Patent US3318375A successfully refreshed from Google Patents.
US3318375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Block-type heat exchanger
Assignee: Siemens Plania Werke AG
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Filing: 1964-09-04
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Granted: 1967-05-09
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Expires: 1984-09-04
Abstract
No abstract record available.
Inventors
- 👤 Linder Johann
- 👤 Wertingen Kreis
- 👤 Schmidt Klaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:25
CPC Classifications
F; F28; F28F; F28F7/00; F28F7/02; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/395; Y10S165/396
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A DEVICE FOR HEAT EXCHANGE BETWEEN TWO MEDIA, COMPRISING A BLOCK FORMED OF A SINGLE PIECE OF MATERIAL AND HAVING TWO GROUPS OF CHANNELS FOR SAID RESPECTIVE MEDIA, BOTH CHANNEL GROUPS EXTENDING IN THE SAME LONGITUDINAL DIRECTION, THE CHANNELS OF ONE GROUP HAVING A ROUND CROSS SECTION SURROUNDED BY SAID MATERIAL, THE CHANNELS OF THE OTHER GROUP HAVING A SLOT-SHAPED CROSS SECTION WHICH EXTENDS INWARDLY FROM THE PERIMETER OF SAID BLOCK AND IS OPEN AT SAID PERIMETER, PARTITION MEANS FOR SUBDIVIDING SAID LONGITUDINAL CHANNELS OF SAID OTHER GROUP INTO LENGTHWISE SEQUENTIAL PORTIONS, SAID PARTITION MEANS BEING ADAPTED TO DEFLECT A FLOW OF ONE OF THE MEDIA
Claim 2
Independent Claim
106 words
A DEVICE FOR HEAT EXCHANGE BETWEEN TWO MEDIA, COMPRISING A BLOCK FORMED OF A SINGLE PIECE OF MATERIAL AND HAVING TWO GROUPS OF CHANNELS FOR SAID RESPECTIVE MEDIA, BOTH CHANNEL GROUPS EXTENDING IN THE SAME LONGITUDINAL DIRECTION, THE CHANNELS OF ONE GROUP HAVING A ROUND CROSS SECTION SURROUNDED BY SAID MATERIAL, THE CHANNELS OF THE OTHER GROUP HAVING A SLOT-SHAPED CROSS SECTION WHICH EXTENDS INWARDLY FROM THE PERIMETER OF SAID BLOCK AND IS OPEN AT SAID PERIMETER, PARTITION MEANS FOR SUBDIVIDING SAID LONGITUDINAL CHANNELS OF SAID OTHER GROUP INTO LENGTHWISE SEQUENTIAL PORTIONS, SAID PARTITION MEANS BEING ADAPTED TO DEFLECT A FLOW OF ONE OF THE MEDIA
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |