Patent US3209813A successfully refreshed from Google Patents.
US3209813A
Expired / Lapsed
US
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Rotary regenerative heat exchangers
Assignee: CA Parsons and Co Ltd
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Filing: 1963-04-24
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Granted: 1965-10-05
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Expires: 1983-04-24
Abstract
No abstract record available.
Inventors
- 👤 Hryniszak Waldemar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:06
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/04; F28D19/047; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/013; Y10S165/016; Y10S165/02; Y10S165/021; Y10S165/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A ROTARY REGENERATIVE HEAT EXCHANGER COMPRISING A STATIONARY HOUSING, A ROTOR MOUNTED FOR ROTATION IN SAID HOUSING, HEAT STORING MATERIAL IN SAID ROTOR, PASSAGES IN SAID HEAD STORING MATERIAL FOR ALLOWING THE PASSAGE OF HEAT EXCHANGING FLUID FROM ONE END FACE OF THE ROTOR TO AN OPPOSITE END FACE THEREOF IN THE DIRECTION OF THE AXIS OF THE ROTOR, CHAMBERS IN CAIS HOUSING, A CHAMBER FOR HOT FLUID ADJACENT EACH END FACE OF THE ROTOR, A CHAMBER FOR COLD FLUID ADJACENT EACH END FACE, SEALING MEANS FOR OPERATING WITH SAID END FACES OF THE ROTOR ALONG A CHORD OR DIAMETER THEREOF AND SEPARATE SEALING MEANS EXTENDING AXIALLY ALONG AND COOPERATING WITH A PERIPHERAL PHASE OF THE ROTOR, EACH OF SID SEALING MEANS COMPRISING TWO
Claim 2
Dependent Claim
124 words
A ROTARY REGENERATIVE HEAT EXCHANGER COMPRISING A STATIONARY HOUSING, A ROTOR MOUNTED FOR ROTATION IN SAID HOUSING, HEAT STORING MATERIAL IN SAID ROTOR, PASSAGES IN SAID HEAD STORING MATERIAL FOR ALLOWING THE PASSAGE OF HEAT EXCHANGING FLUID FROM ONE END FACE OF THE ROTOR TO AN OPPOSITE END FACE THEREOF IN THE DIRECTION OF THE AXIS OF THE ROTOR, CHAMBERS IN CAIS HOUSING, A CHAMBER FOR HOT FLUID ADJACENT EACH END FACE OF THE ROTOR, A CHAMBER FOR COLD FLUID ADJACENT EACH END FACE, SEALING MEANS FOR OPERATING WITH SAID END FACES OF THE ROTOR ALONG A CHORD OR DIAMETER THEREOF AND SEPARATE SEALING MEANS EXTENDING AXIALLY ALONG AND COOPERATING WITH A PERIPHERAL PHASE OF THE ROTOR, EACH OF SID SEALING MEANS COMPRISING TWO
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |