US5024790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glazing dental constructs
Assignee: Corning Inc
•
Filing: 1990-07-09
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Granted: 1991-06-18
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Expires: 2010-07-09
Abstract
Abstract A method of applying a surface glaze to a dental construct. The method includes associating glazing material with a carrier composed of a highly flexible and removable material, assembling the construct and carrier with the construct positioned within the carrier, forcing the carrier onto the construct by differential fluid pressure, removing the carrier, and maturing the glazing material to a glaze. The method finds particular application in applying coloration, either uniformly or in a pattern, to a dental construct.
Inventors
- 👤 David G. Grossman
- 👤 Michael A. Karnas
- 👤 Ronald E. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:21
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/08; A61C13/083; A61C13/0835
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
93 words
A method of glazing a dental construct having a complex surface which comprises associating glazing material with a carrier, the carrier being composed of a highly flexible and stretchable film or sheet of organic material, assembling the construct and carrier so that the construct is positioned adjacent the carrier, subjecting the assembly to a differential pressure treatment to force the carrier into intimate contact with the construct surface, removing the organic carrier to leave the glazing material on the construct surface, and maturing the glazing material to a glaze on the construct surface.
Claim 2
Independent Claim
93 words
A method of glazing a dental construct having a complex surface which comprises associating glazing material with a carrier, the carrier being composed of a highly flexible and stretchable film or sheet of organic material, assembling the construct and carrier so that the construct is positioned adjacent the carrier, subjecting the assembly to a differential pressure treatment to force the carrier into intimate contact with the construct surface, removing the organic carrier to leave the glazing material on the construct surface, and maturing the glazing material to a glaze on the construct surface.
Claim 3
Dependent Claim
19 words
A method in accordance with claim 1 wherein the glazing material is in the form of vitreous glaze particles.
Claim 4
Dependent Claim
23 words
A method in accordance with claim 2 wherein the glaze particles are admixed with one or more pigments to form a coloration pattern.
Claim 5
Dependent Claim
19 words
A method in accordance with claim 1 wherein the glazing material is in the form of curable organic materials.
Claim 6
Dependent Claim
17 words
A method in accordance with claim 1 wherein the dental construct is formed from a glass-ceramic material.
Claim 7
Dependent Claim
14 words
A method in accordance with claim 5 wherein the glass-ceramic is a tetrasilicic fluormica.
Claim 8
Dependent Claim
21 words
A method is accordance with claim 1 wherein the dental construct is formed at least in part of a dental porcelain.
Claim 9
Dependent Claim
17 words
A method in accordance with claim 1 wherein the dental construct is formed from an organic material.
Claim 10
Dependent Claim
17 words
A method in accordance with claim 1 wherein the dental construct is formed from a ceramic material.
Claim 11
Dependent Claim
18 words
A method in accordance with claim 1 wherein the dental construct is formed from a blank by milling.
Claim 12
Dependent Claim
17 words
A method in accordance with claim 1 wherein the carrier is in the nature of a decal.
Claim 13
Dependent Claim
17 words
A method in accordance with claim 11 wherein the carrier decal is removed by a silicone release.
Claim 14
Dependent Claim
16 words
A method in accordance with claim 11 wherein the carrier decal is removed by wax release.
Claim 15
Dependent Claim
14 words
A method in accordance with claim 1 wherein the organic carrier is water soluble.
Claim 16
Dependent Claim
17 words
A method in accordance with claim 1 wherein the carrier is formed from a thermoplastic elastomer film.
Claim 17
Dependent Claim
34 words
A method in accordance with claim 1 wherein the carrier is formed from a film having an elongation capability in the range of 100 to 1000% and a thickness of 0.5 to 2 mils.
Claim 18
Dependent Claim
29 words
A method in accordance with claim 2 wherein the glaze particles, alone or mixed with pigment, are associated with the carrier by application to a surface of the carrier.
Claim 19
Dependent Claim
31 words
A method in accordance with claim 2 wherein the glaze particles, alone or mixed with pigment, are associated with the carrier by intermingling the particles with the body of the carrier.
Claim 20
Dependent Claim
16 words
A method in accordance with claim 3 wherein the coloration pattern is graduated across the carrier.
Claim 21
Dependent Claim
26 words
A method in accordance with claim 19 wherein the amount of pigment in the coloration pattern varies from the center of the carrier to the periphery.
Claim 22
Dependent Claim
37 words
A method in accordance with claim 1 wherein the differential pressure is applied by creating an enclosed space between the carrier and the construct and evacuating that space to draw the carrier into contact with the construct.
Claim 23
Dependent Claim
49 words
A method in accordance with claim 21 wherein the construct is placed upright on a vacuum plate, a central portion of the carrier is positioned above and in contact with, or in close proximity to, the construct, and a peripheral portion of the carrier is firmly held in place.
Claim 24
Dependent Claim
19 words
A method in accordance with claim 21 wherein additional force is applied by a source external to the carrier.
Claim 25
Dependent Claim
18 words
A method in accordance with claim 23 wherein the external source is a pad pressed against the carrier.
Claim 26
Dependent Claim
23 words
A method in accordance with claim 23 wherein the external source is positive air pressure applied against the reverse side of the carrier.
References Cited (Backward Citations)
US3769055A
Cited
US4481227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-17 | 1994-12-17 | 1995-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-17 | 1998-12-17 | 1999-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-17 | 2002-12-17 | 2003-06-18 | $7700.00 | Window Closed / Lapsed |