Patent US4097228A successfully refreshed from Google Patents.
US4097228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace cover
Assignee: Babcock and Wilcox Co
•
Filing: 1976-12-20
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Granted: 1978-06-27
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Expires: 1996-12-20
Abstract
Abstract A flexible insulating blanket attached to a metal backing with adjustable panels about the backing is used to cover the opening of a carbon anode baking furnace to bring about sealing contact between the cover and the furnace walls so as to minimize thermal requirements and losses from the furnace.
Inventors
- 👤 Denys Reginald Rosling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:23
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/18; F27D1/1808; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
74 words
A cover for sealing a furnace opening comprising a metal backing, panels disposed about the perimeter and extending transversely of the backing, flexible insulation material lining and overlappingthe backing and panels, and means connected to the panels and backing for adjustably moving the panels and the insulation material associated therewith in the direction of the perimeter of the furnace opening to bring about sealing contact of the insulation with the perimeter of the opening.
Claim 2
Dependent Claim
74 words
A cover for sealing a furnace opening comprising a metal backing, panels disposed about the perimeter and extending transversely of the backing, flexible insulation material lining and overlappingthe backing and panels, and means connected to the panels and backing for adjustably moving the panels and the insulation material associated therewith in the direction of the perimeter of the furnace opening to bring about sealing contact of the insulation with the perimeter of the opening.
Claim 3
Dependent Claim
15 words
A cover as in claim 1 wherein the flexible insulation material is a ceramic fiber.
Claim 4
Dependent Claim
13 words
A cover as in claim 1 wherein the adjustment means are toggle clamps.
Claim 5
Dependent Claim
48 words
A cover as in claim 1 wherein at least one of the panels includes right angle shaped legs and one of the legs of the panel is formed with spaced sections which experience displacement when the panel is moved in the direction of the perimeter of the opening.
Claim 6
Dependent Claim
15 words
A cover as in claim 2 wherein the ceramic fiber material is in blanket form.
Claim 7
Dependent Claim
72 words
A cover for sealing a furnace opening comprising a backing, panels disposed about the perimeter and extending transversely of the backing, flexible insulation material overlapping the backing and panels, and means connected to the panels and backing for adjustably moving the panels and the insulation material associated therewith in the direction of the perimeter of the furnace opening to bring about sealing contact of the insulation with the perimeter of the opening.
Claim 8
Dependent Claim
72 words
A cover for sealing a furnace opening comprising a backing, panels disposed about the perimeter and extending transversely of the backing, flexible insulation material overlapping the backing and panels, and means connected to the panels and backing for adjustably moving the panels and the insulation material associated therewith in the direction of the perimeter of the furnace opening to bring about sealing contact of the insulation with the perimeter of the opening.
Claim 9
Dependent Claim
85 words
In a furnace of the type having at least one carbon anode and a furnace opening, an improved cover which comprises a backing, panels disposed about the perimeter an extending transversely of the backing, flexible insulation material lining the backing and panels, and means connected to the panels and backing for adjustably moving the panels and the insulation material associated therewith in the direction of the perimeter of the furnace opening to bring about sealing contact of the insulation with the perimeter of the opening.
Claim 10
Dependent Claim
85 words
In a furnace of the type having at least one carbon anode and a furnace opening, an improved cover which comprises a backing, panels disposed about the perimeter an extending transversely of the backing, flexible insulation material lining the backing and panels, and means connected to the panels and backing for adjustably moving the panels and the insulation material associated therewith in the direction of the perimeter of the furnace opening to bring about sealing contact of the insulation with the perimeter of the opening.
References Cited (Backward Citations)
US1868824A
Cited
US2316688A
Cited
US2742177A
Cited
US3048382A
Cited
US3084828A
Cited
US3268722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |