Patent US2918494A successfully refreshed from Google Patents.
US3630232A
Expired / Lapsed
US
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Flow diverter
Assignee: American Hydrotherm Corp
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Filing: 1970-04-02
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Granted: 1971-12-28
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Expires: 1990-04-02
Abstract
Abstract A flow diverter particularly suited for diverting he flow of a heat transfer liquid to be employed in user equipment to either a heater, cooler or neither, to control the temperature thereof, comprising a housing including an intermediate wall or partition dividing the housing into two chambers. The wall is provided with three passages, one connecting the first and second chambers and the remaining two connecting the first chamber to two outlet ports to be connected to heater and cooler inlets, respectively. The first chamber is provided with an inlet port to be connected to the outlet of user equipment and a flow-diverting element for selectively connecting the passages in fluid flow communication with the first chamber. The second chamber is provided with two inlet ports to be connected to heater and cooler outlets, respectively, and an outlet port to be connected to the inlet of user equipment. The flow control element is constructed so as to balance the pressure forces on the top and bottom thereof thereby essentially eliminating the frictional forces which resist movement of the flow diverting element.
Inventors
- 👤 Floyd Hasselriis
- 👤 William M Teller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K11/085; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86815; Y10T137/86823
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
125 words
A flow diverter comprising: a closed housing, including first, second and third inlet ports and first, second and third outlet ports; a wall dividing the housing into first and second chambers; the first inlet port being connected to the first chamber, the second and third inlet ports being connected to the second chamber and the first outlet port being connected to the second chamber; means for placing the first and second chambers in fluid flow communication with each other; and a flow-diverting means positioned in the first chamber for selectively placing the first chamber in and out of fluid flow communication with the second outlet port, the third outlet port and said means for placing the first and second chambers in fluid flow communication, respectively.
Claim 2
Dependent Claim
125 words
A flow diverter comprising: a closed housing, including first, second and third inlet ports and first, second and third outlet ports; a wall dividing the housing into first and second chambers; the first inlet port being connected to the first chamber, the second and third inlet ports being connected to the second chamber and the first outlet port being connected to the second chamber; means for placing the first and second chambers in fluid flow communication with each other; and a flow-diverting means positioned in the first chamber for selectively placing the first chamber in and out of fluid flow communication with the second outlet port, the third outlet port and said means for placing the first and second chambers in fluid flow communication, respectively.
Claim 3
Dependent Claim
68 words
The flow diverter as defined in claim 1 wherein the flow-diverting means includes dividing means spaced from the interior of the housing defining a narrow passage therebetweeN, said dividing means forming with the housing a third chamber in fluid flow communication with the first chamber through the narrow passage, said fluid-diverting means further including means for placing the third chamber in fluid flow communication with the second chamber.
Claim 4
Dependent Claim
76 words
The flow diverter as defined in claim 1 wherein the means connecting the first and second chambers comprises a first passage through said wall and said second and third outlet ports being connected to the housing adjacent an intermediate portion of the wall, said wall further including second and third passages connecting the first chamber to the second and third outlet ports, respectively, the fluid-diverting means selectively opening and closing the first, second and third passages.
Claim 5
Dependent Claim
218 words
A flow diverter comprising: a closed housing, including an intermediate wall dividing the housing into first and second chambers; a first passage in the wall connecting the first and second chambers; a first outlet in the housing adjacent an intermediate portion of the wall; a second passage through the wall connecting the first chamber with the first outlet; a second outlet in the housing adjacent an intermediate portion of the wall; a third passage through the wall connecting the first chamber with the second outlet; a first inlet in the housing communicating with the first chamber; a second inlet in the housing communicating with the second chamber; a third inlet in the housing communicating with the second chamber; a third outlet in the housing communicating with the second chamber; a flow-diverting means being movably mounted in the first chamber, a portion of the flow-diverting means defining with the housing a third chamber in fluid flow communication with the first chamber through a narrow passage, said flow-diverting means including means for placing the third chamber in fluid flow communication with the second chamber; and operator means connected to the flow-diverting means to effect movement thereof to register the port thereof with the first, second and third passages to thereby selectively open and close the first, second and third passages.
Claim 6
Dependent Claim
218 words
A flow diverter comprising: a closed housing, including an intermediate wall dividing the housing into first and second chambers; a first passage in the wall connecting the first and second chambers; a first outlet in the housing adjacent an intermediate portion of the wall; a second passage through the wall connecting the first chamber with the first outlet; a second outlet in the housing adjacent an intermediate portion of the wall; a third passage through the wall connecting the first chamber with the second outlet; a first inlet in the housing communicating with the first chamber; a second inlet in the housing communicating with the second chamber; a third inlet in the housing communicating with the second chamber; a third outlet in the housing communicating with the second chamber; a flow-diverting means being movably mounted in the first chamber, a portion of the flow-diverting means defining with the housing a third chamber in fluid flow communication with the first chamber through a narrow passage, said flow-diverting means including means for placing the third chamber in fluid flow communication with the second chamber; and operator means connected to the flow-diverting means to effect movement thereof to register the port thereof with the first, second and third passages to thereby selectively open and close the first, second and third passages.
Claim 7
Dependent Claim
64 words
The flow diverter as defined in claim 4 wherein the flow-diverting means comprises a bottom portion, a top portion and an intermediate portion of narrower cross section than the top and bottom portions, said bottom portion including the port, said top portion defining with the housing the third chamber, the sides of the top portion being spaced from the housing defining said narrow passage.
Claim 8
Dependent Claim
93 words
The flow diverter as defined in claim 5 and further comprising a valve seat positioned in the first chamber having one surface thereof in engagement with the intermediate wall, said valve seat including first, second and third ports in registration with the first, second and third passages, the bottom portion of said flow-diverting means movably engaging another surface of said valve seat whereby the flow-diverting means opens and closes the first, second and third passages by selective registration of the port thereof with the first, second and third ports of the valve seat.
Claim 9
Dependent Claim
100 words
The flow diverter as defined in claim 6 wherein the other surface of the valve seat includes a groove in registration with the first port and the means of the flow-diverting means for placing the third chamber in fluid flow communication with the second chamber comprises a passage extending through the top, intermediate and bottom portion of the flow-diverting means in registration with the groove on the valve seat, whereby fluid flows from the third chamber through the passage in the flow-diverting means, the groove on the valve seat, the first port and the first passage into the second chamber.
Claim 10
Dependent Claim
62 words
The flow diverter as defined in claim 7 wherein the first port and first passage are positioned between and immediately adjacent to the second and third ports and the second and third passages, respectively, whereby the port of the flow-diverting means can simultaneously open portions of and Proportion flow through the first and second passages and the first and third passages, respectively.
Claim 11
Dependent Claim
49 words
The flow diverter as defined in claim 8 wherein the first passage includes a nozzle-shaped outlet in said second chamber, said second and third inlets being positioned in the housing adjacent said nozzle-shaped outlet, whereby fluid flowing from said nozzle-shaped outlet enhances flow through said second and third inlets.
Claim 12
Dependent Claim
33 words
The flow diverter as defined in claim 9 wherein the valve seat is a flat plate removably secured to the wall and the top portion of the flow-diverting means has a piston shape.
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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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |