Patent US2092257A successfully refreshed from Google Patents.
US4143704A
Expired / Lapsed
US
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Regenerative heater
Assignee: Individual
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Filing: 1977-10-25
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Granted: 1979-03-13
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Expires: 1997-10-25
Abstract
Abstract The regenerative heater comprises the brickwork of the walls and checker of refractory materials with different coefficients of linear expansion enclosed within a jacket also included are superimposed horizontal sections corresponding to the distribution of the internal operating temperatures. Each of the horizontal sections consists of a homogeneous refractory material. Arranged between the horizontal sections are transition sections, each consisting of the refractory materials of the contiguous sections, the materials being uniformly distributed in each course and superimposed so that the content of the material in one of the contiguous section gradually diminishes from course to course toward the other section.
Inventors
- 👤 Gennady P. Kandakov
- 👤 Viktor Y. Miller
- 👤 Lev A. Sorokin
- 👤 Alexandr E. Sukhorukov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:38
CPC Classifications
F; F28; F28D; F28D17/00; F28D17/02; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/03; Y10S165/031
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
A regenerative heater, comprising a wall and checker brickwork of refractory materials having different coefficients of linear expansion, said wall and checker brickwork being encased within a jacket and comprising superimposed horizontal sections corresponding to the distribution of internal operating temperatures of the regenerative heater and transition sections to diminish the relative displacement of the horizontal sections caused by heat expansion; each of said horizontal sections being made of a homogeneous refractory material; each of said transition sections being disposed between said horizontal sections and formed by at least one course of refractory materials of horizontal sections contiguous to said transition section, the refractory material of one section being uniformly distributed within that of the other section.
Claim 2
Dependent Claim
117 words
A regenerative heater, comprising a wall and checker brickwork of refractory materials having different coefficients of linear expansion, said wall and checker brickwork being encased within a jacket and comprising superimposed horizontal sections corresponding to the distribution of internal operating temperatures of the regenerative heater and transition sections to diminish the relative displacement of the horizontal sections caused by heat expansion; each of said horizontal sections being made of a homogeneous refractory material; each of said transition sections being disposed between said horizontal sections and formed by at least one course of refractory materials of horizontal sections contiguous to said transition section, the refractory material of one section being uniformly distributed within that of the other section.
Claim 3
Dependent Claim
59 words
A regenerative heater according to claim 1, wherein the transition section is formed by several courses made of the refractory materials of the contiguous sections, the materials being uniformly distributed in each course and superimposed so that the content of the material in one of the contiguous horizontal sections gradually diminishes from course to course toward the other section.
Claim 4
Dependent Claim
26 words
A regenerative heater according to claim 1, wherein the height of the transition section ranges from 0.15 to 5% of the total height of the heater.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |