US3599747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spherical reflector
Assignee: Individual
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Filing: 1968-12-16
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Granted: 1971-08-17
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Expires: 1988-12-16
Abstract
Abstract A dish-shaped acoustic reflector for use with a sound source, the reflector having a spherical surface for reflecting the desired echoes back toward the sound source in a narrow beam enhancing the strength, stability, and concentration of the received signal, said reflector accepting signals from sound sources over a predetermined angular range and wide frequency range.
Inventors
- 👤 Palle G Hansen
- 👤 William E Batzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:53
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/28; G10K11/20; G10K11/205
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
107 words
A reflector for receiving and returning signals transmitted by a transducer located in a given transmitting medium, the transducer being remotely positioned and distinct from the reflector; said reflector having a concave spherical surface no greater than a hemisphere in contact with said transmitting medium, said surface adapted to return a signal from said transducer; means for dissipating signals received by the reflector having an angle of incidence and an angle of reflection the sum of which angles are greater than a right angle; whereby certain signals received by the reflector will be incident on the spherical surface and be returned to the transducer along parallel paths.
Claim 2
Dependent Claim
107 words
A reflector for receiving and returning signals transmitted by a transducer located in a given transmitting medium, the transducer being remotely positioned and distinct from the reflector; said reflector having a concave spherical surface no greater than a hemisphere in contact with said transmitting medium, said surface adapted to return a signal from said transducer; means for dissipating signals received by the reflector having an angle of incidence and an angle of reflection the sum of which angles are greater than a right angle; whereby certain signals received by the reflector will be incident on the spherical surface and be returned to the transducer along parallel paths.
Claim 3
Dependent Claim
47 words
The reflector of claim 1 wherein: said reflector is provided with a circular aperture extending therethrough; said aperture being said means for dissipating said signals each having an angle of incidence and an angle of reflection the sum of the angles being greater than a right angle.
Claim 4
Dependent Claim
34 words
The reflector of claim 2 wherein: the diameter of said circular aperture is no greater than the base of a right angle cone intersecting the point of tangency of the cone with the reflector.
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |