Patent US4793137A successfully refreshed from Google Patents.
US4793137A
Expired / Lapsed
US
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Control system
Assignee: Airship Industries UK Ltd
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Filing: 1986-12-12
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Granted: 1988-12-27
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Expires: 2006-12-12
Abstract
Abstract A control system for airships and the like that incorporates optically encoded control signals and a compressed fluid power source to power a remote control station to decrease the susceptibility of the control system to uninterruption or disablement due to electromagnetic interference. The compressed fluid power source provides means of driving an electrical generator at a remote location to power the electrical portion of the control system at the remote location in addition to providing primary power for movement of the controlled devices.
Inventors
- 👤 Jeffrey R. Munk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:13
CPC Classifications
B; B64; B64C; B64C13/00; B64C13/24; B64C13/38
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
174 words
A control system in which control signals are transmitted from a control station to effect control of a device at a controlled station, the system comprising at the control station; a source of compressed fluid; a source of optical control signals; non-electrically conductive piping by which pressurized fluid from said source of compressed fluid is conveyed from the control station to the controlled station; an optical fiber conductor over which said optical control signals are transmitted from the control station to the controlled station; at the controlled station, a motor driven by the pressurized fluid received from the control station over said piping and operative to drive an associated generator providing electrical power at the controlled station; a decoder energized by electrical power from said generator and operative to convert said optical control signals into electrical control signals; and a control device energized by electrical power from said generator and responsive to said electrical control signals from said decoder to control an actuator which effects said control of said device at the controlled station.
Claim 2
Dependent Claim
174 words
A control system in which control signals are transmitted from a control station to effect control of a device at a controlled station, the system comprising at the control station; a source of compressed fluid; a source of optical control signals; non-electrically conductive piping by which pressurized fluid from said source of compressed fluid is conveyed from the control station to the controlled station; an optical fiber conductor over which said optical control signals are transmitted from the control station to the controlled station; at the controlled station, a motor driven by the pressurized fluid received from the control station over said piping and operative to drive an associated generator providing electrical power at the controlled station; a decoder energized by electrical power from said generator and operative to convert said optical control signals into electrical control signals; and a control device energized by electrical power from said generator and responsive to said electrical control signals from said decoder to control an actuator which effects said control of said device at the controlled station.
Claim 3
Dependent Claim
28 words
A system as in claim 1, wherein said actuator at the controlled station is operated in accordance with said electrical control signals by electrical power from said generator.
Claim 4
Dependent Claim
38 words
A system as in claim 1, wherein the actuator at the controlled station is operated in accordance with said electrical control signals by the pressurized fluid supplied from the control station to the controlled station over said piping.
Claim 5
Dependent Claim
12 words
A system as in claim 1, wherein said pressurized fluid is air.
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) | 1991-12-27 | 1992-06-27 | 1992-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-27 | 1996-06-27 | 1996-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-27 | 2000-06-27 | 2000-12-27 | $7700.00 | Window Closed / Lapsed |