US3271011A - Metering and mixing device for dental materials - Google Patents

Metering and mixing device for dental materials Download PDF

Info

Publication number
US3271011A
US3271011A US408973A US40897364A US3271011A US 3271011 A US3271011 A US 3271011A US 408973 A US408973 A US 408973A US 40897364 A US40897364 A US 40897364A US 3271011 A US3271011 A US 3271011A
Authority
US
United States
Prior art keywords
dental materials
mixing
metering
mixing device
pockets
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.)
Expired - Lifetime
Application number
US408973A
Other languages
English (en)
Inventor
Rohm Fritz
Ahrens Wilhelm
Strahle Heinz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DR WALTER U SCHMITT GmbH
Original Assignee
DR WALTER U SCHMITT GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DR WALTER U SCHMITT GmbH filed Critical DR WALTER U SCHMITT GmbH
Application granted granted Critical
Publication of US3271011A publication Critical patent/US3271011A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/60—Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
    • A61C5/68—Mixing dental material components for immediate application to a site to be restored, e.g. a tooth cavity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/70—Drives therefor, e.g. crank mechanisms

Definitions

  • This invention relates to a mechanically driven mixing device including a vibrator for mixing dental materials used in the filling of teeth.
  • the material mixing apparat-us is combined with a material metering valve to form a single unit.
  • An apparatus of this general type is disclosed in the published German application DAS 1,101,692.
  • This invention is basically composed of a dental materials mixing device attached to a vibrator and connected to a drive motor having a timer switch. It is formed in one unit which includes hoppers for holding the dental materials and a metering valve shaft mounted beneath .the hoppers. In addition, the device is provided with a mechanical locking means adapted to engage the metering valve shaft and controlled by the timer switch.
  • FIGURE 1 is a side elevational view partly in section of this invention
  • FIGURE 2 is a cross-sectional view taken on 22 of FIGURE 1;
  • FIGURE 3 is a circuit diagram showing the connections between the motor, the timer, and the mechanical locking means.
  • the device is composed of a housing containing material holding hoppers 12 and 14. Beneath the hoppers is a metering valve shaft 16 containing material receiving pockets 12a and 14a, respectively. This metering valve shaft is extended outside of the housing 10 and terminates in a turning knob 20. In the position shown in FIGURE 1, the pockets receive the dental materials, and by turning knob 20, these pockets discharge the dental materials into a mixing chamber 22.
  • the housing 10 is vibrated by a motor, not shown.
  • a disc 24 is attached to shaft 16 and has a notch 26 in its periphery. Attached to the housing 10 by a bracket 28 is a solenoid 30 having a plunger 32, The outer end of the plunger has a lug or tongue 36. A spring 38 bears against a flange 39 fastened to plunger 32 to hold lug 36 normally engaged with notch 26 to form a mechanical locking means for valve shaft 16.
  • the solenoid 30 is connected in parallel with the vibrating and mixing motor 40 and in series with the timer switch 42.
  • the lug 36 is in engagement with the notch 26 so that the knob 20 and metering valve shaft 16 cannot be turned.
  • the circuit is energized by turning on the timer switch 42, the entire device is vithe line "ice brated by motor 40, and at the same time, the plunger 32 in the solenoid 30 withdraws the lug 36 from the notch 26. This ensures that the vibrating device will first fill the pockets 12a and 14a completely and uniformly before the knob 20 can be turned.
  • the Vibrations ensure that the pockets 12a and 14a will be complete-1y emptied and that the materials will be completely mixed as long as motor 40 is running.
  • the motor 40 and the solenoid 30 are constructed to be operated on either a v. or a 220 v. electrical ci-rcuit.
  • the mechanical lock composed of the solenoid 30 results in less deviation in the mixture of the dental ma terials 'because of making sure that the device is vibrate-d by the switch and motor circuit during the metering and mixing of the dental materials.
  • the actual mixing weights varied from *-0.2 to 0.8%, whereas heretofore variations of :13 to 2.7% occurred.
  • This decrease in the percent of Variations is due to the fact that the measuring pockets are always uniformly and fully filled and thereafter these pockets are completely emptied without leaving any residue in the pockets.
  • This invention is especially suitable when used with a mixing device having a substantially horizontally positioned tube comprising part of the mixing chamber and which is used to simultaneously mix and feed the mixed material into a cup fastened to the end of the tube.
  • a power driven mixing device for metering and mixing dental materials and having a plurality of hoppers for holding dental materials, a pocketed metering valve shaft rotatably mounted beneath said hoppers, electric motor means for shaking said device, and timer switch means joined to said motor, the improvement comprising a disc secured to said shaft, a notch in the periphery of said disc, solenoid locking means act-ua-table by said timer switch means engageable with said notch to prevent the rotation of said shaft until said motor means has started, and spring means for holding said solenoid means normally engaged with said notch.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Chemical & Material 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)
  • Accessories For Mixers (AREA)
US408973A 1963-11-06 1964-11-04 Metering and mixing device for dental materials Expired - Lifetime US3271011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW35574A DE1212673B (de) 1963-11-06 1963-11-06 Dosier- und Mischgeraet fuer die Mischungsbestandteile von Zahnfuellungen

Publications (1)

Publication Number Publication Date
US3271011A true US3271011A (en) 1966-09-06

Family

ID=7600948

Family Applications (1)

Application Number Title Priority Date Filing Date
US408973A Expired - Lifetime US3271011A (en) 1963-11-06 1964-11-04 Metering and mixing device for dental materials

Country Status (9)

Country Link
US (1) US3271011A (da)
BE (1) BE655283A (da)
CH (1) CH454351A (da)
DE (1) DE1212673B (da)
DK (1) DK107051C (da)
FI (1) FI44447B (da)
GB (1) GB1058497A (da)
NL (1) NL6412931A (da)
SE (1) SE309083B (da)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534943A (en) * 1967-04-20 1970-10-20 Degussa Dental material measuring apparatus
US3814387A (en) * 1971-12-01 1974-06-04 Degussa Apparatus for dosing and mixing liquid or solid materials for dental purposes
US4139030A (en) * 1977-01-17 1979-02-13 Engelhard Minerals & Chemicals Corporation Amalgam dispensing device
US5927851A (en) * 1997-04-07 1999-07-27 Raytheon Company Vibrating dispenser and method for dispensing filled epoxy adhesives

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US420385A (en) * 1890-01-28 Feed-regulator
CH89838A (de) * 1920-10-06 1921-11-16 Trey A G Geb De Vorrichtung zur Messung von mehreren Mischsubstanzen in gegebenem Verhältnis, insbesondere für zahntechnische Zwecke.
US1866294A (en) * 1929-11-13 1932-07-05 Edward L Chott Mercury dispenser
US2779502A (en) * 1954-08-16 1957-01-29 Jr Arthur H Ackerman Mixing dispenser
US2800256A (en) * 1954-01-04 1957-07-23 Nuzzo Salvatore A Di Flowable-material dispenser
US2844284A (en) * 1955-07-29 1958-07-22 Jr Arthur H Ackerman Dispensing apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US420385A (en) * 1890-01-28 Feed-regulator
CH89838A (de) * 1920-10-06 1921-11-16 Trey A G Geb De Vorrichtung zur Messung von mehreren Mischsubstanzen in gegebenem Verhältnis, insbesondere für zahntechnische Zwecke.
US1866294A (en) * 1929-11-13 1932-07-05 Edward L Chott Mercury dispenser
US2800256A (en) * 1954-01-04 1957-07-23 Nuzzo Salvatore A Di Flowable-material dispenser
US2779502A (en) * 1954-08-16 1957-01-29 Jr Arthur H Ackerman Mixing dispenser
US2844284A (en) * 1955-07-29 1958-07-22 Jr Arthur H Ackerman Dispensing apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534943A (en) * 1967-04-20 1970-10-20 Degussa Dental material measuring apparatus
US3814387A (en) * 1971-12-01 1974-06-04 Degussa Apparatus for dosing and mixing liquid or solid materials for dental purposes
US4139030A (en) * 1977-01-17 1979-02-13 Engelhard Minerals & Chemicals Corporation Amalgam dispensing device
US5927851A (en) * 1997-04-07 1999-07-27 Raytheon Company Vibrating dispenser and method for dispensing filled epoxy adhesives

Also Published As

Publication number Publication date
CH454351A (de) 1968-04-15
DK107051C (da) 1967-04-17
FI44447B (da) 1971-08-02
NL6412931A (da) 1965-05-07
DE1212673B (de) 1966-03-17
BE655283A (da) 1965-03-01
GB1058497A (en) 1967-02-08
SE309083B (da) 1969-03-10

Similar Documents

Publication Publication Date Title
US3191642A (en) Automatic feeder of pulverulent body
US3640510A (en) Vacuum stirring device for dental materials
US3271011A (en) Metering and mixing device for dental materials
US3043479A (en) Automatic feeding apparatus
US3132769A (en) Powder dispensing device
JPH05131439A (ja) 粒状又は粉末状の物質の秤量装置及びこの装置を用いた生ゴムの混合方法
US3814387A (en) Apparatus for dosing and mixing liquid or solid materials for dental purposes
US3305222A (en) Apparatus for preparing batches of concrete
US2544210A (en) Apparatus for measuring, weighing, and loading loose materials into containers
US3814296A (en) Metering apparatus for plastic materials
US1205088A (en) Device for measuring materials for tooth-fillings.
US3533601A (en) Methods and apparatus for forming amalgams
US3887168A (en) Mixing apparatus
US3534943A (en) Dental material measuring apparatus
US3139270A (en) Power mixer
US4753533A (en) Fly ash batcher and mixer
US1768723A (en) Dispensing apparatus
US1456526A (en) Dental-amalgam machine
US4547660A (en) Feed box monitoring device
US2969893A (en) Constant weight feeder
US1902272A (en) Wafer dosing, filling, and sealing machine
US2509557A (en) Combination vibrator and mixer
SU756221A1 (ru) Устройство весового дозирования сыпучих веществ i
GB926666A (en) Improvements in or relating to containers for storing and discharging granular and powdery materials
US1489676A (en) Automatic weighing machine