US3217797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Space radiator
Assignee: RTX Corp
•
Filing: 1961-11-30
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Granted: 1965-11-16
•
Expires: 1981-11-30
Abstract
No abstract record available.
Inventors
- 👤 David L Fitton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:26
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28D1/05316; B; B64; B64G; B64G1/00; B64G1/22; B64G1/46; B64G1/50; B64G1/503; B64G1/52; B64G1/56; F28F; F28F9/00; F28F9/007; F28F9/013; B64G1/42; F28D2001/0253; F28D2001/026; F28D2001/0273
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A RADIATOR CONSTRUCTION INCLUDING A PAIR OF SUBSTANTIALLY CIRCULAR, SPACED-APART HEADERS, A PLURALITY OF PARALLEL TUBES EXTENDING BETWEEN AND CONNECTED TO SAID HEADERS, A PLURALITY OF TUBE SUPPORTS EXTENDING BETWEEN SAID HEADERS IN PARALLEL RELATION TO THE TUBES AND SECURED TO THE HEADERS, EACH SUPPORT HAVING IN CROSS SECTION AN ARCUATE PORTION TO RECEIVE THE ASSOCIATE TUBE, A FLANGE PORTION, AND A STEM INTEGRALLY CONNECTING THE ARCUATE PORTION TO THE FLANGE PORTION, THE FLANGE PORTIONS OF THE SUPPORTS BEING LOCATED SUBSTANTIALLY IN A CYLINDRICAL CONFIGURATION COINCIDING WITH THE CIRCULAR PERIPHERIES OF THE HEADERS, AND A SLOTTED SLEEVE POSITIONED AROUND EACH TUBE WITH THE EDGES OF THE SLOT ENGAGING THE STEM PORTION OF THE SUPPORT AND WITH THE ENDS OF THE SLEEVE IN ENGAGEMENT WITH THE HEADERS.
Claim 2
Dependent Claim
126 words
A RADIATOR CONSTRUCTION INCLUDING A PAIR OF SUBSTANTIALLY CIRCULAR, SPACED-APART HEADERS, A PLURALITY OF PARALLEL TUBES EXTENDING BETWEEN AND CONNECTED TO SAID HEADERS, A PLURALITY OF TUBE SUPPORTS EXTENDING BETWEEN SAID HEADERS IN PARALLEL RELATION TO THE TUBES AND SECURED TO THE HEADERS, EACH SUPPORT HAVING IN CROSS SECTION AN ARCUATE PORTION TO RECEIVE THE ASSOCIATE TUBE, A FLANGE PORTION, AND A STEM INTEGRALLY CONNECTING THE ARCUATE PORTION TO THE FLANGE PORTION, THE FLANGE PORTIONS OF THE SUPPORTS BEING LOCATED SUBSTANTIALLY IN A CYLINDRICAL CONFIGURATION COINCIDING WITH THE CIRCULAR PERIPHERIES OF THE HEADERS, AND A SLOTTED SLEEVE POSITIONED AROUND EACH TUBE WITH THE EDGES OF THE SLOT ENGAGING THE STEM PORTION OF THE SUPPORT AND WITH THE ENDS OF THE SLEEVE IN ENGAGEMENT WITH THE HEADERS.
References Cited (Backward Citations)
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Cited
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Cited
US2480427A
Cited
US2751200A
Cited
US2743089A
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US2859947A
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US3045981A
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |