Patent US3598179A successfully refreshed from Google Patents.
US3598179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Individual
•
Filing: 1968-09-10
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Granted: 1971-08-10
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Expires: 1988-09-10
Abstract
Abstract The invention provides a heat exchanger comprising first and second rows of vertically arranged tubes, the outlets of the tubes in each row being connected to separate condensate headers, to which separate traps are connected, and the steam inlets of the second row of tubes being connected to the steam outlets of the first row of tubes whereby the tubes of the first row are automatically purged and air binding is prevented.
Inventors
- 👤 Louis F Giauque
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:17
CPC Classifications
F; F28; F28D; F28D21/00; F28D21/0001; F28D21/0003; F28D21/0005; F28D21/0008; F24; F24D; F24D19/00; F24D19/08; F24D19/082; F24D19/083; F24D19/085; F24D19/087; F24D5/00; F28B; F28B1/00; F28B1/06; F28B2001/065; Y; Y10; Y10S; Y10S165/00; Y10S165/184; Y10S165/217; Y10S165/221; Y10S165/222
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
176 words
Apparatus for passing steam in heat exchange relation with air having an initial temperature below the freezing point of water, said apparatus comprising a plurality of exchanger tubes arranged in first and second rows, the second row being arranged behind the first row and each heat exchanger tube having a steam inlet and a steam outlet, means for directing a stream of air across the exterior surfaces of the tubes so that the air passes across the tubes of the first row before passing across the tubes of the second row, means to supply steam to the steam inlets of the tubes of the first row for flow therethrough, means to connect the steam outlets of the tubes of the first row to the steam inlets of the tubes of the second row, and separate first and second trap means to prevent escape of steam but to discharge condensate, the tubes of the first row being connected to said first trap means and the tubes of the second row being connected to said second trap means.
Claim 2
Dependent Claim
176 words
Apparatus for passing steam in heat exchange relation with air having an initial temperature below the freezing point of water, said apparatus comprising a plurality of exchanger tubes arranged in first and second rows, the second row being arranged behind the first row and each heat exchanger tube having a steam inlet and a steam outlet, means for directing a stream of air across the exterior surfaces of the tubes so that the air passes across the tubes of the first row before passing across the tubes of the second row, means to supply steam to the steam inlets of the tubes of the first row for flow therethrough, means to connect the steam outlets of the tubes of the first row to the steam inlets of the tubes of the second row, and separate first and second trap means to prevent escape of steam but to discharge condensate, the tubes of the first row being connected to said first trap means and the tubes of the second row being connected to said second trap means.
Claim 3
Dependent Claim
39 words
Apparatus according to claim 1, including a first header to which the steam inlets of the first row of tubes are connected and a second header to which the steam inlets of the second row of tubes are connected.
Claim 4
Dependent Claim
227 words
Apparatus for passing steam in heat exchange relation with air having an initial temperature below the freezing point of water, said apparatus comprising a plurality of vertically extending heat exchanger tubes arranged in first and second rows, the tubes of the second row being arranged behind the tubes of the first row and each tube having a steam inlet and a steam outlet, means to direct a stream of air substantially horizontally across the exterior surfaces of the tubes so that the air passes across the tubes of the first row before passing across the tubes of the second row, means to supply steam to the steam inlets of the tubes of the first row for flow therethrough, means interconnecting the steam outlets of the tubes of the first row with the steam inlets of the tubes of the second row, separate first and second condensate headers connected to the steam outlets of the tubes of the first row, and the tubes of the second row, respectively, the first and second condensate headers being isolated from one another, first and second traps to prevent escape of steam but to discharge condensate, first conduit means interconnecting the first condensate header and the first trap, and second conduit means interconnecting the second condensate header and the second trap, said first and second conduit means being isolated from one another.
Claim 5
Dependent Claim
227 words
Apparatus for passing steam in heat exchange relation with air having an initial temperature below the freezing point of water, said apparatus comprising a plurality of vertically extending heat exchanger tubes arranged in first and second rows, the tubes of the second row being arranged behind the tubes of the first row and each tube having a steam inlet and a steam outlet, means to direct a stream of air substantially horizontally across the exterior surfaces of the tubes so that the air passes across the tubes of the first row before passing across the tubes of the second row, means to supply steam to the steam inlets of the tubes of the first row for flow therethrough, means interconnecting the steam outlets of the tubes of the first row with the steam inlets of the tubes of the second row, separate first and second condensate headers connected to the steam outlets of the tubes of the first row, and the tubes of the second row, respectively, the first and second condensate headers being isolated from one another, first and second traps to prevent escape of steam but to discharge condensate, first conduit means interconnecting the first condensate header and the first trap, and second conduit means interconnecting the second condensate header and the second trap, said first and second conduit means being isolated from one another.
Claim 6
Dependent Claim
39 words
Apparatus according to claim 3, including a first header to which the steam inlets of the first row of tubes are connected and a second header to which the steam inlets of the second row of tubes are connected.
Claim 7
Dependent Claim
106 words
Apparatus according to claim 1, in which the tubes are horizontal and are stacked vertically one upon the other in each row, the tubes extending between a first vertically extending header, to which the steam outlets of the first row of tubes and the steam inlets of the second row of tubes are connected, and second and third vertically extending headers to which the steam inlets of the first row of tubes and the steam outlets of the second row of tubes are respectively connected, said first trap means being connected to said first header, and said second trap means being connected to said third header.
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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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |