Patent US4741940A successfully refreshed from Google Patents.
US4741940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articles and methods for protecting substrates
Assignee: Raychem Corp
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Filing: 1986-05-19
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Granted: 1988-05-03
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Expires: 2006-05-19
Abstract
Abstract This invention provides articles and methods for surface protection which comprises a layer of a gel material having a cone penetration of about 100 to about 350 (10 -1 mm) and an ultimate elongation of at least 100% and a covering layer of a flexible material which is flexible when installed on the surface to be protected and is hardenable or curable so that after installation the covering layer hardens to hold the gel layer in position and protect the gel layer from mechanical and other environmental conditions. This invention is particularly suitable for providing surface protection for underwater structures by applying the gel layer to displace the water from the surface which is underwater and providing a water curable covering layer which, after being applied to the surface, cures underwater to provide the required mechanical protection for the gel layer.
Inventors
- 👤 James P. Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:01
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/70; H02; H02G; H02G15/00; H02G15/08; H02G15/10; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/239; Y10T428/249921; Y10T428/249953; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/133
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
128 words
An article for protecting a substrate comprising: a layer of gel material for contacting the surface of a substrate comprising a gel being cured prior to contacting the substrate and having a cone penetration of about 100 to about 350 (10 -1 mm) and an ultimate elongation of at least about 100%; and a covering layer of flexible material adapted to carry said layer of gel material and enable placement of the gel material on a substrate and adapted to protect said gel material after the gel is in place on the substrate comprising a material which is flexible during installation on the substrate and hardenable after placed on the substrate to thereby provide mechanical protection for the gel material positioned between the covering layer and the substrate.
Claim 2
Dependent Claim
128 words
An article for protecting a substrate comprising: a layer of gel material for contacting the surface of a substrate comprising a gel being cured prior to contacting the substrate and having a cone penetration of about 100 to about 350 (10 -1 mm) and an ultimate elongation of at least about 100%; and a covering layer of flexible material adapted to carry said layer of gel material and enable placement of the gel material on a substrate and adapted to protect said gel material after the gel is in place on the substrate comprising a material which is flexible during installation on the substrate and hardenable after placed on the substrate to thereby provide mechanical protection for the gel material positioned between the covering layer and the substrate.
Claim 3
Dependent Claim
28 words
An article according to claim 1 wherein the gel material has a cone penetration between about 150 and 350 and an ultimate elongation of at least about 200%.
Claim 4
Dependent Claim
17 words
An article according to claim 1 wherein the covering layer is a fabric impregnated with a resin.
Claim 5
Dependent Claim
17 words
An article according to claim 2 wherein the covering layer is a fabric impregnated with a resin.
Claim 6
Dependent Claim
13 words
An article according to claim 3 wherein the covering layer is water curable.
Claim 7
Dependent Claim
13 words
An article according to claim 4 wherein the covering layer is water curable.
Claim 8
Dependent Claim
13 words
An article according to claim 6 wherein the fabric is a fiberglass material.
Claim 9
Dependent Claim
93 words
An assembly comprising: a substrate; a layer of gel material in contact with the surface of the substrate comprising a material having a cone pentration of about 100 to about 350 (10 -1 mm) and an ultimate elongation of at least about 100%; and a layer of protective material over the layer of gel material which is flexible at the time of installation on the substrate and hardens after installation on the substrate to provide mechanical protection for the layer of gel material positioned between the substrate and the layer of protective material.
Claim 10
Dependent Claim
93 words
An assembly comprising: a substrate; a layer of gel material in contact with the surface of the substrate comprising a material having a cone pentration of about 100 to about 350 (10 -1 mm) and an ultimate elongation of at least about 100%; and a layer of protective material over the layer of gel material which is flexible at the time of installation on the substrate and hardens after installation on the substrate to provide mechanical protection for the layer of gel material positioned between the substrate and the layer of protective material.
Claim 11
Dependent Claim
28 words
An assembly according to claim 8 wherein the gel material has a cone penetration between about 150 and 350 and an ultimate elongation of at least about 200%.
Claim 12
Dependent Claim
17 words
An assembly according to claim 8 wherein the covering layer is a fabric impregnated with a resin.
Claim 13
Dependent Claim
17 words
An assembly according to claim 9 wherein the covering layer is a fabric impregnated with a resin.
Claim 14
Dependent Claim
13 words
An assembly according to claim 10 wherein the covering layer is water curable.
Claim 15
Dependent Claim
13 words
An assembly according to claim 11 wherein the covering layer is water curable.
Claim 16
Dependent Claim
13 words
An assembly according to claim 13 wherein the fabric is a fiberglass material.
Claim 17
Independent Claim
87 words
A method of protecting a substrate comprising: placing in contact with the surface of a substrate a gel material having a cone penetration of about 100 to about 350 (10 -1 mm) and being cured prior to being place in contact with the surface of the substrate; and placing over the gel material a covering material which is flexible at the time of installation thereon and cures or hardens after installation thereby providing mechanical protection for the gel material positioned between the substrate and the covering material.
Claim 18
Independent Claim
87 words
A method of protecting a substrate comprising: placing in contact with the surface of a substrate a gel material having a cone penetration of about 100 to about 350 (10 -1 mm) and being cured prior to being place in contact with the surface of the substrate; and placing over the gel material a covering material which is flexible at the time of installation thereon and cures or hardens after installation thereby providing mechanical protection for the gel material positioned between the substrate and the covering material.
Claim 19
Dependent Claim
28 words
A method according to claim 15 wherein the gel material has a cone penetration between about 150 and 350 and an ultimate elongation of at least about 200%.
Claim 20
Dependent Claim
17 words
A method according to claim 15 wherein the covering layer is a fabric impregnated with a resin.
Claim 21
Dependent Claim
17 words
A method according to claim 16 wherein the covering layer is a fabric impregnated with a resin.
Claim 22
Dependent Claim
13 words
A method according to claim 17 wherein the covering layer is water curable.
Claim 23
Dependent Claim
13 words
A method according to claim 18 wherein the covering layer is water curable.
Claim 24
Dependent Claim
13 words
A method according to claim 20 wherein the fabric is a fiberglass material.
Claim 25
Dependent Claim
105 words
A kit-of-parts comprising: a sheet or tape of gel material for contacting the surface of a substrate comprising a gel being cured prior to contacting the substrate and having a cone penetration of about 100 to about 350 (10 -1 mm) and an ultimate elongation of at least about 100%; and a sheet or tape of protective material for covering the gel material after the gel is in place on the substrate comprising a material which is flexible during installation on the substrate and hardenable after placed on the substrate thereby providing mechanical protection for the gel material positioned the protective material and the substrate.
Claim 26
Dependent Claim
105 words
A kit-of-parts comprising: a sheet or tape of gel material for contacting the surface of a substrate comprising a gel being cured prior to contacting the substrate and having a cone penetration of about 100 to about 350 (10 -1 mm) and an ultimate elongation of at least about 100%; and a sheet or tape of protective material for covering the gel material after the gel is in place on the substrate comprising a material which is flexible during installation on the substrate and hardenable after placed on the substrate thereby providing mechanical protection for the gel material positioned the protective material and the substrate.
Claim 27
Dependent Claim
28 words
A kit-of-parts according to claim 22 wherein the gel material has a cone penetration between about 150 and 350 and an ultimate elongation of at least about 200%.
Claim 28
Dependent Claim
17 words
A kit-of-parts according to claim 22 wherein the covering layer is a fabric impregnated with a resin.
Claim 29
Dependent Claim
17 words
A kit-of-parts according to claim 23 wherein the covering layer is a fabric impregnated with a resin.
Claim 30
Dependent Claim
13 words
A kit-of-parts according to claim 24 wherein the covering layer is water curable.
Claim 31
Dependent Claim
13 words
A kit-of-parts according to claim 26 wherein the covering layer is water curable.
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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) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |