US3782453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siphon breaking vent manifold for multiple pass heat exchanger
Assignee: MC ACQUISITION Corp
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Filing: 1972-06-19
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Granted: 1974-01-01
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Expires: 1992-06-19
Abstract
Abstract Liquid cooling apparatus comprising a series of upright heat exchange structures, each of which is provided with a top header cooperable therewith to present a siphon piping loop for assisting in filling, draining and uniform liquid flow through the exchangers. A common vent manifold interconnects all of the headers to maintain nearly atmospheric pressure above the liquid level therewithin while required vent air is supplied through the bottom of at least one of the heat exchange structures. As a result, during filling of the exchangers, siphon action is initiated substantially simultaneously in conjunction with automatic closing of the venting conditions through the bottom of at least one heat exchanger to assure equal liquid flow distribution from the common supply to all of the headers and thereby the heat exchangers joined thereto.
Inventors
- 👤 J Houx
- 👤 R Cates
- 👤 R Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:07
CPC Classifications
F; F28; F28C; F28C1/00; F28F; F28F25/00; F28F25/02; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10S; Y10S261/00; Y10S261/11; Y10T; Y10T137/00; Y10T137/2713; Y10T137/272; Y10T137/2842
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
166 words
In liquid cooling apparatus utilizing ambient airflow from the atmosphere to cool a liquid: a plurality of headers each having a liquid inlet; liquid outlet means associated with each header and defining separate paths for gravitation of liquid through said headers while in heat exchange relationship with said ambient airflow; liquid supply means communicating with said inlets for supplying liquid under pressure to said headers in parallel flow relationship, said outlet means of each header being open to the atmosphere and each header being operable to collect liquid therein to a level to effect sealing thereof from the atmosphere and thereby establish a siphoning action for drawing liquid through said inlet which assists said supply means in forcing said liquid through said inlet thereof for subsequent gravitation through said outlet means; and a common vent manifold interconnecting said headers to equalize air pressure therein, whereby said siphoning action in each of said headers is established only upon sealing of all of said headers from the atmosphere.
Claim 2
Dependent Claim
166 words
In liquid cooling apparatus utilizing ambient airflow from the atmosphere to cool a liquid: a plurality of headers each having a liquid inlet; liquid outlet means associated with each header and defining separate paths for gravitation of liquid through said headers while in heat exchange relationship with said ambient airflow; liquid supply means communicating with said inlets for supplying liquid under pressure to said headers in parallel flow relationship, said outlet means of each header being open to the atmosphere and each header being operable to collect liquid therein to a level to effect sealing thereof from the atmosphere and thereby establish a siphoning action for drawing liquid through said inlet which assists said supply means in forcing said liquid through said inlet thereof for subsequent gravitation through said outlet means; and a common vent manifold interconnecting said headers to equalize air pressure therein, whereby said siphoning action in each of said headers is established only upon sealing of all of said headers from the atmosphere.
Claim 3
Dependent Claim
44 words
Apparatus as set forth in claim 1, wherein each of said headers is provided with an opening above the level of liquid normally collected within the header, said vent manifold being joined to the headers in interconnecting relationship to said openings of the headers.
Claim 4
Dependent Claim
74 words
Apparatus as set forth in claim 2, wherein each of said outlet means includes a plurality of spaced, generally parallel, vertical tubes carrying gravitating liquid from the associated header into indirect heat exchange relationship with said airflow, each of said headers being configured and located to cause liquid received therein to submerge the upper ends of the associated tubes to effect sealing of said header from communication with the atmosphere through said associated tubes.
Claim 5
Dependent Claim
57 words
Apparatus as set forth in claim 3, wherein a perforated baffle is provided within the interior of each of said headers dividing said interior into upper and lower fluid collecting chambers, said inlet of each header communicating with said upper chamber thereof, said outlet means and said openings communicating with said lower chamber of the associated header.
Claim 6
Dependent Claim
169 words
In liquid cooling apparatus utilizing ambient airflow from the surrounding atmosphere to cool the liquid: a plurality of multiple pass heat exchange units each including: an elevated, liquid collecting siphon header; inlet means and outlet means depending from said header and defining separate paths for respectively delivering and discharging liquid from said header in heat exchange relationship with said ambient airflow, said outlet means being open to the atmosphere and said header being capable of collecting liquid therein to a level to effect sealing thereof from the atmosphere and thereby establish a siphoning action for drawing liquid through said inlet means which assists in forcing said liquid thereinto; fluid supply means disposed below said headers and communicating with said inlet means of the units for supplying liquid under pressure to said headers in parallel flow relationship; and a common vent manifold interconnecting said headers for equalizing air pressure therewithin to establish said siphoning action of said units substantially simultaneously upon sealing of all of said headers from the atmosphere.
Claim 7
Dependent Claim
169 words
In liquid cooling apparatus utilizing ambient airflow from the surrounding atmosphere to cool the liquid: a plurality of multiple pass heat exchange units each including: an elevated, liquid collecting siphon header; inlet means and outlet means depending from said header and defining separate paths for respectively delivering and discharging liquid from said header in heat exchange relationship with said ambient airflow, said outlet means being open to the atmosphere and said header being capable of collecting liquid therein to a level to effect sealing thereof from the atmosphere and thereby establish a siphoning action for drawing liquid through said inlet means which assists in forcing said liquid thereinto; fluid supply means disposed below said headers and communicating with said inlet means of the units for supplying liquid under pressure to said headers in parallel flow relationship; and a common vent manifold interconnecting said headers for equalizing air pressure therewithin to establish said siphoning action of said units substantially simultaneously upon sealing of all of said headers from the atmosphere.
Claim 8
Dependent Claim
74 words
Apparatus as set forth in claim 5, wherein each of said outlet means includes a plurality of spaced, generally parallel, vertical tubes carrying gravitating liquid from the associated header into indirect heat exchange relationship with said airFlow, each of said headers being configured and located to cause liquid received therein to submerge the upper ends of the associated tubes to effect sealing of said header from communication with the atmosphere through said associated tubes.
Claim 9
Dependent Claim
72 words
Apparatus as set forth in claim 6, wherein each of said inlet means includes a vertical riser having an upper end communicating with the associated header, the riser of each unit being spaced from said tubes thereof and carrying liquid in indirect heat exchange relationship with said airflow, each of said inlet means further including a fluid collecting box located directly below the associated riser and communicating with the lower end thereof.
Claim 10
Dependent Claim
53 words
Apparatus as set forth in claim 7, wherein said outlet means of each unit further includes an open structure underlying said tubes of the unit and configured to collect liquid gravitating from the associated header to a level submerging the lower ends of the associated tubes to seal the same from the atmosphere.
Claim 11
Dependent Claim
63 words
Apparatus as set forth in claim 8, wherein each of said units includes liquid distribution means underlying said box and said structure of the unit for receiving gravitating liquid, said structure being generally aligned at the same height adjacent the associated box, said box and said structure having openings in the lower portions thereof which permits liquid to gravitate to said distribution means.
References Cited (Backward Citations)
US3635042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |