US2671644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat regenerator containing metal packing material coated with a lubricant
Assignee: Union Carbide Corp
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Filing: 1949-11-30
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Granted: 1954-03-09
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Expires: 1969-11-30
Abstract
No abstract record available.
Inventors
- 👤 George H Zenner
- 👤 Russell W Houvener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:03
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/04; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G1/053; F02G1/057; F25; F25J; F25J5/00; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/14; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/905; Y10S62/906; Y10S62/909
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A LOW-TEMPERATURE HEAT REGENERATOR FOR EFFECTING HEAT EXCHANGE BETWEEN A COMPRESSED GAS MIXTURE TO BE COOLED AND A COLD SEPARATION PRODUCT FLOWED ALTERNATELY THERETHROUGH, SAID REGENERATOR CONTAINING PACKING MATERIAL COMPRISING METAL PELLETS OF 3/16 INCH TO 5/8 INCH DIAMETER, SAID PELLETS BEING OF A HEAT STORING MATERIAL HAVING A TENDENCY TO ABRADE AND DUST WHEN SUBJECTED TO REPEATED RAPID CHANGES OF FLUID FLOW THROUGH THE REGENERATOR. SAID PELLETS BEING EACH COATED WITH A LUBRICANT SELECTED FROM THE GROUP CONSISTING OF GRAPHITE AND MOLYBDENUM DISULPHIDE.
References Cited (Backward Citations)
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US2102214A
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US2157155A
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US2280886A
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US2387872A
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US2461011A
Cited
US2531725A
Cited
US2600078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |