Patent US3521007A successfully refreshed from Google Patents.
Patent US3860927A successfully refreshed from Google Patents.
US3860927A
Expired / Lapsed
US
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Dielectric reflector for electric waves
Assignee: Tokyo Keiki Inc
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Filing: 1973-07-11
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Granted: 1975-01-14
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Expires: 1993-07-11
Abstract
Abstract A weatherproof dielectric reflector for electric waves having a spherical dielectric lens, an annular electric wave reflector of predetermined width disposed on the spherical surface of the spherical dielectric lens at a position about a horizontal plane passing the central point of the spherical dielectric lens or a point vertically spaced apart from the central point of the spherical dielectric lens, a dish-shaped electric wave reflector of predetermined area disposed on the spherical surface of the spherical dielectric lens at a position about a vertical line passing the central point of the spherical dielectric lens and extending downwardly thereof, a covering for the reflectors and lens, and a support therefor.
Inventors
- 👤 Hiroshi Ota
- 👤 Kazumi Mizutani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:55
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/23
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
135 words
A dielectric reflector for electric waves for use with a life-saving outfit comprising a spherical dielectric lens, an annular electric wave reflector having a predetermined width and disposed on the spherical surface of the spherical dielectric lens at a position about a horizontal plane passing the central point of the spherical dielectric lens, a dish-shaped electric wave reflector having a predetermined area and disposed on the spherical surface of the spherical dielectric lens at a position about a vertical line passing through the central point of the spherical dielectric lens and extending downwardly thereof, a protective film of an electric wave transparent material covering the spherical dielectric lens together with the annular electric wave reflector and the dish-shaped electric wave reflector, and a support extending downwardly from the position of the dish-shaped electric wave reflector.
Claim 2
Dependent Claim
135 words
A dielectric reflector for electric waves for use with a life-saving outfit comprising a spherical dielectric lens, an annular electric wave reflector having a predetermined width and disposed on the spherical surface of the spherical dielectric lens at a position about a horizontal plane passing the central point of the spherical dielectric lens, a dish-shaped electric wave reflector having a predetermined area and disposed on the spherical surface of the spherical dielectric lens at a position about a vertical line passing through the central point of the spherical dielectric lens and extending downwardly thereof, a protective film of an electric wave transparent material covering the spherical dielectric lens together with the annular electric wave reflector and the dish-shaped electric wave reflector, and a support extending downwardly from the position of the dish-shaped electric wave reflector.
Claim 3
Dependent Claim
141 words
A dielectric reflector for electric waves for use with a life-saving outfit comprising a spherical dielectric lens, an annular electric wave reflector having a predetermined width and disposed on the spherical surface of the spherical dielectric lens at a position about a horizontal plane passing a point vertically spaced apart from the central point of the spherical dielectric lens, a dish-shaped electric wave reflector having a predetermined area and disposed on the spherical surface of the spherical dielectric lens at a position about a vertical line passing through the central point of the spherical dielectric lens and extending downwardly thereof, a protective film of an electric wave transparent material covering the spherical dielectric lens together with the annular electric wave reflector and the dish-shaped electric wave reflector, and a support extending downwardly from the position of the dish-shaped electric wave reflector.
Claim 4
Dependent Claim
141 words
A dielectric reflector for electric waves for use with a life-saving outfit comprising a spherical dielectric lens, an annular electric wave reflector having a predetermined width and disposed on the spherical surface of the spherical dielectric lens at a position about a horizontal plane passing a point vertically spaced apart from the central point of the spherical dielectric lens, a dish-shaped electric wave reflector having a predetermined area and disposed on the spherical surface of the spherical dielectric lens at a position about a vertical line passing through the central point of the spherical dielectric lens and extending downwardly thereof, a protective film of an electric wave transparent material covering the spherical dielectric lens together with the annular electric wave reflector and the dish-shaped electric wave reflector, and a support extending downwardly from the position of the dish-shaped electric wave reflector.
Claim 5
Dependent Claim
20 words
A dielectric reflector for electric waves according to claim 1, wherein the spherical dielectric lens has a Luneberg lens construction.
Claim 6
Dependent Claim
20 words
A dielectric reflector for electric waves according to claim 2, wherein the spherical dielectric lens has a Luneberg lens construction.
References Cited (Backward Citations)
US2455469A
Cited
US2580921A
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US2814038A
Cited
US3206749A
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US3334345A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |