Patent US4213734A successfully refreshed from Google Patents.
US4213734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine power generator
Assignee: Individual
•
Filing: 1978-07-20
•
Granted: 1980-07-22
•
Expires: 1998-07-20
Abstract
Abstract A reaction-type turbine provided with an output shaft coupled to a power generator, such as an electric generator, and having a plurality of variable-pitch flexible impeller blades, or sails, mounted between the periphery of the output shaft and a concentric tubular shroud rotatable in unison with the output shaft. The pitch of the flexible impeller blades or sails is varied by a centrifugally-actuated pitch controlling unit such that the output shaft has a constant angular velocity irrespective of variations in the velocity of the fluid flowing through the turbine. For actuation by wind, the turbine is mounted on a rotatable platform which is automatically oriented in the direction of the prevalent wind by a servo system controlled by a wind direction detecting device. The mass of air flowing through the turbine is automatically controlled as a function of the wind velocity by an appropriate throttling mechanism controlled by a wind velocity detector. For actuation by water flow, the turbine is mounted such as to be retractable and extendable relative to an appropriate support hull.
Inventors
- 👤 Jerry W. Lagg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:54
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03D7/022; F03D7/0224; F03B; F03B17/00; F03B17/06; F03B17/061; F03D7/0204; F05; F05B; F05B2250/00; F05B2250/50; F05B2250/501; F05B2250/5011; F05B2260/00; F05B2260/70; F05B2260/74; F05B2260/75; F05B2260/77; F05B2270/00; F05B2270/30; F05B2270/32; F05B2270/321; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y02E10/30; Y02E10/70; Y02E10/72
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
157 words
A reaction-type turbine rotatable by fluid flow longitudinally therethrough, said turbine comprising a rotatable output shaft, a rotatable tubular shroud disposed concentric to said output shaft, means rigidly interconnecting said output shaft and said tubular shroud for rotation in unison, and a plurality of flexible impeller blades disposed radially between said output shaft and the interior surface of said tubular shroud, said flexible impeller blades having a leading edge, a trailing edge and a pair of opposed lateral edges, one of said lateral edges being fixedly attached to said output shaft and a portion of the other of said lateral edges proximate said leading edge being fixedly attached to the interior surface of said tubular shroud, and means for controllably uniformly varying the pitch of said impeller blades by displacing the peripheral corner of the trailing edge of said blades such as to place said trailing edge at an angle to the leading edge of said blade.
Claim 2
Dependent Claim
157 words
A reaction-type turbine rotatable by fluid flow longitudinally therethrough, said turbine comprising a rotatable output shaft, a rotatable tubular shroud disposed concentric to said output shaft, means rigidly interconnecting said output shaft and said tubular shroud for rotation in unison, and a plurality of flexible impeller blades disposed radially between said output shaft and the interior surface of said tubular shroud, said flexible impeller blades having a leading edge, a trailing edge and a pair of opposed lateral edges, one of said lateral edges being fixedly attached to said output shaft and a portion of the other of said lateral edges proximate said leading edge being fixedly attached to the interior surface of said tubular shroud, and means for controllably uniformly varying the pitch of said impeller blades by displacing the peripheral corner of the trailing edge of said blades such as to place said trailing edge at an angle to the leading edge of said blade.
Claim 3
Dependent Claim
68 words
The reaction-type turbine of claim 1 wherein said means for controllably varying the pitch of said impeller blades comprises a pitch control ring and means attaching the peripheral corner of said trailing edge to said pitch control ring, said pitch control ring being angularly orientable around the axes of said output shaft and shroud from a first position providing minimum pitch to a second position providing maximum pitch.
Claim 4
Dependent Claim
40 words
The reaction-type turbine of claim 2 wherein said pitch control ring is rotatably angularly displaced from said second position of maximum pitch towards said first position of minimum pitch as a function of angular velocity by means of centrifugal force.
Claim 5
Dependent Claim
51 words
The reaction-type turbine of claim 1 wherein said turbine is mounted on a platform orientable about a substantially vertical axis, and further comprising remotely located wind direction detecting means, and drive means controlled by said wind direction detection means for orienting said platform in the direction of prevalent wind air flow.
Claim 6
Dependent Claim
20 words
The reaction-type turbine of claim 4 further comprising funnel-shaped induction means directing the wind air flow through said tubular shroud.
Claim 7
Dependent Claim
23 words
The reaction-type turbine of claim 4 further comprising remotely located wind velocity detection means for throttling the air flow into said tubular shroud.
Claim 8
Dependent Claim
20 words
The reaction-type turbine of claim 6 further comprising funnel-shaped induction means directing the wind air flow through said tubular shroud.
Claim 9
Dependent Claim
36 words
The reaction-type turbine of claim 6 wherein said wind direction detection means and said wind velocity detection means are mounted on a common base free to orient itself in the direction of prevalent wind air flow.
Claim 10
Dependent Claim
16 words
The reaction-type turbine of claim 1 wherein said output shaft is coupled to an electrical generator.
Claim 11
Dependent Claim
41 words
The reaction-type turbine of claim 1 further comprising a water flotation hull, telescopic support means for said output shaft and means for operating said telescoping support means for extending said turbine into the water or removing said turbine from the water.
Claim 12
Dependent Claim
16 words
The reaction-type turbine of claim 11 wherein a fluid pump is coupled to said output shaft.
Claim 13
Dependent Claim
30 words
The reaction-type turbine of claim 10 further comprising a fluid motor disposed in said hull and actuated by said fluid pump, and an electrical generator coupled to said fluid motor.
References Cited (Backward Citations)
US532595A
Cited
US725829A
Cited
US1186289A
Cited
US1333675A
Cited
US2133853A
Cited
US2374125A
Cited
US2563279A
Cited
US4066911A
Cited
US4159191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-22 | 1984-01-21 | 1984-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-22 | 1988-01-21 | 1988-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-22 | 1992-01-21 | 1992-07-22 | $7700.00 | Window Closed / Lapsed |