US3274797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger including a capillary tube section
Assignee: Peerless of America Inc
•
Filing: 1964-05-08
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Granted: 1966-09-27
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Expires: 1984-05-08
Abstract
No abstract record available.
Inventors
- 👤 Richard W Kritzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:42
CPC Classifications
F; F25; F25B; F25B39/00; F28; F28D; F28D7/00; F28D7/0008; F28D7/0016; F25B2400/00; F25B2400/05; F25B2400/052; F25B2400/054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A HEAT EXCHANGER ELEMENT COMPRISING (A) A CONDENSER SECTION MEANS, (B) AN EVAPORATOR SECTION MEANS, AND (C) A CAPILLARY TUBE SECTION MEANS, (D) SAID FIRST TWO MENTIONED MEANS EACH INCLUDING AN ELONGATED CONDUIT HAVING A PLURALITY OF ADJACENT PASSAGEWAYS EXTENDING LENGTHWISE THEREOF FOR SIMULTANEOUSLY FEEDING REFRIGERANT IN THE SAME DIRECTION THROUGH ALL OF SAID PASSAGEWAYS, (E) SAID CAPILLARY TUBE SECTION MEANS BEING IN FLUID COMMUNICATION WITH SAID TWO FIRST MENTIONED MEANS AND INCLUDING AN ELONGATED CONDUIT HAVING A PLURALITY OF ADJACENT PASSAGEWAYS EXTENDING LENGTHWISE
Claim 2
Dependent Claim
84 words
A HEAT EXCHANGER ELEMENT COMPRISING (A) A CONDENSER SECTION MEANS, (B) AN EVAPORATOR SECTION MEANS, AND (C) A CAPILLARY TUBE SECTION MEANS, (D) SAID FIRST TWO MENTIONED MEANS EACH INCLUDING AN ELONGATED CONDUIT HAVING A PLURALITY OF ADJACENT PASSAGEWAYS EXTENDING LENGTHWISE THEREOF FOR SIMULTANEOUSLY FEEDING REFRIGERANT IN THE SAME DIRECTION THROUGH ALL OF SAID PASSAGEWAYS, (E) SAID CAPILLARY TUBE SECTION MEANS BEING IN FLUID COMMUNICATION WITH SAID TWO FIRST MENTIONED MEANS AND INCLUDING AN ELONGATED CONDUIT HAVING A PLURALITY OF ADJACENT PASSAGEWAYS EXTENDING LENGTHWISE
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |