US3199582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger tube anti-vibration structure
Assignee: Foster Wheeler Inc
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Filing: 1962-04-06
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Granted: 1965-08-10
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Expires: 1982-04-06
Abstract
No abstract record available.
Inventors
- 👤 Vogt Edward
- 👤 Samuel J Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:27
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/06; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20; F22B37/205; F22B37/206; F28F; F28F9/00; F28F9/007; F28F9/013; F28F9/0132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A HEAT EXCHANGER HAVING A SHELL AND A TUBE BUNDLE WITHIN THE SHELL INCLUDING A PLURALITY OF LAYERS OF U-SHAPED TUBES, SUCCESSIVE LAYERS OF TUBES HAVING PROGRESSIVELY GRADUATED RADII OF CURVATURE; AN ANTI-VIBRATION STRUCTURE COMPRISING A PLURALITY OF CONVOLUTED SPACING RODS DISPOSED BETWEEN THE LAYERSD OF TUBES AT THE APICES THEREOF EXTENDING IN A DIRECTION PERPENDICULAR TO THE TUBE PLANES, THE RODS HAVING A THICKNESS AND CONFIGURATION OF CRESTS AND TROUGHS CONFORMING TO THE SPACING AND PITCH OF THE TUBES THE TUBES IN ABUTTING RELATIONSHIP WITH CERTAIN OF SAID CRESTS AND TROUGHS WHEREBY THE TUBES ARE RESTRAINED AGAINST MOVEMENT IN SAID PERPENDICULAR DIRECTION, AND STRAP
Claim 2
Dependent Claim
106 words
IN A HEAT EXCHANGER HAVING A SHELL AND A TUBE BUNDLE WITHIN THE SHELL INCLUDING A PLURALITY OF LAYERS OF U-SHAPED TUBES, SUCCESSIVE LAYERS OF TUBES HAVING PROGRESSIVELY GRADUATED RADII OF CURVATURE; AN ANTI-VIBRATION STRUCTURE COMPRISING A PLURALITY OF CONVOLUTED SPACING RODS DISPOSED BETWEEN THE LAYERSD OF TUBES AT THE APICES THEREOF EXTENDING IN A DIRECTION PERPENDICULAR TO THE TUBE PLANES, THE RODS HAVING A THICKNESS AND CONFIGURATION OF CRESTS AND TROUGHS CONFORMING TO THE SPACING AND PITCH OF THE TUBES THE TUBES IN ABUTTING RELATIONSHIP WITH CERTAIN OF SAID CRESTS AND TROUGHS WHEREBY THE TUBES ARE RESTRAINED AGAINST MOVEMENT IN SAID PERPENDICULAR DIRECTION, AND STRAP
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |