US4408659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat storage mass for regenerative heat exchange
Assignee: Apparatebau Rothemuehle Brandt and Kritzler GmbH
•
Filing: 1981-10-13
•
Granted: 1983-10-11
•
Expires: 2001-10-13
Abstract
Abstract A heat storage mass or heat retainer made of at least two different materials, with the heat storage capacity of the entire mass being based predominantly upon the heat storage capacity of a first material, which is embedded in hollow spaces or chambers, or pores, which are uniformly or statistically distributed in a second carrier material.
Inventors
- 👤 Bernd Hermanns
- 👤 Stanislaw Michalak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:42
CPC Classifications
F; F28; F28D; F28D13/00; F28D19/00; F28D19/02; F28D20/00; F28D20/02; F28D20/023; Y; Y02; Y02E; Y02E60/00; Y02E60/14; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/042
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
94 words
A regenerative heat exchanger for cooling hot gas streams and heating cool gas streams with heat extracted from the hot gas streams, the heat exchanger comprising: a fluidized bed through which both the cool and hot gases pass, the fluidized bed including a plurality of individual elements, wherein each element comprises a hollow body having a wall comprising a carrier material having a relatively high thermal conductivity and resistance to destruction by the gases, the wall having a plurality of spaces therein, and a material of high heat storage capacity sealed within the spaces.
Claim 2
Dependent Claim
94 words
A regenerative heat exchanger for cooling hot gas streams and heating cool gas streams with heat extracted from the hot gas streams, the heat exchanger comprising: a fluidized bed through which both the cool and hot gases pass, the fluidized bed including a plurality of individual elements, wherein each element comprises a hollow body having a wall comprising a carrier material having a relatively high thermal conductivity and resistance to destruction by the gases, the wall having a plurality of spaces therein, and a material of high heat storage capacity sealed within the spaces.
Claim 3
Dependent Claim
15 words
The regenerative heat exchanger of claim 1 wherein the individual elements are spherical in shape.
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) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |