WO1994016643A1 - Separateur a usage dentaire - Google Patents

Separateur a usage dentaire Download PDF

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Publication number
WO1994016643A1
WO1994016643A1 PCT/AT1993/000199 AT9300199W WO9416643A1 WO 1994016643 A1 WO1994016643 A1 WO 1994016643A1 AT 9300199 W AT9300199 W AT 9300199W WO 9416643 A1 WO9416643 A1 WO 9416643A1
Authority
WO
WIPO (PCT)
Prior art keywords
mixture
centrifuge
solids
inlet
bowl
Prior art date
Application number
PCT/AT1993/000199
Other languages
German (de)
English (en)
Inventor
Werner Trawöger
Bruno Pregenzer
Original Assignee
Trawoeger Werner
Bruno Pregenzer
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 Trawoeger Werner, Bruno Pregenzer filed Critical Trawoeger Werner
Priority to AU56870/94A priority Critical patent/AU5687094A/en
Priority to DE9320987U priority patent/DE9320987U1/de
Publication of WO1994016643A1 publication Critical patent/WO1994016643A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/06—Saliva removers; Accessories therefor
    • A61C17/065—Saliva removers; Accessories therefor characterised by provisions for processing the collected matter, e.g. for separating solids or air

Definitions

  • the invention relates to a dental separator with a removable collecting container for the common collection of solids, which is separated from a first solid-liquid mixture which is discharged from a suction air separating device under vacuum and from a second solid-liquid mixture be, which flows out of a dish by gravity, with a full jacket centrifuge, which has an inlet for the first solid-liquid mixture to be discharged from the vacuum, an outlet for the separated liquid, and a solid outlet through which after each centrifugation phase under the influence of gravity, solids with a residual liquid content in the
  • Such a separator is described, for example, in EP-A 432 142.
  • a pump and a centrifuge container are provided on a common drive shaft, the first solid-liquid mixture being introduced against the suction air vacuum into a mixture inlet chamber formed between the pump and the centrifuge container.
  • the outlet of the bowl also opens into the mixture inlet chamber, which is under normal pressure, so that the two mixtures are combined and separated into liquid and solids by the centrifuge.
  • Excess residual liquid which contains a solid component, is returned from the collecting container below the centrifuge to the centrifuge. Since the cuspidor drain opens freely into the centrifuge chamber, the sounds of the Transfer the running centrifuge to the outside via the drain pipe open into the room through the bowl. Since the centrifuge sucks in air through the open drain pipe, the gurgling noises are amplified and have a disruptive and annoying effect at the workplace.
  • the invention has now set itself the task of reducing the noise level in a separator of the type mentioned at the outset, and solves this by assigning the inlet for the bowl mixture to the collecting container.
  • the centrifuge is thus arranged with respect to the first mixture before and with respect to the second mixture after the collecting container, since from the first mixture all solids pass the centrifuge and then get into the collecting container, while only the non-sedimented part from the second mixture the solids are transported into the centrifuge.
  • the noise development is considerably lower, since no air is sucked in through the open cuspidor drain.
  • This design not only simplifies the assembly of the separator, especially when retrofitting existing workplaces, since the basic assembly bodies can be designed according to the respective local conditions, but also allows the harness sions, especially the length and width of the settling tank, regardless of the dimensions of the centrifuge housing, to which the settling tank is bound when attached directly to the centrifuge.
  • the centrifuge housing tapers towards the mounting base body and that the inlet for the bowl mixture is provided in the area of the mounting base body which has been left free from the tapering of the centrifuge housing.
  • an angle piece which can be pivoted about an axis perpendicular to the mounting base body, is preferably arranged in the recessed area for a connection which can be rotated in any direction.
  • a pump of the transfer device for the residual liquid is preferably provided coaxially below the centrifuge and can have its own drive motor. Pump and centrifuge can, however, also be operated by a common, intermediate drive motor, since the centrifuge must also work when the pump is running.
  • FIG. 1 schematically shows a separating device for separating suction air, solids and liquid
  • FIG. 2 shows a vertical section through a separator according to the invention.
  • a separating device consists of an air separating device 52 with an inflow line 53 for a first solid-liquid mixture sucked out of the mouth of a patient and a leading-away one
  • the separator 1 is located outside the vacuum system, ie between the air separation device 52 and a mixture inlet 61 for the first solid-liquid mixture there is a pump 51 and a check valve 50 on the rear side thereof.
  • the separator 1 is composed of a full-bowl centrifuge 5 and a collecting container 6 arranged under the centrifuge 5 for sedimentation of solids. Both are arranged on an assembly base 4, or the like on a dental chair. can be fastened, the collecting container 6, as can be seen in more detail in FIG. 2, from the mounting base 4 is held so that it can be removed downwards.
  • An inlet 2 is provided on the collecting container 6 for a second solid-liquid mixture coming from a bowl. The inlet 2 is therefore spatially separated from the centrifuge 5, so that the transmission of centrifuge noises via the cuspidor line 60 is reduced.
  • the mounting base 4 is provided with fastening bores, which are provided in particular on a separate adapter part 27. Depending on the given installation conditions, corresponding adapter parts 27 are then available with which the basic assembly body 4 can be provided. Further passage openings in the mounting base 4 are: an opening for receiving the motor 7 of the centrifuge 5 and a pump 9, an opening for inserting the solids drain 12 of the centrifuge 5, an opening for the passage of a connecting line 19, only shown schematically, between the pump 9 and the centrifuge 5, openings for fastening screws for fixing the centrifuge housing 8 and the pump housing 13 together, and the inlet 2 for the second solid-liquid mixture 60 coming from the bowl.
  • the centrifuge housing 8 fixed on the mounting base body 4 is tapered in the lower part, the motor 7 being arranged centrally, and above it contains two centrifuge containers 28 of the solid bowl centrifuge 5 arranged one inside the other. In the inner centrifuge container
  • a downwardly open groove 29 of the basic assembly body 4 serves to insert the collecting container 6. This is fixed by means of a bow-shaped locking element 70 which is about an axis 75 on the outer wall of the groove
  • the locking element 70 has two swivel arms 71 extending laterally outside of the collecting container 6 and a transverse web 72 connecting them. Each swivel arm 71 is assigned a web 77 running parallel to it, which engages in a pocket 68 of the collecting container 6 in the closed position.
  • the collecting container 6 is made of translucent plastic and has on it to the crosspiece 72 facing wall a protruding longitudinal rib 66.
  • the transverse web 72 is provided with tabs 73 which protrude parallel to the side walls of the longitudinal rib 66 and on which a sensor device 74 is formed.
  • This comprises at least one, in the exemplary embodiment shown two light barriers, each light beam penetrating the longitudinal rib 66 and serving to measure the sedimentation level of the solids.
  • the lower light barrier reacts at 95% of the maximum fill level with a warning signal, while when the second upper light barrier, which indicates the maximum fill level, responds, the separator, preferably the entire extraction system, is put out of operation.
  • the separator preferably the entire extraction system, is put out of operation.
  • the locking element 70 is pivoted upward, so that the webs 77 release the collecting container 6, which can then be removed downwards.
  • the sensor device 74 could also comprise further sensor elements which, for example, detect those two levels of the liquid collecting above the solids at which the motor 7 is switched on and off.
  • the pump housing 13 is fastened to the underside of the mounting body 4, and the connecting line 19 can be mounted on the upstanding connection 16 after the pump 9 and centrifuge 5 have been fastened.
  • a central suction pipe 14, which tapers conically in the uppermost part, is cylindrical in the middle part, and has circumferential openings in the bottom part, protrudes downward from the pump housing 13.
  • the pump 9 has an impeller 17 which comprises a hub 41, vanes 42 projecting radially therefrom and a hollow truncated cone 18 projecting downward into the conical part of the suction pipe 14.

Landscapes

  • Health & Medical Sciences (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)
  • Centrifugal Separators (AREA)

Abstract

Des solides provenant de deux mélanges solides-liquides acheminés séparément (60, 61) sont recueillis ensemble dans un séparateur à usage dentaire comprenant un récipient collecteur (6) séparable d'une centrifugeuse (5). Le premier mélange est évacué d'un dispositif de séparation à air aspiré (52) à dépression et est introduit dans la centrifugeuse (5). Le mélange solides-liquides s'écoule d'une cuvette de crachoir sous l'effet de la force de gravité et passe directement dans le récipient collecteur (6). Le liquide résiduel qui s'accumule au-dessus des solides est acheminé, au moyen d'un dispositif (9, 16, 19), dans la centrifugeuse (5) qui comporte un orifice d'admission (61) pour le premier mélange, un orifice de sortie (3) pour le liquide séparé et une évacuation pour les solides (12), qui aboutit dans le récipient collecteur (6).
PCT/AT1993/000199 1993-01-22 1993-12-27 Separateur a usage dentaire WO1994016643A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU56870/94A AU5687094A (en) 1993-01-22 1993-12-27 Dental trap
DE9320987U DE9320987U1 (de) 1993-01-22 1993-12-27 Zahnärztlicher Abscheider

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA96/93 1993-01-22
AT0009693A AT399457B (de) 1993-01-22 1993-01-22 Zahnärztlicher abscheider

Publications (1)

Publication Number Publication Date
WO1994016643A1 true WO1994016643A1 (fr) 1994-08-04

Family

ID=3481403

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1993/000199 WO1994016643A1 (fr) 1993-01-22 1993-12-27 Separateur a usage dentaire

Country Status (4)

Country Link
AT (1) AT399457B (fr)
AU (1) AU5687094A (fr)
DE (1) DE9320987U1 (fr)
WO (1) WO1994016643A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT510883A1 (de) * 2010-12-20 2012-07-15 Metasys Medizintechnik Gmbh Abscheider zum abscheiden von feststoffen aus einem zahnärztlichen abwassergemisch
US10646313B2 (en) 2016-10-12 2020-05-12 Solmetex, L.L.C. Dental amalgam separation and recycling system
US10779923B2 (en) 2016-10-12 2020-09-22 Solmetex, L.L.C. Detachable recycling container
AT524033B1 (de) * 2020-11-02 2022-02-15 Pregenzer Bruno Abscheider mit herausnehmbarem Zentrifugenbehälter
US11660175B2 (en) 2016-05-23 2023-05-30 Solmetex, Llc Detachable recycling container
US11963836B2 (en) 2016-10-12 2024-04-23 Solmetex Llc Detachable recycling container

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300439A2 (fr) * 1987-07-22 1989-01-25 Dürr-Dental GmbH & Co. KG Dispositif de séparation de particules solides fines
EP0400431A2 (fr) * 1989-05-23 1990-12-05 Dürr-Dental GmbH & Co. KG Dispositif séparateur
EP0432142A2 (fr) * 1984-12-17 1991-06-12 Werner Trawöger Séparateur dentaire
WO1992018062A1 (fr) * 1991-04-12 1992-10-29 Trawoeger Werner Separateur pour melange liquide-solide

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT394952B (de) * 1991-04-12 1992-08-10 Trawoeger Werner Abscheider zur trennung eines feststoff-fluessigkeitsgemisches

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432142A2 (fr) * 1984-12-17 1991-06-12 Werner Trawöger Séparateur dentaire
EP0300439A2 (fr) * 1987-07-22 1989-01-25 Dürr-Dental GmbH & Co. KG Dispositif de séparation de particules solides fines
EP0400431A2 (fr) * 1989-05-23 1990-12-05 Dürr-Dental GmbH & Co. KG Dispositif séparateur
WO1992018062A1 (fr) * 1991-04-12 1992-10-29 Trawoeger Werner Separateur pour melange liquide-solide

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT510883A1 (de) * 2010-12-20 2012-07-15 Metasys Medizintechnik Gmbh Abscheider zum abscheiden von feststoffen aus einem zahnärztlichen abwassergemisch
AT510883B1 (de) * 2010-12-20 2013-03-15 Alfred Konzett Abscheider zum abscheiden von feststoffen aus einem zahnärztlichen abwassergemisch
US11660175B2 (en) 2016-05-23 2023-05-30 Solmetex, Llc Detachable recycling container
US10646313B2 (en) 2016-10-12 2020-05-12 Solmetex, L.L.C. Dental amalgam separation and recycling system
US10779923B2 (en) 2016-10-12 2020-09-22 Solmetex, L.L.C. Detachable recycling container
US11963836B2 (en) 2016-10-12 2024-04-23 Solmetex Llc Detachable recycling container
AT524033B1 (de) * 2020-11-02 2022-02-15 Pregenzer Bruno Abscheider mit herausnehmbarem Zentrifugenbehälter
AT524033A4 (de) * 2020-11-02 2022-02-15 Pregenzer Bruno Abscheider mit herausnehmbarem Zentrifugenbehälter

Also Published As

Publication number Publication date
ATA9693A (de) 1994-10-15
DE9320987U1 (de) 1995-08-10
AT399457B (de) 1995-05-26
AU5687094A (en) 1994-08-15

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