Patent US3866017A successfully refreshed from Google Patents.
US3866017A
Expired / Lapsed
US
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Box furnace
Assignee: Sola Basic Industries Inc
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Filing: 1974-03-07
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Granted: 1975-02-11
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Expires: 1994-03-07
Abstract
Abstract A furnace comprising an outer shell in which is positioned a supporting frame and a heating unit molded of a ceramic insulating material having heating elements and mounting bands embedded therein is secured in position by the mounting bands upon the supporting frame.
Inventors
- 👤 William M Keren
- 👤 Peter J Loniello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:08
CPC Classifications
F; F27; F27B; F27B5/00; F27B5/06; F27B5/14; F27D; F27D11/00; F27D11/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
62 words
In an industrial furnace, the combination of an outer shell, a furnace heating unit supporting metal frame within said shell, and a heating unit of a ceramic insulating material having electrical heating elements and mounting metal band means molded in situ therewith and embedded therein, said heating unit being mounted upon said frame and secured in position by said mounting band means.
Claim 2
Dependent Claim
62 words
In an industrial furnace, the combination of an outer shell, a furnace heating unit supporting metal frame within said shell, and a heating unit of a ceramic insulating material having electrical heating elements and mounting metal band means molded in situ therewith and embedded therein, said heating unit being mounted upon said frame and secured in position by said mounting band means.
Claim 3
Dependent Claim
53 words
In an industrial furnace as claimed in claim 1 wherein said mounting band means comprises a first band and circling said heating unit transversely, a pair of hook means attached to said first band with the hook portions thereof projecting below the bottom of the heating unit and connected to said supporting frame.
Claim 4
Dependent Claim
27 words
In an industrial furnace as claimed in claim 2 wherein said supporting frame comprises a pair of parallel spaced rods, said hook portions connecting to said rods.
Claim 5
Dependent Claim
31 words
In an industrial furnace as claimed in claim 1 wherein said mounting band means are embedded within the wall of said heating unit about one-half inch below the outer surface thereof.
Claim 6
Dependent Claim
19 words
In an industrial furnace as claimed in claim 2 wherein said first band comprises a strip of expanded metal.
References Cited (Backward Citations)
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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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |