Patent US4756766A successfully refreshed from Google Patents.
US4756766A
Expired / Lapsed
US
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Method of cleaning and conditioning surfaces
Assignee: HERTRON INTERNATIONAL Inc CHARLOTTE NC A CORP OF NC
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Filing: 1987-05-07
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Granted: 1988-07-12
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Expires: 2007-05-07
Abstract
Abstract A process for cleaning and conditioning marble and similar substances whereby a first mixture formed from zinc sulfate solution, an abrasive, and a thickener is used to mechanically and chemically clean and prepare for the reception of a second aqueous solution formed of fluosilicates of the group consisting of the alkaline earth metals and zinc, and a monocarboxylic aliphatic organic acid, such as acetic. The first mixture is applied with buffing means, completely flushed with water, and removed. The second solution is applied and partially removed with buffing means. As a result of these steps, the surface of the treated substance is given a brilliant glass-like finish.
Inventors
- 👤 John H. Thrower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:46
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; B; B24; B24B; B24B1/00; C04B41/45; C04B41/50; C04B41/5018; C04B41/52; C04B41/53; C04B41/5315
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
103 words
A coating, cleaning, and conditioning process for marble comprising the steps of: applying a first mixture consisting essentially of zinc sulfate, an abrasive, a thickner, and a wetting agent to the surface to be treated; removing the mixture with buffing means and water; applying a second mixture consisting essentially of fluorosilicates of the group consisting of the alkaline earth metals and zinc, and monocarboxylic aliphatic organic acid and a wetting agent to the surface to be treated; and partially removing the second mixture with buffing means to form a insoluable film of calcium fluorosilicate that restores the depth of gloss of the marble.
Claim 2
Dependent Claim
103 words
A coating, cleaning, and conditioning process for marble comprising the steps of: applying a first mixture consisting essentially of zinc sulfate, an abrasive, a thickner, and a wetting agent to the surface to be treated; removing the mixture with buffing means and water; applying a second mixture consisting essentially of fluorosilicates of the group consisting of the alkaline earth metals and zinc, and monocarboxylic aliphatic organic acid and a wetting agent to the surface to be treated; and partially removing the second mixture with buffing means to form a insoluable film of calcium fluorosilicate that restores the depth of gloss of the marble.
Claim 3
Dependent Claim
30 words
The process as claimed in claim 1 wherein the first mixture buffing means includes a buffing machine and a nylon pad for contacting the first mixture-coated surface to be treated.
Claim 4
Dependent Claim
35 words
The process as claimed in claim 1 wherein the second mixture buffing means includes a buffer capable of exerting from 0.5 to 1 pound per square inch against the second mixture-coated surface to be treated.
Claim 5
Dependent Claim
42 words
The process as claimed in claim 1 wherein the second mixture is thinly applied over small sections of the surface to be treated and, while still damp, partially removed by buffing means from each small section before being applied to another section.
Claim 6
Dependent Claim
30 words
The process as claimed in claim 1 wherein the surface to be treated is cleaned and dried after the first mixture is removed and before the second mixture is applied.
Claim 7
Dependent Claim
32 words
The process as claimed in claim 1 wherein the first mixture contains from 0.5 to 1.7 pounds of zinc sulfate and from 1 to 3 pounds of abrasive per gallon of water.
Claim 8
Dependent Claim
33 words
The process as claimed in claim 1 wherein the second mixture contains from 0.4 to 0.8 pound of magnesium fluorosilicate and from 0.1 to 0.2 pound of zinc fluorosilicate per gallon of water.
Claim 9
Dependent Claim
24 words
The process as claimed in claim 1 wherein the second mixture contains from 0.5 to 1.0 pound of magnesium fluorosilicate per gallon of water.
Claim 10
Dependent Claim
24 words
The process as claimed in claim 1 wherein the second mixture contains from 0.6 to 1.0 pound of zinc fluorosilicate per gallon of water.
Claim 11
Dependent Claim
23 words
The process as claimed in claim 1 wherein the abrasive in the first mixture is from 500 to 800 grit silicon carbide abrasive.
Claim 12
Dependent Claim
13 words
The process as claimed in claim 1 wherein the thickener is xanthan gum.
Claim 13
Dependent Claim
35 words
The process as claimed in claim 2 wherein the second mixture buffing means includes a buffer capable of exerting from 0.5 to 1.0 pound per square inch against the second mixture-coated surface to be treated.
Claim 14
Dependent Claim
42 words
The process as claimed in claim 12 wherein the second mixture is thinly applied over small sections of the surface to be treated and allowed to be chemically reacted and partially removed from each small section before being applied to another section.
Claim 15
Dependent Claim
30 words
The process as claimed in claim 13 wherein the surface to be treated is cleaned and dried after the first mixture is removed and before the second mixture is applied.
Claim 16
Dependent Claim
32 words
The process as claimed in claim 14 wherein the first mixture contains from 0.5 to 1.7 pounds of zinc sulfate and from 1.0 to 3.0 pounds of abrasive per gallon of water.
Claim 17
Dependent Claim
33 words
The process as claimed in claim 13 wherein the second mixture contains from 0.4 to 0.8 pound of magnesium fluorosilicate and from 0.l to 0.2 pound of zinc fluorosilicate per gallon of water.
Claim 18
Dependent Claim
24 words
The process as claimed in claim 13 wherein the second mixture contains from 0.5 to 1.0 pound of magnesium fluorosilicate per gallon of water.
Claim 19
Dependent Claim
24 words
The process as claimed in claim 13 wherein the second mixture contains from 0.5 to 1.0 pound of zinc fluorosilicate per gallon of water.
Claim 20
Dependent Claim
20 words
The process as claimed in claim 11 wherein the abrasive in the first mixture is from 500 to 800 grit.
Claim 21
Dependent Claim
17 words
The process as claimed in claim 19 wherein the thickener is a discretionary amount of xanthan gum.
Claim 22
Dependent Claim
13 words
The process as claimed in claim 1 wherein the wetting agent is non-ionic.
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) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |