Patent US3339260A successfully refreshed from Google Patents.
US3339260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing heat exchangers
Assignee: Olin Corp
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Filing: 1964-11-25
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Granted: 1967-09-05
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Burne
- 👤 Raghunath V Date
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:49
CPC Classifications
F; F28; F28F; F28F13/00; F28F13/003; B; B21; B21D; B21D53/00; B21D53/02; B21D53/06; F28D; F28D7/00; F28D7/10; F28D7/106; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49361; Y10T29/49393; Y10T29/4981; Y10T29/49826; Y10T29/49879; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12069
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A METHOD OF PRODUCING A TUBULAR HEAT EXCHANGER HAVING A BODY OF PERVIOUS MATERIAL THEREIN, SAID BODY OF PERVIOUS MATERIAL HAVING CHANNELS THEREIN FOR CONTROLLED CIRCULATION OF A HEAT EXCHANGE MEDIUM, THE METHOD COMPRISING (A) A POSITIONING A FIRST TUBULAR MEMBER WITHIN A SECOND TUBULAR MEMBER, SAID SECOND TUBULAR MEMBER HAVING AT LEAST ONE RADIAL OPENING THEREIN, (B) INSERTING AT LEAST ONE PREFORMED REMOVABLE CORE IN THE SPACE BETWEEN SAID FIRST AND SECOND TUBULAR MEMBERS, SAID CORE BEING ON A CONFIGURATION OF THE DESIRED CHANNEL AND IN COMMUNICATION WITH SAID RADIAL OPENING IN SAID SECOND TUBULAR MEMBER, (C) INTRODUCING PARTICULATE METALLIC MATERIAL INTO THE REMAINING SPACE BETWEEN SAID FIRST AND SECOND TUBULAR MEMBERS, (D) CREATING A METALLIC BOND BETWEEN THE PARTICLES OF SAID PARTICULATE METALLIC MATERIAL AND BETWEEN SAID PARTICULATE METALLIC MATERIAL AND SAID FIRST AND SECOND TUBULAR MEMBERS, TO FORM A PERVIOUS BODY IN THE SPACE BETWEEN SAID FIRST AND SECOND TUBULAR MEMBERS, AND (E) RRMOVING SAID CORE TO FORM A CHANNEL IN SAID PERVIOUS BODY IN COMMUNICATION WITH SAID RADIAL OPENING IN SAID SECOND TUBULAR MEMBER.
Claim 2
Independent Claim
178 words
A METHOD OF PRODUCING A TUBULAR HEAT EXCHANGER HAVING A BODY OF PERVIOUS MATERIAL THEREIN, SAID BODY OF PERVIOUS MATERIAL HAVING CHANNELS THEREIN FOR CONTROLLED CIRCULATION OF A HEAT EXCHANGE MEDIUM, THE METHOD COMPRISING (A) A POSITIONING A FIRST TUBULAR MEMBER WITHIN A SECOND TUBULAR MEMBER, SAID SECOND TUBULAR MEMBER HAVING AT LEAST ONE RADIAL OPENING THEREIN, (B) INSERTING AT LEAST ONE PREFORMED REMOVABLE CORE IN THE SPACE BETWEEN SAID FIRST AND SECOND TUBULAR MEMBERS, SAID CORE BEING ON A CONFIGURATION OF THE DESIRED CHANNEL AND IN COMMUNICATION WITH SAID RADIAL OPENING IN SAID SECOND TUBULAR MEMBER, (C) INTRODUCING PARTICULATE METALLIC MATERIAL INTO THE REMAINING SPACE BETWEEN SAID FIRST AND SECOND TUBULAR MEMBERS, (D) CREATING A METALLIC BOND BETWEEN THE PARTICLES OF SAID PARTICULATE METALLIC MATERIAL AND BETWEEN SAID PARTICULATE METALLIC MATERIAL AND SAID FIRST AND SECOND TUBULAR MEMBERS, TO FORM A PERVIOUS BODY IN THE SPACE BETWEEN SAID FIRST AND SECOND TUBULAR MEMBERS, AND (E) RRMOVING SAID CORE TO FORM A CHANNEL IN SAID PERVIOUS BODY IN COMMUNICATION WITH SAID RADIAL OPENING IN SAID SECOND TUBULAR MEMBER.
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |