US3662975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary electrical generating system for jet aircraft
Assignee: Individual
•
Filing: 1970-09-21
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Granted: 1972-05-16
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Expires: 1990-09-21
Abstract
Abstract An auxiliary electrical generating system for jet aircraft wherein compressed air is withdrawn from a jet engine and used to operate a pneumatic turbine which in turn drives a generator. An ancillary gas source may be included for supplying compressed gas to the turbine in the event of engine failure. This abstract is neither intended to define the invention of the application which, of course, is measured by the claims, nor is it intended to be limiting as to scope of the invention in any way.
Inventors
- 👤 Robert E Driskill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:32
CPC Classifications
B; B64; B64D; B64D41/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
153 words
An auxiliary electrical power generating system for jet aircraft comprising: a jet engine, means for obtaining compressed gas from said jet engine, conduit means for conducting said compressed gas from said jet engine to a pneumatic turbine, an ancillary compressed gas source, conduit means for conducting compressed gas from said ancillary gas source to said pneumatic turbine, said turbine being rotated by compressed gas from one of said jet engines and said auxiliary gas source flowing across said turbine from a high pressure area to a low pressure area, blocking means normally preventing the flow of gas from said auxiliary gas source to said turbine when said engine is operating, means for automatically opening said blocking means to permit said flow if said engine should fail, an electrical generator adapted to be driven by said turbine, and means for transmitting the electrical power generated to one or more electrical appliances aboard the aircraft.
Claim 2
Dependent Claim
153 words
An auxiliary electrical power generating system for jet aircraft comprising: a jet engine, means for obtaining compressed gas from said jet engine, conduit means for conducting said compressed gas from said jet engine to a pneumatic turbine, an ancillary compressed gas source, conduit means for conducting compressed gas from said ancillary gas source to said pneumatic turbine, said turbine being rotated by compressed gas from one of said jet engines and said auxiliary gas source flowing across said turbine from a high pressure area to a low pressure area, blocking means normally preventing the flow of gas from said auxiliary gas source to said turbine when said engine is operating, means for automatically opening said blocking means to permit said flow if said engine should fail, an electrical generator adapted to be driven by said turbine, and means for transmitting the electrical power generated to one or more electrical appliances aboard the aircraft.
Claim 3
Dependent Claim
36 words
The system of claim 1 wherein said means for automatically opening said block means includes a switch responsive to output from said generator and a switch responsive to the on-ground or off-ground status of said aircraft.
Claim 4
Dependent Claim
20 words
The system of claim 1 wherein the power from said generator is used for illuminating and powering an attitude indicator.
References Cited (Backward Citations)
US2622390A
Cited
US2706255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |