GB1386312A - Manufacture of settable dental compositions - Google Patents
Manufacture of settable dental compositionsInfo
- Publication number
- GB1386312A GB1386312A GB4993472A GB4993472A GB1386312A GB 1386312 A GB1386312 A GB 1386312A GB 4993472 A GB4993472 A GB 4993472A GB 4993472 A GB4993472 A GB 4993472A GB 1386312 A GB1386312 A GB 1386312A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- capsule
- viscosity
- mixing
- terminated
- 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
Links
- 239000000203 mixture Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000002775 capsule Substances 0.000 abstract 5
- 238000005259 measurement Methods 0.000 abstract 2
- 230000003287 optical effect Effects 0.000 abstract 2
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000003479 dental cement Substances 0.000 abstract 1
- 239000005548 dental material Substances 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
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
- B01F31/20—Mixing the contents of independent containers, e.g. test tubes
- B01F31/27—Mixing the contents of independent containers, e.g. test tubes the vibrations being caused by electromagnets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/213—Measuring of the properties of the mixtures, e.g. temperature, density or colour
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0091—Powders
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Public Health (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
1386312 Controlling mixing by viscosity INOUE-JAPAX RESEARCH Inc 30 Oct 1972 49934/72 Heading B1C [Also in Division G1] Substances which combine to form a solid dental material such as a dental cement are mixed together, and the viscosity or optical properties of the mixture are continuously monitored so that mixing may be terminated when a desired degree of solidification has taken place. Viscosity measurements: in Fig. 1 a bifurcated arm 6 is vibrated to and fro by electromagnet 2. The arm is centered by springs 1f, and a capsule 7 is inserted into the bifurcated section. The capsule contains mercury 7a, alloy 7b, and an optional mixing pestle 7c. An electric signal representing the arm vibrations and harmonics is given by a strain gauge 8, a piezoelectric device or a microphone, it being found that the harmonic content of the signal is a measure of the viscosity of the amalgan formed in the capsule. The capsule may be retained by a screw passing through one of the arm bifurcations, and the arm may be driven through a spring and eccentric cam, Fig. 6 (not shown). Optical measurements: light may be reflected from the mixture within the capsule, or transmitted through it. In either case the light is focussed onto a photocell, photoconductor or other detector and its amplitude is compared with a preset value, mixing being terminated when the desired value is reached. For Figures see next column
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4993472A GB1386312A (en) | 1972-10-30 | 1972-10-30 | Manufacture of settable dental compositions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4993472A GB1386312A (en) | 1972-10-30 | 1972-10-30 | Manufacture of settable dental compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1386312A true GB1386312A (en) | 1975-03-05 |
Family
ID=10454056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4993472A Expired GB1386312A (en) | 1972-10-30 | 1972-10-30 | Manufacture of settable dental compositions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1386312A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2442075A1 (en) * | 1978-11-21 | 1980-06-20 | Carlew Chem Ltd | METHOD AND APPARATUS FOR MIXING MATERIAL LOADS IN A HIGH INTENSITY MIXER |
| DE3337403A1 (en) * | 1983-10-14 | 1985-05-02 | Seyd Fertigbeton Berlin, Zweigniederlassung der Readymix Transportbeton GmbH, 4030 Ratingen | Process and apparatus for preparing mixtures |
| USRE33214E (en) * | 1978-11-21 | 1990-05-15 | Carlew Chemicals Limited | Process for controlled mixing in a high intensity mixer |
| EP0631810A1 (en) * | 1993-06-29 | 1995-01-04 | Pfizer Inc. | Apparatus for mixing and detecting on-line homogeneity |
| US5946088A (en) * | 1994-05-03 | 1999-08-31 | Pfizer Inc. | Apparatus for mixing and detecting on-line homogeneity |
| ES2329536A1 (en) * | 2006-03-28 | 2009-11-26 | Rapanelli Fioravante Spa | Cushion of mixing or mixing watched interiorly with a digital telecamera system (Machine-translation by Google Translate, not legally binding) |
| RU2788161C1 (en) * | 2021-11-19 | 2023-01-17 | федеральное государственное автономное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" | Method for quality control of the mixture during its preparation in the mixer |
-
1972
- 1972-10-30 GB GB4993472A patent/GB1386312A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2442075A1 (en) * | 1978-11-21 | 1980-06-20 | Carlew Chem Ltd | METHOD AND APPARATUS FOR MIXING MATERIAL LOADS IN A HIGH INTENSITY MIXER |
| USRE33214E (en) * | 1978-11-21 | 1990-05-15 | Carlew Chemicals Limited | Process for controlled mixing in a high intensity mixer |
| DE3337403A1 (en) * | 1983-10-14 | 1985-05-02 | Seyd Fertigbeton Berlin, Zweigniederlassung der Readymix Transportbeton GmbH, 4030 Ratingen | Process and apparatus for preparing mixtures |
| EP0631810A1 (en) * | 1993-06-29 | 1995-01-04 | Pfizer Inc. | Apparatus for mixing and detecting on-line homogeneity |
| US5946088A (en) * | 1994-05-03 | 1999-08-31 | Pfizer Inc. | Apparatus for mixing and detecting on-line homogeneity |
| ES2329536A1 (en) * | 2006-03-28 | 2009-11-26 | Rapanelli Fioravante Spa | Cushion of mixing or mixing watched interiorly with a digital telecamera system (Machine-translation by Google Translate, not legally binding) |
| RU2788161C1 (en) * | 2021-11-19 | 2023-01-17 | федеральное государственное автономное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" | Method for quality control of the mixture during its preparation in the mixer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |