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US4155787A
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US
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Method for the application of cellular glass blocks to spherical vessels
Assignee: Environmental Control Specialists Inc
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Filing: 1977-12-05
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Granted: 1979-05-22
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Expires: 1997-12-05
Abstract
Abstract This invention relates to a method for applying preformed cellular glass insulation blocks to the exterior surface of a spherical metallic storage vessel by the steps of:
Inventors
- 👤 Eddie L. DeSadier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:14
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/001; F17C2201/00; F17C2201/01; F17C2201/0128; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0345; F17C2203/035; F17C2203/0358; F17C2203/06; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0643; F17C2203/0646; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/033; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2260/00; F17C2260/03; F17C2260/031; F17C2260/033; Y; Y10; Y10S; Y10S220/00; Y10S220/901; Y10T; Y10T428/00; Y10T428/19; Y10T428/192; Y10T428/195; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249985; Y10T428/249987; Y10T428/24999
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
180 words
A method for the application of preformed cellular glass insulation blocks to the exterior surface of a spherical metallic storage vessel comprising the steps of: (a) cleaning the exterior surface of the vessel; (b) maintaining the vessel at a temperature of 80°-100° F.; (c) (1) beveling the side walls of a preformed cellular glass insulation block, (2) dishing the shorter inner surface of the preformed block to correspond to the contour of the spherical vessel to which the block is to be adhered, (3) applying uncatalyzed urethane-modified asphalt adhesive stored at 35°-50° F. just prior to use to the thus dished inner surface and beveled edges of the cellular glass block to completely fill the dished surface, (4) spraying the thus-applied urethane-modified asphalt adhesive with a curing agent, and (5) pressing the block against the surface of the vessel whereby adhesive oozes from between the block and the surface of the vessel, and (d) repeating steps of (c) with successive blocks, each of which is flat-butted firmly against adjacent previously-applied blocks, until the entire surface of the vessel is covered.
Claim 2
Independent Claim
180 words
A method for the application of preformed cellular glass insulation blocks to the exterior surface of a spherical metallic storage vessel comprising the steps of: (a) cleaning the exterior surface of the vessel; (b) maintaining the vessel at a temperature of 80°-100° F.; (c) (1) beveling the side walls of a preformed cellular glass insulation block, (2) dishing the shorter inner surface of the preformed block to correspond to the contour of the spherical vessel to which the block is to be adhered, (3) applying uncatalyzed urethane-modified asphalt adhesive stored at 35°-50° F. just prior to use to the thus dished inner surface and beveled edges of the cellular glass block to completely fill the dished surface, (4) spraying the thus-applied urethane-modified asphalt adhesive with a curing agent, and (5) pressing the block against the surface of the vessel whereby adhesive oozes from between the block and the surface of the vessel, and (d) repeating steps of (c) with successive blocks, each of which is flat-butted firmly against adjacent previously-applied blocks, until the entire surface of the vessel is covered.
Claim 3
Dependent Claim
21 words
The method of claim 1, wherein the vessel is filled with about half its volume of water, maintained at 80°-100° F.
Claim 4
Dependent Claim
19 words
The method of claim 1, wherein the exterior surface of the vessel is primed with an inorganic zinc primer.
Claim 5
Dependent Claim
18 words
The method of claim 1, wherein the curing agent for the urethane-modified asphalt adhesive is a dialkyltin dialkanoate.
Claim 6
Dependent Claim
13 words
The method of claim 2, wherein the water is maintained at 85°-95° F.
Claim 7
Dependent Claim
47 words
The method of claim 1, wherein the vessel is filled with about half its volume of water, maintained at 85°-95° F.; the exterior surface of the vessel is primed with an inorganic zinc primer; and the curing agent for the urethane-modified asphalt adhesive is a dialkyltin dialkanoate.
Claim 8
Dependent Claim
12 words
The method of claim 6, wherein the dialkyltin dialkanoate is dibutyltin dilaurate.
References Cited (Backward Citations)
US3372083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |