US3771773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and device for intermixing two or more components to make up a substance, especially for dentistry
Assignee: Individual
•
Filing: 1971-11-30
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Granted: 1973-11-13
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Expires: 1991-11-30
Abstract
Abstract A method of and arrangement for intermixing two or more components according to which the components or at least some of them are in measured quantities contained in separate thin bags arranged within and connected to a hose-shaped container which is subjected to pressure sufficient to break the bags while the hose-shaped container which does not break at this pressure is worked to cause the contents of the broken bags to intermix.
Inventors
- 👤 K Schriever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:47
CPC Classifications
A; A61; A61C; A61C9/00; A61C9/0026; B; B01; B01F; B01F31/00; B01F31/55
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
103 words
A method of intermixing at least two components to form a mold substance, especially for use in dentistry, which includes in combination the steps of: enclosing a quantity of at least one of said components separately in thin bag means adapted to break when being subjected to a certain desired kneading pressure, preparing an elastic hose-shaped container stronger than said bag means, firmly securing said bag means in said container, and subjecting said container to a pressing action at a pressure sufficient to break said bag means and to mix the component thereof with another component within said container without breaking the latter.
Claim 2
Independent Claim
103 words
A method of intermixing at least two components to form a mold substance, especially for use in dentistry, which includes in combination the steps of: enclosing a quantity of at least one of said components separately in thin bag means adapted to break when being subjected to a certain desired kneading pressure, preparing an elastic hose-shaped container stronger than said bag means, firmly securing said bag means in said container, and subjecting said container to a pressing action at a pressure sufficient to break said bag means and to mix the component thereof with another component within said container without breaking the latter.
Claim 3
Dependent Claim
32 words
A method in combination according to claim 1, which includes filling said bag means and hose-shaped container with silicone rubber forming components and sealing said bag means and components in a vacuum.
Claim 4
Dependent Claim
32 words
A method in combination according to claim 2, which includes the preliminary step of coating said container with a water repellent fluid selected from the group consisting of lacquers and silicone oils.
Claim 5
Dependent Claim
19 words
A method in combination according to claim 3, which includes the preliminary step of first dehumidifying the hose-shaped container.
Claim 6
Dependent Claim
110 words
An arrangement for intermixing at least two components to form a substance, which includes a hose-shaped container bag means of thin material containing at least one of said components of the substance to be formed and being adapted to break when subjected to a certain desired pressure, said bag means being firmly secured within and to said container, said container being sealed and being of a considerably stronger, flexible material than said bag means so as not to break when subjected to a pressure breaking said bag means, and a plurality of roller means movable relative toward and away from each other for selectively receiving therebetween and working said container.
Claim 7
Dependent Claim
110 words
An arrangement for intermixing at least two components to form a substance, which includes a hose-shaped container bag means of thin material containing at least one of said components of the substance to be formed and being adapted to break when subjected to a certain desired pressure, said bag means being firmly secured within and to said container, said container being sealed and being of a considerably stronger, flexible material than said bag means so as not to break when subjected to a pressure breaking said bag means, and a plurality of roller means movable relative toward and away from each other for selectively receiving therebetween and working said container.
Claim 8
Dependent Claim
20 words
An arrangement according to claim 5, which includes timing means operatively connected to said roller means for controlling the same.
Claim 9
Dependent Claim
46 words
An arrangement according to claim 6, which includes signalling means operatively connected to sAid timing means for sending out a first signal when the pot time of the mixture has expired and for sending out a second signal when the mixture has reached a desired combination.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |