US3229722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchange element with internal flow diverters
Assignee: Individual
•
Filing: 1964-02-19
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Granted: 1966-01-18
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Expires: 1984-02-19
Abstract
No abstract record available.
Inventors
- 👤 Richard W Kritzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:26
CPC Classifications
F; F28; F28F; F28F13/00; F28F13/06; B; B21; B21J; B21J5/00; B21J5/06; B21J5/068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A HEAT EXCHANGE ELEMENT COMPRISING AN ELONGATED CONDUCIT HAVING A SUBSTANTIALLY RECTANGULAR CROSS-SECTIONAL SHAPE, A PLURALITY OF WALLS DEFINING PASSAGEWAYS IN SAID CONDUIT EXTENDING LENGTHWISE THEREOF AND POSITIONED ADJACENT EACH OTHER IN A TRANSVERSE DIRECTION AND THROUGH WHICH A REFRIGERANT IS ADAPTED TO FLOW, A PLURALITY OF OPENINGS THROUGH THE WALLS SEPARATING ADJACENT PASSAGEWAYS AND SPACED ALONG THE LENGTH THEREOF, AND DIVERTING MEANS ASSOCIATED WITH EACH OF SAID OPENINGS PROJECTING INTO THE PATH OF FLOW OF THE REFRIGERANT AND IN A DIRECTION OPPOSED TO THE DIRECTION OF FLOW THEREOF, THEREBY TO INTERCEPT AND DIVERT THE FLOW OF SOME OF THE REFRIGERANT IN EACH PASSAGEWAY INTO THE NEXT ADJACENT PASSAGEWAY AND TO DISTRIBUTE MORE EVENLY THE OVERALL FLOW OF REFRIGERANT THROUGH SAID CONDUIT.
Claim 2
Dependent Claim
122 words
A HEAT EXCHANGE ELEMENT COMPRISING AN ELONGATED CONDUCIT HAVING A SUBSTANTIALLY RECTANGULAR CROSS-SECTIONAL SHAPE, A PLURALITY OF WALLS DEFINING PASSAGEWAYS IN SAID CONDUIT EXTENDING LENGTHWISE THEREOF AND POSITIONED ADJACENT EACH OTHER IN A TRANSVERSE DIRECTION AND THROUGH WHICH A REFRIGERANT IS ADAPTED TO FLOW, A PLURALITY OF OPENINGS THROUGH THE WALLS SEPARATING ADJACENT PASSAGEWAYS AND SPACED ALONG THE LENGTH THEREOF, AND DIVERTING MEANS ASSOCIATED WITH EACH OF SAID OPENINGS PROJECTING INTO THE PATH OF FLOW OF THE REFRIGERANT AND IN A DIRECTION OPPOSED TO THE DIRECTION OF FLOW THEREOF, THEREBY TO INTERCEPT AND DIVERT THE FLOW OF SOME OF THE REFRIGERANT IN EACH PASSAGEWAY INTO THE NEXT ADJACENT PASSAGEWAY AND TO DISTRIBUTE MORE EVENLY THE OVERALL FLOW OF REFRIGERANT THROUGH SAID CONDUIT.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |