US3598116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Respirator with fluid amplifiers
Assignee: RTX Corp
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Filing: 1969-06-17
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Granted: 1971-08-10
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Expires: 1989-06-17
Abstract
Abstract An on-off inhalation valve of a respirator for admitting fluid to the lungs of a patient is controlled by a flip-flop fluid amplifier driven by a fluid amplifier during the exhalation cycle and by another fluid amplifier during the inhalation cycle.
Inventors
- 👤 Joseph C Peters
- 👤 Hermann Ziermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:25
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/20; A61M16/201; A61M16/206; A61M16/207; A61M16/08; A61M16/0816; A61M16/0841; A61M16/0858; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/212; Y10T137/2125; Y10T137/2147
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
175 words
A fluidic-controlled respirator having a source of fluid, a conduit including delivery means connected to said source for filling the lungs of a patient including a normally closed valve for blocking off the flow of the fluid in said conduit and a normally opened valve in said conduit for interconnecting the lungs to ambient, a. means for intermittently and synchronously opening said normally closeD valve and closing said normally opened valve, 1. said means including a first fluid amplifier having an output channel for directing actuating pressure to said normally closed and normally opened valve for effectuating opening and closing thereof respectively, 2. a second fluid amplifier having an output channel connected to a control port of said first fluid amplifier, 3. a third fluid amplifier having an output channel connected to another control port of said first fluid amplifier, and 4. means responsive to the breathing of said patient for controlling said second and third fluid amplifier whereby said first amplifier intermittently opens and closes said normally closed valve and said normally opened valve.
Claim 2
Dependent Claim
175 words
A fluidic-controlled respirator having a source of fluid, a conduit including delivery means connected to said source for filling the lungs of a patient including a normally closed valve for blocking off the flow of the fluid in said conduit and a normally opened valve in said conduit for interconnecting the lungs to ambient, a. means for intermittently and synchronously opening said normally closeD valve and closing said normally opened valve, 1. said means including a first fluid amplifier having an output channel for directing actuating pressure to said normally closed and normally opened valve for effectuating opening and closing thereof respectively, 2. a second fluid amplifier having an output channel connected to a control port of said first fluid amplifier, 3. a third fluid amplifier having an output channel connected to another control port of said first fluid amplifier, and 4. means responsive to the breathing of said patient for controlling said second and third fluid amplifier whereby said first amplifier intermittently opens and closes said normally closed valve and said normally opened valve.
Claim 3
Dependent Claim
18 words
a second fluid amplifier having an output channel connected to a control port of said first fluid amplifier,
Claim 4
Dependent Claim
18 words
a second fluid amplifier having an output channel connected to a control port of said first fluid amplifier,
Claim 5
Dependent Claim
22 words
A fluidic-controlled respirator as claimed in claim 1 including an ejector disposed between said normally opened valve and said normally closed valve.
Claim 6
Dependent Claim
18 words
A fluidic-controlled respirator as claimed in claim 1 including a nebulizer disposed downstream of said normally opened valve.
Claim 7
Dependent Claim
19 words
a third fluid amplifier having an output channel connected to another control port of said first fluid amplifier, and
Claim 8
Dependent Claim
19 words
a third fluid amplifier having an output channel connected to another control port of said first fluid amplifier, and
Claim 9
Dependent Claim
33 words
means responsive to the breathing of said patient for controlling said second and third fluid amplifier whereby said first amplifier intermittently opens and closes said normally closed valve and said normally opened valve.
Claim 10
Dependent Claim
33 words
means responsive to the breathing of said patient for controlling said second and third fluid amplifier whereby said first amplifier intermittently opens and closes said normally closed valve and said normally opened valve.
Claim 11
Dependent Claim
29 words
A fluidic-controlled respirator as claimed in claim 2 including adjustable means for regulating the flow of fluid admitted to the lungs of the patient disposed upstream of said ejector.
Claim 12
Dependent Claim
50 words
A fluidic-controlled respirator as claimed in claim 1 including adjustable means for regulating the pressure level required to switch flow from one output channel to the other output channel of said first fluid amplifier, said last-mentioned means being disposed in proximity to the power stream of said first fluid amplifier.
Claim 13
Dependent Claim
29 words
A fluidic-controlled respirator as claimed in claim 1 wherein said first fluid amplifier is a flip-flop type such that the power stream has no preference to either output channels.
Claim 14
Dependent Claim
33 words
A fluidic-controlled respirator as claimed in claim 1 wherein said second and third fluid amplifiers are the type where the fluid from the power stream normally is directed to a preferred output channel.
Claim 15
Dependent Claim
40 words
A fluidic-controlled respirator as claimed in claim 1 including a balloon type element having its interior exposed to pressure in the lungs of the patient for closing an orifice in communication with the control port of said third fluid amplifier.
References Cited (Backward Citations)
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 |