US4944254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for suspending horizontal heat exchange tubes on a vertical carrier tube, and a method of manufacturing the device
Assignee: Stein Industrie SA
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Filing: 1989-10-18
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Granted: 1990-07-31
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Expires: 2009-10-18
Abstract
Abstract A device for suspending horizontal heat exchange tubes (7, 8) on a vertical carrier tube (1) comprises a bottom support sleeve (2) welded at its bottom edge around the support tube, a top support sleeve (4) having its bottom edge resting on the top edge of the bottom support sleeve, said top support sleeve being provided on its sides with two half-shells (5, 6) of radius of curvature slightly greater than that of the horizontal tubes, and add-on half-shells (9, 10) of radius of curvature slightly greater than that of the horizontal tubes, welded edge-to-edge (19, 21; 20, 22) to the half-shells fixed to the top sleeve, thereby forming collars which clamp the horizontal heat exchange tubes on either side of the vertical carrier tubes. A method of manufacturing the device.
Inventors
- 👤 Jean Fournier
- 👤 Gilbert Delsol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:50
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/007; F28F9/013; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49387
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
132 words
A device for suspending horizontal heat exchange tubes (7, 8) on a vertical carrier tube (1), the device being characterized in that it comprises a bottom support sleeve (2) welded at its bottom edge around the support tube, a top support sleeve (4) having its bottom edge resting on the top edge of the bottom support sleeve, said top support sleeve being provided on its sides with two half-shells (5, 6) of radius of curvature slightly greater than that of the horizontal tubes, and add-on half-shells (9, 10) of radius of curvature slightly greater than that of the horizontal tubes, welded edge-to-edge (19, 21; 20, 22) to the half-shells fixed to the top sleeve, thereby forming collars which clamp the horizontal heat exchange tubes on either side of the vertical carrier tubes.
Claim 2
Independent Claim
132 words
A device for suspending horizontal heat exchange tubes (7, 8) on a vertical carrier tube (1), the device being characterized in that it comprises a bottom support sleeve (2) welded at its bottom edge around the support tube, a top support sleeve (4) having its bottom edge resting on the top edge of the bottom support sleeve, said top support sleeve being provided on its sides with two half-shells (5, 6) of radius of curvature slightly greater than that of the horizontal tubes, and add-on half-shells (9, 10) of radius of curvature slightly greater than that of the horizontal tubes, welded edge-to-edge (19, 21; 20, 22) to the half-shells fixed to the top sleeve, thereby forming collars which clamp the horizontal heat exchange tubes on either side of the vertical carrier tubes.
Claim 3
Dependent Claim
75 words
A device according to claim 1, characterized in that one or other of the facing half-shells (carried by the top or add-on sleeve) includes thin rims (11, 13: 12, 14,) that engage beneath a further out thick rims (15, 17; 16, 18) of the other half-shell, and in that the weld fillet (19, 21; 20, 22) is made between said further out thick rim and the edge of the facing half-shell beyond its thin rim.
Claim 4
Independent Claim
255 words
A method of manufacturing a device for suspending horizontal heat exchange tubes on a vertical tube, comprising a bottom support sleeve welded at its bottom edge around the support tube, a top support sleeve (4) having its bottom edge resting on the top edge of the bottom support sleeve, said top support sleeve being provided on its sides with two haIf-shells (5, 6) of radius of curvature slightly greater than that of the horizontal tubes, and add-on half-shells (9, 10) of radius of curvature slightly greater than that of the horizontal tubes, welded edge-to-edge (19, 21; 20, 22) to the half-shells fixed to the top sleeve, thereby forming collars which clamp the horizontal heat exchange tubes on either side of the vertical carrier tubes, the method being characterized in that a bottom support (2) is welded to the vertical tube (1) around the bottom edge of the bottom sleeve, a top support sleeve (4) is threaded on the vertical tube over the bottom support sleeve, the top support sleeve being provided with two side half-shells (5, 6) of radius of curvature slightly greater than that of the horizontal tubes, the horizontal tubes (7, 8) are applied against said half-shells, add-on half-shells (9. 10) of radius of curvature slightly greater than that of the horizontal tubes are applied against the horizontal tubes facing the side half-shells and meeting them edge-to-edge, thereby clamping the tubes between the half-shells, and the facing edges of the add-on half-shells and the side half-shells (19, 21; 20, 22) are welded together.
Claim 5
Independent Claim
255 words
A method of manufacturing a device for suspending horizontal heat exchange tubes on a vertical tube, comprising a bottom support sleeve welded at its bottom edge around the support tube, a top support sleeve (4) having its bottom edge resting on the top edge of the bottom support sleeve, said top support sleeve being provided on its sides with two haIf-shells (5, 6) of radius of curvature slightly greater than that of the horizontal tubes, and add-on half-shells (9, 10) of radius of curvature slightly greater than that of the horizontal tubes, welded edge-to-edge (19, 21; 20, 22) to the half-shells fixed to the top sleeve, thereby forming collars which clamp the horizontal heat exchange tubes on either side of the vertical carrier tubes, the method being characterized in that a bottom support (2) is welded to the vertical tube (1) around the bottom edge of the bottom sleeve, a top support sleeve (4) is threaded on the vertical tube over the bottom support sleeve, the top support sleeve being provided with two side half-shells (5, 6) of radius of curvature slightly greater than that of the horizontal tubes, the horizontal tubes (7, 8) are applied against said half-shells, add-on half-shells (9. 10) of radius of curvature slightly greater than that of the horizontal tubes are applied against the horizontal tubes facing the side half-shells and meeting them edge-to-edge, thereby clamping the tubes between the half-shells, and the facing edges of the add-on half-shells and the side half-shells (19, 21; 20, 22) are welded together.
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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) | 1993-07-30 | 1994-01-29 | 1994-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-30 | 1998-01-29 | 1998-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-30 | 2002-01-29 | 2002-07-31 | $7700.00 | Window Closed / Lapsed |