US4189327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-cordierite and method of making the same
Assignee: Resco Products Inc
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Filing: 1978-04-17
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Granted: 1980-02-19
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Expires: 1998-04-17
Abstract
Abstract A semi-cordierite grog composition is made by forming a mixture comprising about 8 to about 20 weight percent olivine and about 80 to about 92 weight percent of a natural mineral selected from the group consisting of kaolin, bentonite, aluminum silicates, diaspore, quartz and mixtures thereof, wherein the kaolin comprises at least 75 weight percent of the natural mineral, and sintering the mixture at a temperature of about 1330 DEG C. to about 1390 DEG C.
Inventors
- 👤 George L. Winchester, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:33
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/6303; C04B35/6306; C04B33/00; C04B33/02; C04B33/13; C04B35/01; C04B35/16; C04B35/18; C04B35/195; C04B35/66; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3205; C04B2235/34; C04B2235/3427; C04B2235/3463; C04B2235/3481
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
81 words
A method of making a semi-cordierite grog composition comprising forming a mixture comprising about 8 to about 20 weight percent olivine and about 80 to about 92 weight percent of a natural mineral selected from the group consisting of kaolin, fireclay, bauxite, bentonite, pyrophyllite, sillimanite, kyanite, andalusite, diaspore, quartz and mixtures thereof, wherein the kaolin comprises at least about 75 weight percent of the natural mineral, and sintering the mixture at a temperature of about 1330° C. to about 1390° C.
Claim 2
Independent Claim
81 words
A method of making a semi-cordierite grog composition comprising forming a mixture comprising about 8 to about 20 weight percent olivine and about 80 to about 92 weight percent of a natural mineral selected from the group consisting of kaolin, fireclay, bauxite, bentonite, pyrophyllite, sillimanite, kyanite, andalusite, diaspore, quartz and mixtures thereof, wherein the kaolin comprises at least about 75 weight percent of the natural mineral, and sintering the mixture at a temperature of about 1330° C. to about 1390° C.
Claim 3
Dependent Claim
12 words
A method according to claim 1 wherein the natural mineral is kaolin.
Claim 4
Dependent Claim
70 words
A method according to claim 1 wherein the natural mineral comprises about 75 to about 99 weight percent kaolin and about 1 to about 25 weight percent of a compound selected from the group consisting of a calcined mineral selected from the group consisting of clay, bauxite, diaspore, kyanite, and mullite; and a raw mineral selected from the group consisting of kyanite, andalusite, sillimanite, pyrophyllite and quartz; and mixtures thereof.
Claim 5
Dependent Claim
28 words
A method according to claim 1 wherein the natural mineral comprises about 97 to about 99 weight percent kaolin and about 1 to about 3 weight percent bentonite.
Claim 6
Dependent Claim
18 words
A method according to claim 1 further comprising adding an effective amount of a dispersant into the mixture.
Claim 7
Dependent Claim
12 words
A method according to claim 5 wherein the dispersant is sodium lignosulfonate.
Claim 8
Dependent Claim
14 words
A method according to claim 1 further comprising adding a binder into the mixture.
Claim 9
Dependent Claim
23 words
A method according to claim 7 wherein the binder is selected from the group consisting of sodium lignosulfonate, corn starch and cereal binders.
Claim 10
Dependent Claim
21 words
A method according to claim 1 wherein the olivine has a particle size of about -70 mesh to about -200 mesh.
Claim 11
Dependent Claim
14 words
A method according to claim 1 further comprising drying the mixture before sintering it.
Claim 12
Dependent Claim
24 words
A method according to claim 1 wherein the mixture comprises about 12 weight percent olivine and about 88 weight percent of the natural mineral.
Claim 13
Dependent Claim
12 words
A method according to claim 11 wherein the natural mineral is kaolin.
Claim 14
Dependent Claim
72 words
A method according to claim 11 wherein the natural mineral is comprised of about 75 to about 99 weight percent kaolin and about 1 to about 25 weight percent of a mineral selected from the group consisting of a calcined mineral selected from the group consisting of clay, bauxite, diaspore, kyanite, and mullite; and a raw mineral selected from the group consisting of kyanite, andalusite, sillimanite, pyrophyllite, and quartz; and mixtures thereof.
Claim 15
Dependent Claim
24 words
A method according to claim 1 wherein the mixture comprises about 14 weight percent olivine and about 86 weight percent of the natural mineral.
Claim 16
Dependent Claim
12 words
A method according to claim 14 wherein the natural mineral is kaolin.
Claim 17
Dependent Claim
73 words
A method according to claim 14 wherein the natural mineral is comprised of about 75 to about 99 weight percent kaolin and about 1 to about 25 weight percent of a mineral selected from the group consisting of a calcined mineral selected from the group consisting of clay, bauxite, diaspore, kyanite, and mullite; and a raw mineral selected from the group consisting of kyanite, and alusite, sillimanite, pyrophyllite, and quartz; and mixtures thereof.
Claim 18
Dependent Claim
11 words
A grog composition made according to the method of claim 1.
Claim 19
Dependent Claim
11 words
A grog composition made according to the method of claim 2.
Claim 20
Dependent Claim
11 words
A grog composition made according to the method of claim 3.
Claim 21
Dependent Claim
11 words
A grog composition made according to the method of claim 4.
Claim 22
Dependent Claim
11 words
A grog composition made according to the method of claim 5.
Claim 23
Dependent Claim
11 words
A grog composition made according to the method of claim 6.
Claim 24
Dependent Claim
11 words
A grog composition made according to the method of claim 7.
Claim 25
Dependent Claim
11 words
A grog composition made according to the method of claim 8.
Claim 26
Dependent Claim
11 words
A grog composition made according to the method of claim 9.
Claim 27
Dependent Claim
11 words
A grog composition made according to the method of claim 10.
Claim 28
Dependent Claim
11 words
A grog composition made according to the method of claim 11.
Claim 29
Dependent Claim
11 words
A grog composition made according to the method of claim 12.
Claim 30
Dependent Claim
11 words
A grog composition made according to the method of claim 13.
Claim 31
Dependent Claim
11 words
A grog composition made according to the method of claim 14.
Claim 32
Dependent Claim
11 words
A grog composition made according to the method of claim 15.
Claim 33
Dependent Claim
11 words
A grog composition made according to the method of claim 16.
References Cited (Backward Citations)
US3885977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-18 | 1983-08-20 | 1984-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-18 | 1987-08-20 | 1988-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-18 | 1991-08-20 | 1992-02-19 | $7700.00 | Window Closed / Lapsed |