Patent US4177036A successfully refreshed from Google Patents.
US4177036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature industrial furnace
Assignee: Babcock and Wilcox Co
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Filing: 1977-09-06
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Granted: 1979-12-04
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Expires: 1997-09-06
Abstract
Abstract A high temperature industrial furnace comprising a clean interior face of a metal furnace casing, a corrosion inhibitor/adhesive, and a ceramic fiber insulation module attached to the casing with the adhesive to provide an elastic or flexible bond between the casing and the insulation material is disclosed. The corrosion inhibitor/adhesive may be applied over a relatively large surface area of the casing to provide a vapor impervious membrane. A silicone compound is a preferred corrosion inhibitor/adhesive material.
Inventors
- 👤 Robert A. Sauder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:11
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/14; F27D1/144; F27D1/0003; F27D1/0006; F27D1/0009
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
69 words
A high temperature industrial furnace comprising: a metal chamber wall having an inside surface and an outside surface; an insulation module positioned over said inside surface of said wall; a flexible adhesive intermediate said inside surface of said wall and said module, said flexible adhesive being operable to support said module over said wall and flexibly resist cracking during thermal movement of said wall during operation of said furnace.
Claim 2
Dependent Claim
69 words
A high temperature industrial furnace comprising: a metal chamber wall having an inside surface and an outside surface; an insulation module positioned over said inside surface of said wall; a flexible adhesive intermediate said inside surface of said wall and said module, said flexible adhesive being operable to support said module over said wall and flexibly resist cracking during thermal movement of said wall during operation of said furnace.
Claim 3
Dependent Claim
11 words
The furnace of claim 1 wherein said module comprises ceramic fibers.
Claim 4
Dependent Claim
47 words
The furnace of claim 2 wherein said module comprises: a plurality of side-by-side strips of material composed of insulation fibers, the fibers having no particular orientation but forming a plurality of planes substantially parallel to each other and generally perpendicular to said inside surface of said wall.
Claim 5
Dependent Claim
17 words
The furnace of claim 2 wherein said module comprises ceramic fibers vacuum formed into a predetermined shape.
Claim 6
Dependent Claim
20 words
The furnace of claim 1 and further comprising a layer of temporary cement on a hot face of said module.
Claim 7
Dependent Claim
12 words
The furnace of claim 1 wherein said adhesive comprises a silicone compound.
Claim 8
Dependent Claim
31 words
The furnace of claim 1 wherein said flexible adhesive completely covers an area of said inside surface of said wall corresponding to an area of a cold face of said module.
Claim 9
Dependent Claim
27 words
The furnace of claim 7 wherein said flexible adhesive is operable as a barrier to inhibit a formation of corrosion on said inside surface of said wall.
Claim 10
Dependent Claim
15 words
The furnace of claim 1 and further comprising a fabric embedded in said flexible adhesive.
Claim 11
Dependent Claim
13 words
The furnace of claim 9 wherein said fabric is comprised of glass fibers.
Claim 12
Dependent Claim
57 words
A high temperature industrial furnace comprising: a chamber wall having an inside surface and an outside surface; an insulation module positioned over said inside surface of said wall; a flexible silicone adhesive compound intermediate said inside surface of said wall and said module, said adhesive compound being operable to support said module during operation of said surface.
Claim 13
Dependent Claim
57 words
A high temperature industrial furnace comprising: a chamber wall having an inside surface and an outside surface; an insulation module positioned over said inside surface of said wall; a flexible silicone adhesive compound intermediate said inside surface of said wall and said module, said adhesive compound being operable to support said module during operation of said surface.
Claim 14
Dependent Claim
11 words
The furnace of claim 11 wherein said module comprises ceramic fibers.
Claim 15
Dependent Claim
47 words
The furnace of claim 12 wherein said module comprises: a plurality of side-by-side strips of material composed of insulation fibers, the fibers having no particular orientation but forming a plurality of planes substantially parallel to each other and generally perpendicular to said inside surface of said wall.
Claim 16
Dependent Claim
17 words
The furnace of claim 12 wherein said module comprises ceramic fibers vacuum formed into a predetermined shape.
Claim 17
Dependent Claim
20 words
The furnace of claim 11 and further comprising a layer of temporary cement on a hot face of said module.
Claim 18
Dependent Claim
13 words
The furnace of claim 11 wherein said chamber wall is comprised of metal.
Claim 19
Dependent Claim
31 words
The furnace of claim 11 wherein said flexible adhesive completely covers an area of said inside surface of said wall corresponding to an area of a cold face of said module.
Claim 20
Dependent Claim
27 words
The furnace of claim 17 wherein said flexible adhesive is operable as a barrier to inhibit a formation of corrosion on said inside surface of said wall.
Claim 21
Dependent Claim
15 words
The furnace of claim 11 and further comprising a fabric embedded in said flexible adhesive.
Claim 22
Dependent Claim
13 words
The furnace of claim 19 wherein said fabric is comprised of glass fibers.
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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) | 1982-12-03 | 1983-06-04 | 1983-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-03 | 1987-06-04 | 1987-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-03 | 1991-06-04 | 1991-12-04 | $7700.00 | Window Closed / Lapsed |