US5674428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-icing method
Assignee: Kizer Industries Inc
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Filing: 1995-06-07
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Granted: 1997-10-07
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Expires: 2015-06-07
Abstract
Abstract A method of protecting structures and articles from environmental exposure uses a semi-permanent or temporary in situ formed film or tarp to cover the protected articles. The film is environmentally safe and biodegradable. The film also may function as a release film to protect surfaces, such as aircraft wings and refrigeration surfaces, from ice accumulation and may act as a confining barrier to control particulate materials during transportation.
Inventors
- 👤 James Arnold Lott
- 👤 David Vern Kizer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:26
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
193 words
A method of treating a surface to enable removal of ice accumulation comprising applying a gel film of an antifreeze composition to the surface, the composition being comprised of: part A comprised of a water containing solution of an alginic acid composition containing acid functional groups, the alginic acid composition being selected from the group consisting of sodium, potassium and ammonium salts of alginic acid, and a separate part B comprised of a water containing solution of a polyvalent cation salt selected from the group consisting of soluble calcium, aluminum and iron salts, the alginic acid composition being present in part A in an amount between about 0.1 to 20% by weight, and the polyvalent cation salt being present in part B in an amount between about 0.001 and 30% by weight, combining part A and part B to form the gel film on the surface, the gel film being releasable from the surface, part A and part B being effective to form the releasable gel film on the surface preventing ice from adhering to the surface and permitting ready removal of ice from the surface, and exposing the surface to ice accumulation.
Claim 2
Independent Claim
193 words
A method of treating a surface to enable removal of ice accumulation comprising applying a gel film of an antifreeze composition to the surface, the composition being comprised of: part A comprised of a water containing solution of an alginic acid composition containing acid functional groups, the alginic acid composition being selected from the group consisting of sodium, potassium and ammonium salts of alginic acid, and a separate part B comprised of a water containing solution of a polyvalent cation salt selected from the group consisting of soluble calcium, aluminum and iron salts, the alginic acid composition being present in part A in an amount between about 0.1 to 20% by weight, and the polyvalent cation salt being present in part B in an amount between about 0.001 and 30% by weight, combining part A and part B to form the gel film on the surface, the gel film being releasable from the surface, part A and part B being effective to form the releasable gel film on the surface preventing ice from adhering to the surface and permitting ready removal of ice from the surface, and exposing the surface to ice accumulation.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein part A contains a gelatinous material.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein the protected surface is an aircraft surface.
Claim 5
Dependent Claim
58 words
The method of claim 1 wherein the antifreeze composition is applied by spraying part A and part B with pressurized spray units having a flow rate of between about 0.2 gallons per minute and 0.8 gallons per minute and forming a gel layer on the surface, the gel layer being between about 0.001 and 0.250 inches in thickness.
Claim 6
Dependent Claim
14 words
The method of claim 1 wherein part B is applied prior to part A.
Claim 7
Dependent Claim
13 words
The method of claim 1 wherein part A is applied as a foam.
Claim 8
Independent Claim
187 words
A method of protecting an aircraft surface from ice accumulation comprising applying an antifreeze composition to the aircraft surface, the composition comprising: part A comprised of a water containing solution of an alginic acid composition containing acid functional groups, the alginic acid composition being selected from the group consisting of sodium, potassium and ammonium salts of alginic acid, and a separate part B comprised of a water containing solution of a polyvalent cation salt selected from the group consisting of soluble calcium, aluminum and iron salts, the alginic acid composition being present in part A in an amount between about 0.1 to 20% by weight, and the polyvalent cation salt being present in part B in an amount between about 0.001 and 30% by weight, combining part A and part B to form the gel film on the surface, the gel film being releasable from the surface, part A and part B being effective to form a releasable gel film on the aircraft surface preventing ice from adhering to the surface and permitting ready removal of ice from the surface and exposing the surface to ice accumulation.
Claim 9
Independent Claim
187 words
A method of protecting an aircraft surface from ice accumulation comprising applying an antifreeze composition to the aircraft surface, the composition comprising: part A comprised of a water containing solution of an alginic acid composition containing acid functional groups, the alginic acid composition being selected from the group consisting of sodium, potassium and ammonium salts of alginic acid, and a separate part B comprised of a water containing solution of a polyvalent cation salt selected from the group consisting of soluble calcium, aluminum and iron salts, the alginic acid composition being present in part A in an amount between about 0.1 to 20% by weight, and the polyvalent cation salt being present in part B in an amount between about 0.001 and 30% by weight, combining part A and part B to form the gel film on the surface, the gel film being releasable from the surface, part A and part B being effective to form a releasable gel film on the aircraft surface preventing ice from adhering to the surface and permitting ready removal of ice from the surface and exposing the surface to ice accumulation.
Claim 10
Dependent Claim
12 words
The method of claim 7 wherein part A contains a gelatinous material.
Claim 11
Dependent Claim
57 words
The method of claim 7 wherein the antifreeze composition is applied by spraying part A and part B with pressurized spray units having-a flow rate of between about 0.2 gallons per minute and 0.8 gallons per minute and forming a gel layer on the surface, the gel layer being between about 0.001 and 0.250 inches in thickness.
Claim 12
Dependent Claim
14 words
The method of claim 7 wherein part B is applied prior to part A.
Claim 13
Dependent Claim
13 words
The method of claim 1 wherein part A is applied as a foam.
Claim 14
Independent Claim
206 words
A method of protecting an aircraft surface from ice accumulation comprising applying an antifreeze composition to the aircraft surface, the method comprising: first spraying a part B component of a water containing solution of a polyvalent cation salt selected from the group consisting of soluble calcium, aluminum and iron salts, to the aircraft surface, then spraying a part A component of a water containing solution of an alginic acid composition containing acid functional groups, the alginic acid composition being selected from the group consisting of sodium, potassium and ammonium salts of alginic acid, to the aircraft surface, the part A component being sprayed as a foam, the alginic acid composition being present in part A in an amount between about 0.1 to 20% by weight, and the polyvalent cation salt being present in part B in an amount between about 0.001 and 30% by weight, combining part A and part B to form the gel film on the surface, the gel film being releasable from the surface, part A and part B being effective to form a releasable film on the aircraft surface preventing ice from adhering to the surface and permitting ready removal of ice from the surface and exposing the surface to ice accumulation.
Claim 15
Independent Claim
206 words
A method of protecting an aircraft surface from ice accumulation comprising applying an antifreeze composition to the aircraft surface, the method comprising: first spraying a part B component of a water containing solution of a polyvalent cation salt selected from the group consisting of soluble calcium, aluminum and iron salts, to the aircraft surface, then spraying a part A component of a water containing solution of an alginic acid composition containing acid functional groups, the alginic acid composition being selected from the group consisting of sodium, potassium and ammonium salts of alginic acid, to the aircraft surface, the part A component being sprayed as a foam, the alginic acid composition being present in part A in an amount between about 0.1 to 20% by weight, and the polyvalent cation salt being present in part B in an amount between about 0.001 and 30% by weight, combining part A and part B to form the gel film on the surface, the gel film being releasable from the surface, part A and part B being effective to form a releasable film on the aircraft surface preventing ice from adhering to the surface and permitting ready removal of ice from the surface and exposing the surface to ice accumulation.
Claim 16
Dependent Claim
12 words
The method of claim 12 wherein part A contains a gelatinous material.
Claim 17
Dependent Claim
17 words
The method of claim 12 wherein part A is sprayed through a screen to create the foam.
Claim 18
Dependent Claim
58 words
The method of claim 12 wherein the antifreeze composition is applied by spraying part A and part B with pressurized spray units having a flow rate of between about 0.2 gallons per minute and 0.8 gallons per minute and forming a gel layer on the surface, the gel layer being between about 0.001 and 0.250 inches in thickness.
Claim 19
Dependent Claim
19 words
The method of claim 12 wherein the foam is sprayed to a thickness between about 0.5 to 4 inches.
Claim 20
Dependent Claim
20 words
The method of claim 16 wherein the foam is sprayed to a thickness of between about 1 to 2 inches.
Claim 21
Independent Claim
211 words
A method of protecting a surface from ice accumulation comprising applying an antifreeze composition to the surface, the composition being comprised of: part A comprised of a water containing solution of an alginic acid composition containing acid functional groups, the alginic acid composition being selected from the group consisting of sodium, potassium and ammonium salts of alginic acid, and a separate part B comprised of a water containing solution of a polyvalent cation salt selected from the group consisting of soluble calcium, aluminum and iron salts, the alginic acid composition being present in part A in an amount between about 0.1 to 20 % by weight, and the polyvalent cation salt being present in part B in an amount between about 0,001 and 30% by weight, combining part A and B to form the gel film on the surface, the gel film being releasable from the surface, part A and part B being effective to form a releasable gel film on the surface preventing ice from adhering to the surface and permitting ready removal of ice from the surface, at least one of part A and part B containing a corrosion inhibitor selected from the group consisting of calcium carbonate, magnesium carbonate and dolomite and exposing the surface to ice accumulation.
Claim 22
Independent Claim
211 words
A method of protecting a surface from ice accumulation comprising applying an antifreeze composition to the surface, the composition being comprised of: part A comprised of a water containing solution of an alginic acid composition containing acid functional groups, the alginic acid composition being selected from the group consisting of sodium, potassium and ammonium salts of alginic acid, and a separate part B comprised of a water containing solution of a polyvalent cation salt selected from the group consisting of soluble calcium, aluminum and iron salts, the alginic acid composition being present in part A in an amount between about 0.1 to 20 % by weight, and the polyvalent cation salt being present in part B in an amount between about 0,001 and 30% by weight, combining part A and B to form the gel film on the surface, the gel film being releasable from the surface, part A and part B being effective to form a releasable gel film on the surface preventing ice from adhering to the surface and permitting ready removal of ice from the surface, at least one of part A and part B containing a corrosion inhibitor selected from the group consisting of calcium carbonate, magnesium carbonate and dolomite and exposing the surface to ice accumulation.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-10-06 | 2001-04-07 | 2001-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-06 | 2005-04-07 | 2005-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-06 | 2009-04-07 | 2009-10-07 | $7700.00 | Window Closed / Lapsed |