US2419744A - Suction attachment for dental lathes - Google Patents

Suction attachment for dental lathes Download PDF

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Publication number
US2419744A
US2419744A US613335A US61333545A US2419744A US 2419744 A US2419744 A US 2419744A US 613335 A US613335 A US 613335A US 61333545 A US61333545 A US 61333545A US 2419744 A US2419744 A US 2419744A
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United States
Prior art keywords
dental
lathes
suction
motor
attachment
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Expired - Lifetime
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US613335A
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Earl E Thwaites
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Priority to US613335A priority Critical patent/US2419744A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/02Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools
    • A61C1/05Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools with turbine drive
    • A61C1/052Ducts for supplying driving or cooling fluid, e.g. air, water
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00Metal working
    • Y10S29/079Removable debris receptacle
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00Metal working
    • Y10S29/083Fan coaxial with cutter

Definitions

  • This invention relates to a suction attachment for dental lathes.
  • An object of the invention is to provide an attachment of the character described specially designed for accumulating grindings from the lathe grinding disc and depositing the same in a suitable receptacle provided for the purpose.
  • Another object of the invention is to provide an attachment of the character described embodying novel means for mounting the same on the lathe motor.
  • the invention further embodies a suction attachment which will accumulate the fine grindings and dust to prevent the circulation of the same about the room and which is equipped with a baffie that will exclude the larger and heavier particles given off from the work and prevent them from reaching the receptacle.
  • Figure 1 is a plan view of the lathe with the attachment applied thereto and shown in section.
  • Figure 2 is a front elevation thereof.
  • Figure 3 is a transverse sectional View
  • Figure 4 is an end view, partly in section.
  • the numeral i designates the motor having the motor shaft 2 extending out each way.
  • the chucks 3, 4 which receive the respective spindles 5, 6 on which the grinding discs 1, B are fixed.
  • the numeral 9 designates a fan housing one end of which is fitted over the motor case and secured thereto by set screws H3 and whose other end is formed with a bearing l I which supports the fan hub 12 mount ed to rotate with the shaft 2. Screwed into the bearing H there is a flange nut 13 which closely surrounds the shaft 2. The flange nut 13 is adjacent the inner end of the chuck 3 and has 2.
  • a flange nut 15 similar to the nut I3, is screwed onto the adjacent hub of the motor and has a depending grip member l5 whereby it may be unscrewed to detach the chuck 4 from the motor shaft.
  • a flexible hose 20 is detachabli connected to the outlet pipe H3, at one end, and at its other'end is detachably connected to a flexible container 2
  • a tubular conduit 22 is fixed to one side of the motor and has a tubular nipple Z3 fitted into the inlet pipe l8.
  • Tubular elbows 23, 24 are each hinged, at one end, to the corresponding ends of the conduit 22 and at their other ends are formed into suction nozzles 25, 26, respectively, which are hood like in form and which may be swung into position to partially surround the corresponding discs I or 3 to receive the grindings therefrom. When not in use the hoods may be swung rearwardly out of the way.
  • baffles 2'! and 28 Mounted within the respective ends of the conduit 22 are the baffles 2'! and 28. These baflles are arranged at opposite ends of the conduit 22 and are fixed on the stems 29 and 30 which are mounted to rotate in suitable hearings in said conduit and whose outer ends have grip members for turning the same. Either baflle may be turned into the position indicated in Figure 1 in axial alignment with the passageway through the conduit 22 so as to permit all the grindings to pass or either baffle may be turned to transverse position so as to arrest the larger, heavier particles from the corresponding grinding disc 1 or 8, as the case may be, and to cause them to drop down and out of the nozzle thus allowing only the dust and finer floating particles to enter the receptacle 2
  • is made will collect not only the dust so as to keep the air in the room free of dust but will also collect the gold dust given off in grinding gold work so that the gold dust may be recovered.
  • a dental lathe having a motor, a motor shaft and chucks on the shaft to receive the grinder spindles; said attachment comprising, a housing having bearings one arranged to receive an adjacent part of the motor and the other to receive the shaft, fan blades on the shaft within said housing, flange nuts on the housing whose 5 outer ends are arranged adjacent the inner ends of the chucks, said nuts forming screw jacks efiective to detach the chucks from the shaft, an inlet conduitientering ,the sidelioi-itheihousing' toward the motor, said conduit being formed of hinged sections and terminating in nozzles adjustable into co-acting relation with the grinders, a discharge conduit leading from the housing and.
  • a suction attachment for a dental lathe comprising, a suction fan housing one endcrcfi;
  • said hub forming a:-.-bearing for the motor shaft; a grinder on said. shaft, an inlet pipe entering!.- the'--side of-the housing-toward thesmotor a suctionconduit-- adjacent .wthezimotori and connected into the inlet pipe,-a tubular'elbow hinged,-
  • the following references are of record in the file'of this-patent:

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Description

April 29, THWAH' SUCTION ATTACHMENT FOR DENTAL LATHES Filed Aug. 29, 1945 2 Sheets-Sheet l INVENTOR.
April 29, 1947- E. E. THWAITES 2,419,744
SUCTION ATTACHMENT FOR DENTAL LATHES Filed Aug. 29, 1945 2 Sheets-Sheet 2 Patented Apr. 29, 1947 SUCTION ATTACHMENT FOR DENTAL LATHES Earl E. Thwaites, Houston, Tex.
Application August 29, 1945, Serial No. 613,335
3 Claims.
This invention relates to a suction attachment for dental lathes.
An object of the invention is to provide an attachment of the character described specially designed for accumulating grindings from the lathe grinding disc and depositing the same in a suitable receptacle provided for the purpose.
Another object of the invention is to provide an attachment of the character described embodying novel means for mounting the same on the lathe motor.
It is a further object of the invention to provide an attachment of the character described having pivotally mounted suction nozzles that may be readily applied to the grinding discs with which the motor is equipped.
The invention further embodies a suction attachment which will accumulate the fine grindings and dust to prevent the circulation of the same about the room and which is equipped with a baffie that will exclude the larger and heavier particles given off from the work and prevent them from reaching the receptacle.
With the above and other objects in view the invention has particular relation to certain novel features of construction, operation and. arrangement of parts, an example of which is given in this specification and illustrated in the accompanying drawings, wherein:
Figure 1 is a plan view of the lathe with the attachment applied thereto and shown in section.
Figure 2 is a front elevation thereof.
Figure 3 is a transverse sectional View, and
Figure 4 is an end view, partly in section.
Referring now more particularly to the drawings wherein like numerals of reference designate the same parts in each of the figures. The numeral i designates the motor having the motor shaft 2 extending out each way. On the respective ends of the shaft are the chucks 3, 4 which receive the respective spindles 5, 6 on which the grinding discs 1, B are fixed. The numeral 9 designates a fan housing one end of which is fitted over the motor case and secured thereto by set screws H3 and whose other end is formed with a bearing l I which supports the fan hub 12 mount ed to rotate with the shaft 2. Screwed into the bearing H there is a flange nut 13 which closely surrounds the shaft 2. The flange nut 13 is adjacent the inner end of the chuck 3 and has 2. depending grip i l whereby it may be unscrewed. In unscrewing the nut l3 it acts as a jack against the inner end of the chuck 3 and is thereby rendered eifective to detach said chuck from the shaft. A flange nut 15, similar to the nut I3, is screwed onto the adjacent hub of the motor and has a depending grip member l5 whereby it may be unscrewed to detach the chuck 4 from the motor shaft.
On the hub [2 are the radial suction fan blades H which are located within the housing 9. Connected into the side of the fan housing facing the motor there is the inlet pipe l8 and leading from the periphery of the fan housing there is a discharge outlet pipe i9. A flexible hose 20 is detachabli connected to the outlet pipe H3, at one end, and at its other'end is detachably connected to a flexible container 2| preferably formed of fabric which will filter the air retaining the grindings given off from the grinding discs. A tubular conduit 22 is fixed to one side of the motor and has a tubular nipple Z3 fitted into the inlet pipe l8. Tubular elbows 23, 24 are each hinged, at one end, to the corresponding ends of the conduit 22 and at their other ends are formed into suction nozzles 25, 26, respectively, which are hood like in form and which may be swung into position to partially surround the corresponding discs I or 3 to receive the grindings therefrom. When not in use the hoods may be swung rearwardly out of the way.
Mounted within the respective ends of the conduit 22 are the baffles 2'! and 28. These baflles are arranged at opposite ends of the conduit 22 and are fixed on the stems 29 and 30 which are mounted to rotate in suitable hearings in said conduit and whose outer ends have grip members for turning the same. Either baflle may be turned into the position indicated in Figure 1 in axial alignment with the passageway through the conduit 22 so as to permit all the grindings to pass or either baffle may be turned to transverse position so as to arrest the larger, heavier particles from the corresponding grinding disc 1 or 8, as the case may be, and to cause them to drop down and out of the nozzle thus allowing only the dust and finer floating particles to enter the receptacle 2|. The filtering material of which the receptacle 2| is made will collect not only the dust so as to keep the air in the room free of dust but will also collect the gold dust given off in grinding gold work so that the gold dust may be recovered.
The drawings and description are illustrative merely while the broad principle of the inventionwill be defined by the appended claims.
What I claim is:
1. In a dental lathe having a motor, a motor shaft and chucks on the shaft to receive the grinder spindles; said attachment comprising, a housing having bearings one arranged to receive an adjacent part of the motor and the other to receive the shaft, fan blades on the shaft within said housing, flange nuts on the housing whose 5 outer ends are arranged adjacent the inner ends of the chucks, said nuts forming screw jacks efiective to detach the chucks from the shaft, an inlet conduitientering ,the sidelioi-itheihousing' toward the motor, said conduit being formed of hinged sections and terminating in nozzles adjustable into co-acting relation with the grinders, a discharge conduit leading from the housing and.
terminating in a receptacle for the grindings.
2. A suction attachment for a dental lathe comprising, a suction fan housing one endcrcfi;
which is attached to the lathenmotor and whose. other end is formed with a bearing, a fan in the housing having a hub which works in saidtbeare;
ing, said hub forming a:-.-bearing for the motor shaft; a grinder on said. shaft, an inlet pipe entering!.- the'--side of-the housing-toward thesmotor a suctionconduit-- adjacent .wthezimotori and connected into the inlet pipe,-a tubular'elbow hinged,-
at one end, to said suction conduit and whose other-iend terminates inia suction nozzle shaped to partly :surround the grinder, a discharge conduitlleadin'gout :from thei-housing and terminating'in" a receptacleto receive the grindings; l
3. A: suction attachment for: a -lathew-having grindersicomprising a suction fan housingone REFERENCES CITED The following references are of record in the file'of this-patent:
UNITED STATES PATENTS Number Name Date 502,883 Gould- Aug. 8, 1893 741,337 Hibbard Oct.*13, 1903-" 897,603 Duncan Septxl, 1908 1,086,745 Athy Feb. 10,- 1914 1,160,628 Lunden Nov. 16, 1915 1,177,199' Marschke et a1 Mar. 28, 1916 2,107,580 Parks et'a1.. Feb. 8, 1938 FOREIGN PATENTS :N umber Country Date 101,531 German Feb. '14, 1899 i
US613335A 1945-08-29 1945-08-29 Suction attachment for dental lathes Expired - Lifetime US2419744A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836937A (en) * 1956-04-09 1958-06-03 Richard T Cornelius Motor driven grinders
US3034493A (en) * 1959-07-24 1962-05-15 Charles R Bandy Suction sawdust collector
US3157009A (en) * 1963-05-15 1964-11-17 Evans Reamer And Machine Compa Combination abrading and exhaust unit
US4921375A (en) * 1987-06-12 1990-05-01 Tiziana Lenarduzzi Antiscattering device for the collection of waste material produced in the course of drilling, milling and similar operations, to be fitted on the relevant machine tools
US5033238A (en) * 1988-05-20 1991-07-23 Kurt Zubler Dental technician's work station
US5097636A (en) * 1990-10-26 1992-03-24 Crouch Machinery, Inc. Edge belt sander with swingable dust hood
US20080200104A1 (en) * 2007-02-21 2008-08-21 Po Chang Chuang High-efficiency dust collecting device with two gateways
US20100058911A1 (en) * 2008-09-11 2010-03-11 Jay Aaron Goddard Blade Guard for Power Tool Having an Evacuation System
CN101720486A (en) * 2007-05-14 2010-06-02 法国电力集团 Pellet shaped nuclear fuel with advanced structure

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE101531C (en) *
US502883A (en) * 1893-08-08 Dust-collector
US741337A (en) * 1902-12-04 1903-10-13 Manganese Steel Safe Company Grinding-machine.
US897603A (en) * 1900-07-09 1908-09-01 Northern Electrical Mfg Company Buffing and grinding apparatus.
US1086745A (en) * 1912-09-21 1914-02-10 Johnston & Jennings Company Attachment for lathes.
US1160628A (en) * 1915-03-18 1915-11-16 Jacob C Luden Dust-collecting machine.
US1177199A (en) * 1915-09-20 1916-03-28 Standard Machine And Electric Co Grinder.
US2107580A (en) * 1935-09-11 1938-02-08 Harry H Parks Shoe finishing apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE101531C (en) *
US502883A (en) * 1893-08-08 Dust-collector
US897603A (en) * 1900-07-09 1908-09-01 Northern Electrical Mfg Company Buffing and grinding apparatus.
US741337A (en) * 1902-12-04 1903-10-13 Manganese Steel Safe Company Grinding-machine.
US1086745A (en) * 1912-09-21 1914-02-10 Johnston & Jennings Company Attachment for lathes.
US1160628A (en) * 1915-03-18 1915-11-16 Jacob C Luden Dust-collecting machine.
US1177199A (en) * 1915-09-20 1916-03-28 Standard Machine And Electric Co Grinder.
US2107580A (en) * 1935-09-11 1938-02-08 Harry H Parks Shoe finishing apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836937A (en) * 1956-04-09 1958-06-03 Richard T Cornelius Motor driven grinders
US3034493A (en) * 1959-07-24 1962-05-15 Charles R Bandy Suction sawdust collector
US3157009A (en) * 1963-05-15 1964-11-17 Evans Reamer And Machine Compa Combination abrading and exhaust unit
US4921375A (en) * 1987-06-12 1990-05-01 Tiziana Lenarduzzi Antiscattering device for the collection of waste material produced in the course of drilling, milling and similar operations, to be fitted on the relevant machine tools
US5033238A (en) * 1988-05-20 1991-07-23 Kurt Zubler Dental technician's work station
US5097636A (en) * 1990-10-26 1992-03-24 Crouch Machinery, Inc. Edge belt sander with swingable dust hood
US20080200104A1 (en) * 2007-02-21 2008-08-21 Po Chang Chuang High-efficiency dust collecting device with two gateways
CN101720486A (en) * 2007-05-14 2010-06-02 法国电力集团 Pellet shaped nuclear fuel with advanced structure
US20100150300A1 (en) * 2007-05-14 2010-06-17 Electricite De France Nuclear fuel in the form of a pellet, with improved structure
US20100058911A1 (en) * 2008-09-11 2010-03-11 Jay Aaron Goddard Blade Guard for Power Tool Having an Evacuation System

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