Patent US3704720A successfully refreshed from Google Patents.
US3704720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic deicer valve
Assignee: Bendix Corp
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Filing: 1970-12-28
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Granted: 1972-12-05
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Expires: 1990-12-28
Abstract
Abstract A pneumatically controlled deicer valve is provided for inflating the distensible elements adapted to prevent the accumulation of ice upon wings and other air-foils and surfaces of aircraft. Unregulated engine bleed air is supplied directly to the valve and on command of a timer fed directly into the deicing boot. A fluidic circuit in the valve causes the boot to be evacuated immediately after the boot has attained a predetermined value of pressure. An ejector which is part of the valve further reduces the pressure in the deicing boot until it is below ambient.
Inventors
- 👤 Frederick A Kaiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:13
CPC Classifications
B; B64; B64D; B64D15/00; B64D15/16; B64D15/166; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2065; Y10T137/2071; Y10T137/212; Y10T137/2125; Y10T137/2147
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
255 words
An apparatus for filing and emptying an enclosure intermittently with a fluid responsive to an external actuating means including a first phase wherein said enclosure is voided of fluid and a second phase wherein said enclosure is filled with fluid comprising: a source of fluid under pressure; valve means operatively connected to said enclosure and said fluid source for controlling fluid intake to or exhaust from said enclosure; first fluidic means which receives supply fluid from said fluid source and which, in response to said external actuating means, operatively connects said valve means to said enclosure for said second phase condition; second fluidic means having a fluid supply passage for receiving fluid from said fluid source; control passage means responsive to the fluid pressure in said enclosure; and a plurality of output passages operatively connecting said enclosure with said first fluidic means such that a first output is exhausted to atmosphere, and a second output provides a fluid signal when the pressure in said enclosure reaches a pre-established magnitude; and third fluidic means having a fluid supply passage for receiving fluid from said fluid source; a plurality of control passages responsive to said actuating means and responsive to said fluid signal generated by said second fluidic means; and a plurality of output passages operatively connected to said first fluidic means such that a first output is exhausted to atmosphere, and a second output provides a fluid signal to said first fluidic means thereby connecting the valve means with the enclosure for said first phase condition.
Claim 2
Independent Claim
255 words
An apparatus for filing and emptying an enclosure intermittently with a fluid responsive to an external actuating means including a first phase wherein said enclosure is voided of fluid and a second phase wherein said enclosure is filled with fluid comprising: a source of fluid under pressure; valve means operatively connected to said enclosure and said fluid source for controlling fluid intake to or exhaust from said enclosure; first fluidic means which receives supply fluid from said fluid source and which, in response to said external actuating means, operatively connects said valve means to said enclosure for said second phase condition; second fluidic means having a fluid supply passage for receiving fluid from said fluid source; control passage means responsive to the fluid pressure in said enclosure; and a plurality of output passages operatively connecting said enclosure with said first fluidic means such that a first output is exhausted to atmosphere, and a second output provides a fluid signal when the pressure in said enclosure reaches a pre-established magnitude; and third fluidic means having a fluid supply passage for receiving fluid from said fluid source; a plurality of control passages responsive to said actuating means and responsive to said fluid signal generated by said second fluidic means; and a plurality of output passages operatively connected to said first fluidic means such that a first output is exhausted to atmosphere, and a second output provides a fluid signal to said first fluidic means thereby connecting the valve means with the enclosure for said first phase condition.
Claim 3
Independent Claim
164 words
An apparatus for filling and emptying an enclosure intermittently with fluid responsive to external actuating means including a first phase wherein said enclosure is voided of fluid and a second phase wherein said enclosure is filled with fluid comprising: a source of fluid under pressure; evacuatiOn means operatively connected to said fluid source and said enclosure for voiding the enclosure of fluid; valve means operatively interconnecting said enclosure, said fluid source and said evacuation means for controlling fluid intake to and exhaust from said enclosure; and a fluidic device having a fluid supply passage for receiving fluid from said fluid source, at least one control passage responsive to said actuating means and to the fluid pressure in said enclosure, and a plurality of output passages operatively connected to said valve means such that a first output connects the valve means with the enclosure for said first phase condition and a second output connects the valve means with the enclosure for said second phase condition.
Claim 4
Independent Claim
164 words
An apparatus for filling and emptying an enclosure intermittently with fluid responsive to external actuating means including a first phase wherein said enclosure is voided of fluid and a second phase wherein said enclosure is filled with fluid comprising: a source of fluid under pressure; evacuatiOn means operatively connected to said fluid source and said enclosure for voiding the enclosure of fluid; valve means operatively interconnecting said enclosure, said fluid source and said evacuation means for controlling fluid intake to and exhaust from said enclosure; and a fluidic device having a fluid supply passage for receiving fluid from said fluid source, at least one control passage responsive to said actuating means and to the fluid pressure in said enclosure, and a plurality of output passages operatively connected to said valve means such that a first output connects the valve means with the enclosure for said first phase condition and a second output connects the valve means with the enclosure for said second phase condition.
Claim 5
Independent Claim
157 words
An apparatus for filling and emptying an enclosure intermittently with fluid responsive to external actuating means including a first phase wherein said enclosure is voided of fluid and a second phase wherein said enclosure is filled with fluid comprising: a source of fluid under pressure; evacuation means operatively connected to said fluid source and said enclosure for voiding the enclosure of fluid; valve means operatively interconnecting said enclosure, said fluid source and said evacuation means for controlling fluid intake to and exhaust from said enclosure; and first fluidic means which receives supply fluid from said fluid source and which in response to a pressure of predetermined magnitude in said enclosure operatively connects said valve means to said enclosure for said first phase condition; and second fluidic means which receives supply fluid from said fluid source and which in response to said external actuating means operatively connects said valve means to said enclosure for said second phase condition.
Claim 6
Independent Claim
157 words
An apparatus for filling and emptying an enclosure intermittently with fluid responsive to external actuating means including a first phase wherein said enclosure is voided of fluid and a second phase wherein said enclosure is filled with fluid comprising: a source of fluid under pressure; evacuation means operatively connected to said fluid source and said enclosure for voiding the enclosure of fluid; valve means operatively interconnecting said enclosure, said fluid source and said evacuation means for controlling fluid intake to and exhaust from said enclosure; and first fluidic means which receives supply fluid from said fluid source and which in response to a pressure of predetermined magnitude in said enclosure operatively connects said valve means to said enclosure for said first phase condition; and second fluidic means which receives supply fluid from said fluid source and which in response to said external actuating means operatively connects said valve means to said enclosure for said second phase condition.
Claim 7
Independent Claim
122 words
An apparatus for filling and emptying an enclosure intermittently with fluid responsive to external actuating means including a first phase wherein said enclosure is voided of fluid and a second phase wherein said enclosure is filled with fluid comprising: a source of fluid under pressure; evacuation means operatively connected to said fluid source and said enclosure for voiding the enclosure of fluid; valve means operatively interconnecting said enclosure, said fluid source and said evacuation means for controlling fluid intake to and exhaust from said enclosure; and fluidic means which receives supply fluid from said fluid source and which in response to a pressure of predetermined magnitude in said enclosure operatively connects said valve means to said enclosure for said first phase condition.
Claim 8
Independent Claim
122 words
An apparatus for filling and emptying an enclosure intermittently with fluid responsive to external actuating means including a first phase wherein said enclosure is voided of fluid and a second phase wherein said enclosure is filled with fluid comprising: a source of fluid under pressure; evacuation means operatively connected to said fluid source and said enclosure for voiding the enclosure of fluid; valve means operatively interconnecting said enclosure, said fluid source and said evacuation means for controlling fluid intake to and exhaust from said enclosure; and fluidic means which receives supply fluid from said fluid source and which in response to a pressure of predetermined magnitude in said enclosure operatively connects said valve means to said enclosure for said first phase condition.
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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) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |