Patent US5270707A successfully refreshed from Google Patents.
US5270707A
Expired / Lapsed
US
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Process and apparatus for the avoidance of bird impacts on airplanes
Assignee: Hella GmbH and Co KGaA
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Filing: 1991-09-12
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Granted: 1993-12-14
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Expires: 2011-09-12
Abstract
Abstract In a process and an apparatus for the avoidance of bird impacts on airplanes by means of at least one light-flashes generating light source on an airplane, for which the frequency of the generated light flashes is varied through at least one cycle, the flash frequency is varied dependent upon the speed and/or the altitude and/or the acceleration of the airplane in order to provide an optimal flash frequency range for all take-off and landing phases and at the same time to be independent of a load and the type of airplane.
Inventors
- 👤 Peter Schulte
- 👤 Siegfried Schmees
- 👤 Werner Lepper
- 👤 Dieter Nolte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:54
CPC Classifications
G; G08; G08G; G08G5/00; G08G5/20; G08G5/21; B; B64; B64D; B64D47/00; B64D47/02; B64D47/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
A process for the avoidance of bird impacts on airplanes by means of at least one light source on an airplane generating light flashes at a flash frequency which is automatically varied through at least one cycle in dependence upon at least one of the speed, the altitude and the acceleration of the airplane, wherein the data for the flash frequency are stored in memory as a family of characteristic curves which are functions of at least two of said speed, altitude and acceleration wherein a variation in the landing and take-off phases can be selectively actuated.
Claim 2
Dependent Claim
97 words
A process for the avoidance of bird impacts on airplanes by means of at least one light source on an airplane generating light flashes at a flash frequency which is automatically varied through at least one cycle in dependence upon at least one of the speed, the altitude and the acceleration of the airplane, wherein the data for the flash frequency are stored in memory as a family of characteristic curves which are functions of at least two of said speed, altitude and acceleration wherein a variation in the landing and take-off phases can be selectively actuated.
Claim 3
Dependent Claim
30 words
A process as in claim 1 wherein data for the flash frequency in dependence upon at least one of speed, altitude and acceleration of the airplane are stored in memory.
Claim 4
Dependent Claim
28 words
A process as in claim 1 wherein the light flash generation is automatically turned off in response to the airplane reaching a predetermined altitude and a predetermined speed.
Claim 5
Dependent Claim
24 words
A process as in claim 3 wherein the light flash generation can be switched on either manually or automatically in each phase of flight.
Claim 6
Dependent Claim
28 words
A process as in claim 1 wherein the flash frequency is a function of at least two of the speed, the altitude and the acceleration of the airplane.
References Cited (Backward Citations)
US3183480A
Cited
US4384269A
Cited
US4346430A
Cited
US4475102A
Cited
US4477796A
Cited
EP0236267A2
Cited
US4736907A
Cited
US4964331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-12-13 | 1997-06-14 | 1997-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-13 | 2001-06-14 | 2001-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-13 | 2005-06-14 | 2005-12-14 | $7700.00 | Window Closed / Lapsed |