US3994618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple outlet pitot pump with different output flows and/or pressures
Assignee: Kobe Inc
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Filing: 1975-01-13
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Granted: 1976-11-30
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Expires: 1995-01-13
Abstract
Abstract A multiple outlet pitot pump with different output flows and/or pressures, comprising: a rotary casing; means for delivering a fluid to be pumped to the rotary casing; at least two discharge ducts generally coaxial with the rotary casing; at least two pitot tubes in and extending radially of the rotary casing, the pitot tubes respectively having adjacent their outer ends inlets facing in a direction opposite to the direction of rotation of the rotary casing, the pitot tubes respectively having radial passages and having adjacent their inner ends outlets respectively connecting the inner ends of the radial passages to the discharge ducts, and the pitot tubes further respectively having circumferentially rearwardly extending passages connecting the inlets to the outer ends of the radial passages; the inlets being different radial distances from the axis of the rotary casing to deliver fluid to the discharge ducts at different pressures; and the inlets being of different sizes to deliver fluid to the discharge ducts at different flow rates.
Inventors
- 👤 John W. Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:08
CPC Classifications
F; F04; F04D; F04D1/00; F04D1/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
156 words
In a multiple outlet pitot pump, the combination of: a. a rotary casing containing a pumping chamber; b. means for delivering a fluid to be pumped to the pumping chamber in said rotary casing; c. at least two discharge ducts generally coaxial with said rotary casing; d. at least two pitot tubes in and extending radially of said rotary casing, said pitot tubes respectively having adjacent their outer ends inlets in the pumping chamber facing in a direction opposite to the direction of rotation of said rotary casing, said pitot tubes respectively having radial passages and having adjacent their inner ends outlets respectively connecting the inner ends of said radial passages to said discharge ducts, and said pitot tubes further respectively having circumferentially rearwardly extending passages connecting said inlets to the outer ends of said radial passages; and e. said inlets being of different sizes to deliver fluid to said discharge ducts at different flow rates.
Claim 2
Dependent Claim
156 words
In a multiple outlet pitot pump, the combination of: a. a rotary casing containing a pumping chamber; b. means for delivering a fluid to be pumped to the pumping chamber in said rotary casing; c. at least two discharge ducts generally coaxial with said rotary casing; d. at least two pitot tubes in and extending radially of said rotary casing, said pitot tubes respectively having adjacent their outer ends inlets in the pumping chamber facing in a direction opposite to the direction of rotation of said rotary casing, said pitot tubes respectively having radial passages and having adjacent their inner ends outlets respectively connecting the inner ends of said radial passages to said discharge ducts, and said pitot tubes further respectively having circumferentially rearwardly extending passages connecting said inlets to the outer ends of said radial passages; and e. said inlets being of different sizes to deliver fluid to said discharge ducts at different flow rates.
Claim 3
Dependent Claim
162 words
In a multiple outlet pitot pump, the combination of: a. a rotary casing containing a pumping chamber; b. means for delivering a fluid to be pumped to the pumping chamber in said rotary casing; c. at least two discharge ducts generally coaxial with said rotary casing; d. at least two pitot tubes in and extending radially of said rotary casing, said pitot tubes respectively having adjacent their outer ends inlets in the pumping chamber facing in a direction opposite to the direction of rotation of said rotary casing, said pitot tubes respectively having radial passages and having adjacent their inner ends outlets respectively connecting the inner ends of said radial passages to said discharge ducts, and said pitot tubes further respectively having circumferentially rearwardly extending passages connecting said inlets to the outer ends of said radial passages; and e. said inlets being different radial distances from the axis of the rotary casing to deliver fluid to said discharge ducts at different pressures.
Claim 4
Dependent Claim
162 words
In a multiple outlet pitot pump, the combination of: a. a rotary casing containing a pumping chamber; b. means for delivering a fluid to be pumped to the pumping chamber in said rotary casing; c. at least two discharge ducts generally coaxial with said rotary casing; d. at least two pitot tubes in and extending radially of said rotary casing, said pitot tubes respectively having adjacent their outer ends inlets in the pumping chamber facing in a direction opposite to the direction of rotation of said rotary casing, said pitot tubes respectively having radial passages and having adjacent their inner ends outlets respectively connecting the inner ends of said radial passages to said discharge ducts, and said pitot tubes further respectively having circumferentially rearwardly extending passages connecting said inlets to the outer ends of said radial passages; and e. said inlets being different radial distances from the axis of the rotary casing to deliver fluid to said discharge ducts at different pressures.
Claim 5
Dependent Claim
180 words
In a multiple outlet pitot pump, the combination of: a. a rotary casing containing a pumping chamber; b. means for delivering a fluid to be pumped to the pumping chamber in said rotary casing; c. at least two discharge ducts generally coaxial with said rotary casing; d. at least two pitot tubes in and extending radially of said rotary casing, said pitot tubes respectively having adjacent their outer ends inlets in the pumping chamber facing in a direction opposite to the direction of rotation of said rotary casing, said pitot tubes respectively having radial passages and having adjacent their inner ends outlets respectively connecting the inner ends of said radial passages to said discharge ducts, and said pitot tubes further respectively having circumferentially rearwardly extending passages connecting said inlets to the outer ends of said radial passages; e. said inlets being different radial distances from the axis of the rotary casing to deliver fluid to said discharge ducts at different pressures; and f. said inlets being of different sizes to deliver fluid to said discharge ducts at different flow rates.
Claim 6
Dependent Claim
180 words
In a multiple outlet pitot pump, the combination of: a. a rotary casing containing a pumping chamber; b. means for delivering a fluid to be pumped to the pumping chamber in said rotary casing; c. at least two discharge ducts generally coaxial with said rotary casing; d. at least two pitot tubes in and extending radially of said rotary casing, said pitot tubes respectively having adjacent their outer ends inlets in the pumping chamber facing in a direction opposite to the direction of rotation of said rotary casing, said pitot tubes respectively having radial passages and having adjacent their inner ends outlets respectively connecting the inner ends of said radial passages to said discharge ducts, and said pitot tubes further respectively having circumferentially rearwardly extending passages connecting said inlets to the outer ends of said radial passages; e. said inlets being different radial distances from the axis of the rotary casing to deliver fluid to said discharge ducts at different pressures; and f. said inlets being of different sizes to deliver fluid to said discharge ducts at different flow rates.
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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) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |