Surgical abrader with clear hood
US20090151740A1 (en) * 2007-12-16 2009-06-18 Kevin Le Multi-Functional Particle Collection System
WO2009098675A3 (en) * 2008-02-04 2010-03-11 Orit Keinan A nail filing apparatus
US20100236565A1 (en) * 2009-03-20 2010-09-23 Products Of Tomorrow, Inc. Nail groomer
US20110004215A1 (en) * 2005-09-12 2011-01-06 Bradley James P Labrum retracting burr
US20120186405A1 (en) * 2011-01-21 2012-07-26 Ortiz Steven A Vacuum Shroud for Frangible Collar Retrieval
US20130115863A1 (en) * 2011-11-08 2013-05-09 Akira Mizutani Dust collecting attachment for electric power tool and electric power tool
US20150182084A1 (en) * 2014-01-02 2015-07-02 M.D.C. Romani, Inc. Tool dust control attachment
US20200087008A1 (en) * 2018-09-18 2020-03-19 Bharat Bihani Method to Distribute a Single Use Podiatry Bur
US20220079731A1 (en) * 2020-09-16 2022-03-17 Michael Maurice Blank Ultrasonic umbrella

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* Cited by examiner, † Cited by third party
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US1091522A (en) * 1913-12-06 1914-03-31 David W Mclean Moistening device for dental-engine handpieces.
US1093049A (en) * 1912-09-30 1914-04-14 G H Brown Apparatus for recovering gold-dust.
US1175274A (en) * 1915-03-09 1916-03-14 Joseph E Zang Chip-guard.
US1211101A (en) * 1916-04-20 1917-01-02 Frank B Davis Dust-catcher.
US1275847A (en) * 1916-12-08 1918-08-13 Moses A Chertok Receiving-hopper for metal scraps filings.
US1816301A (en) * 1930-07-07 1931-07-28 Carl J Sundell Hose clamp
US1977088A (en) * 1932-01-27 1934-10-16 Robert B Richardson Combination holder, guard, and hood for portable grinding wheels
US2232505A (en) * 1939-12-27 1941-02-18 Charles F Abbott Electric wire mounting device
US2429356A (en) * 1947-01-10 1947-10-21 Richard J Hicks Surgical cutter guard
US2586723A (en) * 1948-09-25 1952-02-19 Sakols Sidney Illuminated magnifying lens
US2773337A (en) * 1954-07-26 1956-12-11 Marchi Arturo De Grinding device
US2835084A (en) * 1955-09-22 1958-05-20 Scholl Mfg Co Inc Protective shield for portable abrading device
US2979867A (en) * 1957-07-24 1961-04-18 Edward J Beaver Grinder and attachment therefor

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1093049A (en) * 1912-09-30 1914-04-14 G H Brown Apparatus for recovering gold-dust.
US1091522A (en) * 1913-12-06 1914-03-31 David W Mclean Moistening device for dental-engine handpieces.
US1175274A (en) * 1915-03-09 1916-03-14 Joseph E Zang Chip-guard.
US1211101A (en) * 1916-04-20 1917-01-02 Frank B Davis Dust-catcher.
US1275847A (en) * 1916-12-08 1918-08-13 Moses A Chertok Receiving-hopper for metal scraps filings.
US1816301A (en) * 1930-07-07 1931-07-28 Carl J Sundell Hose clamp
US1977088A (en) * 1932-01-27 1934-10-16 Robert B Richardson Combination holder, guard, and hood for portable grinding wheels
US2232505A (en) * 1939-12-27 1941-02-18 Charles F Abbott Electric wire mounting device
US2429356A (en) * 1947-01-10 1947-10-21 Richard J Hicks Surgical cutter guard
US2586723A (en) * 1948-09-25 1952-02-19 Sakols Sidney Illuminated magnifying lens
US2773337A (en) * 1954-07-26 1956-12-11 Marchi Arturo De Grinding device
US2835084A (en) * 1955-09-22 1958-05-20 Scholl Mfg Co Inc Protective shield for portable abrading device
US2979867A (en) * 1957-07-24 1961-04-18 Edward J Beaver Grinder and attachment therefor

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB395889I5 (en) * 1973-09-10 1975-01-28
US3913190A (en) * 1973-09-10 1975-10-21 Saco Lowell Corp Spindle whirl cleaner
US4124956A (en) * 1977-07-22 1978-11-14 Levinson Lewis R Cutting system with debris vacuuming means
US4245437A (en) * 1977-11-23 1981-01-20 Miksa Marton Rotary tool suction housing
US4226054A (en) * 1978-04-20 1980-10-07 David Coty Particle collection system
US4275749A (en) * 1978-06-05 1981-06-30 Celso Caroli Electrically driven continuous tooth brush
US4253362A (en) * 1979-08-13 1981-03-03 Olson Larry E Apparatus for collecting sawdust produced by a circular power saw
US4422239A (en) * 1980-10-11 1983-12-27 Peter Maier Powered handtool
US4440045A (en) * 1982-06-01 1984-04-03 Aksamit Frank J Chain saw sharpener
US4683897A (en) * 1985-05-08 1987-08-04 Mcbride Julia K Electric nail filing device
US4671708A (en) * 1986-01-22 1987-06-09 James Hurd Debris collector and cooler
US5220753A (en) * 1990-09-04 1993-06-22 Whitman Robert S Safety vacuum shield for flexible cable and motor tool
DE4432522A1 (en) * 1994-09-13 1995-04-20 Otto Becker Fingernail and toenail filing and polishing device
US5643062A (en) * 1995-05-23 1997-07-01 James R. Joseph Manicure machine
US5584690A (en) * 1995-10-12 1996-12-17 Maassarani; Sami Dental cleaning assembly
US20050098188A1 (en) * 1997-07-10 2005-05-12 Dalibor Blazek File, particularly nail file
US5915966A (en) * 1998-09-10 1999-06-29 Miller; William J. Tooth crown preparation system
US6210261B1 (en) * 1998-11-16 2001-04-03 James E. Johnson Tool protective shield
US6561887B2 (en) * 2000-02-17 2003-05-13 Bao Shyan Lai Protective cover detachably installed on a cutting machine/engraving machine combination
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