US3556409A
Expired / Lapsed
US
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Fluid control device
Assignee: Linde Sverige AB
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Filing: 1968-10-22
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Granted: 1971-01-19
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Expires: 1988-10-22
Abstract
Abstract A fluidistor fluid control device comprising a plurality of channels such as Laval nozzles, each channel extending from a control jet inlet to an outlet, such that the direction of flow of fluid through the channel is dependent on the relative flow characteristics of the channels. These flow characteristics can be varied by varying the shape or size of the channels, or by applying a separate control fluid to the interior of one or more of the channels.
Inventors
- 👤 Dag Olof Alfred Johannisson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:27
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/08; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2273
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
87 words
A fluid control device comprising a housing having at least one inlet for a fluid control jet input, at least two channels each being a Laval nozzle, the two Laval nozzles arranged opposite each other on opposite sides of the said inlet, each channel in fluid communication with the said inlet at one end, the other end of each channel being an outlet end, such that the channel into which the control jet flows from the inlet is dependent upon the relative flow characteristics of the channels.
Claim 2
Dependent Claim
87 words
A fluid control device comprising a housing having at least one inlet for a fluid control jet input, at least two channels each being a Laval nozzle, the two Laval nozzles arranged opposite each other on opposite sides of the said inlet, each channel in fluid communication with the said inlet at one end, the other end of each channel being an outlet end, such that the channel into which the control jet flows from the inlet is dependent upon the relative flow characteristics of the channels.
Claim 3
Dependent Claim
23 words
A fluid control device according to claim 1 wherein the inlet is formed as a plurality of openings arranged annularly between the channels.
Claim 4
Dependent Claim
20 words
A fluid control device according to claim 1 wherein the inlet is formed as an annular slot between the channels.
Claim 5
Dependent Claim
36 words
A fluid control device according to claim 1 wherein at least one of said channels includes a control passage arranged to direct fluid directly into its respective channel for affecting the flow characteristics of that channel.
Claim 6
Dependent Claim
21 words
A fluid control device according to claim 4 wherein said control passage terminates in an annular passage in its respective channel.
Claim 7
Dependent Claim
28 words
A fluid control device according to claim 4 wherein said control passage comprises a plurality of separate passages extending through the housing and terminating in its respective channel.
Claim 8
Dependent Claim
23 words
A fluid control device according to claim 1 including means for mounting the channels such that the distance between them can be varied.
Claim 9
Dependent Claim
43 words
A fluid control device according to claim 7 wherein said means for mounting further permits at least one of said channels to be removed and replaced by another channel of a different size, whereby the relative areas of the channels can be varied.
Claim 10
Dependent Claim
88 words
A fluid contrOl device comprising a housing having at least one inlet for a fluid control jet input, a plurality of channels, each channel in fluid communication with the said inlet at one end, the other end of each channel being an outlet end, each of said channels being Laval nozzles such that the channel into which the control jet flows from the inlet is dependent upon the relative flow characteristics of the channels, the inlet being formed as a plurality of openings arranged annularly between the channels.
Claim 11
Dependent Claim
88 words
A fluid contrOl device comprising a housing having at least one inlet for a fluid control jet input, a plurality of channels, each channel in fluid communication with the said inlet at one end, the other end of each channel being an outlet end, each of said channels being Laval nozzles such that the channel into which the control jet flows from the inlet is dependent upon the relative flow characteristics of the channels, the inlet being formed as a plurality of openings arranged annularly between the channels.
Claim 12
Dependent Claim
85 words
A fluid control device comprising a housing having at least one inlet for a fluid control jet input, a plurality of channels, each channel in fluid communication with the said inlet at one end, the other end of each channel being an outlet end, each of said channels being Laval nozzles such that the channel into which the control jet flows from the inlet is dependent upon the relative flow characteristics of the channels, the inlet being formed as an annular slot between the channels.
Claim 13
Dependent Claim
85 words
A fluid control device comprising a housing having at least one inlet for a fluid control jet input, a plurality of channels, each channel in fluid communication with the said inlet at one end, the other end of each channel being an outlet end, each of said channels being Laval nozzles such that the channel into which the control jet flows from the inlet is dependent upon the relative flow characteristics of the channels, the inlet being formed as an annular slot between the channels.
Claim 14
Dependent Claim
113 words
A fluid control device comprising a housing having at least one inlet for a fluid control jet input, a plurality of channels, each channel in fluid communication with the said inlet at one end, the other end of each channel being an outlet end, each of said channels being Laval nozzles such that the channel into which the control jet flows from the inlet is dependent upon the relative flow characteristics of the channels, at least one of said channels including a control passage arranged to direct fluid directly into its respective channel for effecting the flow characteristics of that channel, said control passage terminating in an annular passage in its respective channel.
Claim 15
Dependent Claim
113 words
A fluid control device comprising a housing having at least one inlet for a fluid control jet input, a plurality of channels, each channel in fluid communication with the said inlet at one end, the other end of each channel being an outlet end, each of said channels being Laval nozzles such that the channel into which the control jet flows from the inlet is dependent upon the relative flow characteristics of the channels, at least one of said channels including a control passage arranged to direct fluid directly into its respective channel for effecting the flow characteristics of that channel, said control passage terminating in an annular passage in its respective channel.
Claim 16
Dependent Claim
126 words
A fluid control device comprising a housing having at least one inlet for a fluid control jet input, a plurality of channels, each channel in fluid communication with the said inlet at one end, the other end of each channel being an outlet end, each of said channels being Laval nozzles such that the channel into which the control jet flows from the inlet is dependent upon the relative flow characteristics of the channels, and including means for mounting the channels such that the distance between them can be varied, and wherein said means for mounting further permits at least one of said channels to be removed and replaced by another channel of a different size, whereby the relative areas of the channels can be varied.
Claim 17
Dependent Claim
126 words
A fluid control device comprising a housing having at least one inlet for a fluid control jet input, a plurality of channels, each channel in fluid communication with the said inlet at one end, the other end of each channel being an outlet end, each of said channels being Laval nozzles such that the channel into which the control jet flows from the inlet is dependent upon the relative flow characteristics of the channels, and including means for mounting the channels such that the distance between them can be varied, and wherein said means for mounting further permits at least one of said channels to be removed and replaced by another channel of a different size, whereby the relative areas of the channels can be varied.
References Cited (Backward Citations)
US3285262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |