Patent US3332479A successfully refreshed from Google Patents.
US3332479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger with expansible tube seal
Assignee: Carrier Corp
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Filing: 1964-01-02
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Granted: 1967-07-25
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Expires: 1984-01-02
Abstract
No abstract record available.
Inventors
- 👤 Jr William C Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:57
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/16; F28D7/163; F28D7/1638; F28F; F28F21/00; F28F21/06; F28F21/067; F28F9/00; F28F9/007; F28F9/013; F28F9/0131; F28F9/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A STRUCTURE FOR SUPPORTING HEAT EXCHANGER TUBES IN PREDETERMINED SPACED RELATIONSHIP ONE TO ANOTHER, THE COMBINATION OF: FIRST AND SECOND MEMBERS HAVING PLURAL AXIALLY ALIGNED OPENING THEREIN, EACH PAIR OF OPENINGS BEING ADAPTED TO RECEIVE A HEAT EXCHANGER TUBE THERETHROUGH; AND EXPANSIBLE MEANS COMPRISING AN ELASTOMERIC MATERIAL BETWEEN SAID FIRST AND SECOND MEMBERS AT EACH OF THE TUBE OPENINGS OPERABLE UPON EXPOSURE TO HEAT EXCHANGE MEDIUM TO EXPAND INTO CONTACT WITH THE HEAT EXCHANGER TUBE IN SAID PAIR OF OPENINGS SAID EXPANSIBLE MEANS BEING SUBSTANTIALLY UNAFFECTED BY TEMPERATURE CONDITIONS OF SAID HEAT EXCHANGE MEDIUM, ADJACENT SURFACES OF SAID FIRST AND SECOND MEMBERS HAVING RECESS MEANS FORMED THEREIN COMMUNICATING WITH EACH OF SAID FIRST AND SECOND MEMBER TUBE RECEIVING OPENINGS FOR RECEIVING SAID EXPANSIBLE MEANS.
Claim 2
Dependent Claim
125 words
IN A STRUCTURE FOR SUPPORTING HEAT EXCHANGER TUBES IN PREDETERMINED SPACED RELATIONSHIP ONE TO ANOTHER, THE COMBINATION OF: FIRST AND SECOND MEMBERS HAVING PLURAL AXIALLY ALIGNED OPENING THEREIN, EACH PAIR OF OPENINGS BEING ADAPTED TO RECEIVE A HEAT EXCHANGER TUBE THERETHROUGH; AND EXPANSIBLE MEANS COMPRISING AN ELASTOMERIC MATERIAL BETWEEN SAID FIRST AND SECOND MEMBERS AT EACH OF THE TUBE OPENINGS OPERABLE UPON EXPOSURE TO HEAT EXCHANGE MEDIUM TO EXPAND INTO CONTACT WITH THE HEAT EXCHANGER TUBE IN SAID PAIR OF OPENINGS SAID EXPANSIBLE MEANS BEING SUBSTANTIALLY UNAFFECTED BY TEMPERATURE CONDITIONS OF SAID HEAT EXCHANGE MEDIUM, ADJACENT SURFACES OF SAID FIRST AND SECOND MEMBERS HAVING RECESS MEANS FORMED THEREIN COMMUNICATING WITH EACH OF SAID FIRST AND SECOND MEMBER TUBE RECEIVING OPENINGS FOR RECEIVING SAID EXPANSIBLE MEANS.
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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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |