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US4148033A Expired / Lapsed US ⏱️ 0.0 years remaining

Radar reflector for buoys and other floating objects

Assignee: Individual
•
Filing: 1977-06-20
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Granted: 1979-04-03
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Expires: 1997-06-20
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Abstract

Abstract A radar reflector for buoys and other floating objects comprising six identical corner reflectors circumferentially evenly spaced about the main reflector axis. The axes of symmetry of said six corner reflectors define angles of about 90° with said main reflector axis and the apertures of said corner reflectors are outwardly directed and alternatingly disposed in inverted relation with respect to one another. The three plates of each corner reflector are enlarged up to the intersection lines with the plates of adjacent corner reflectors and to the intersection line, respectively, with an assumed cylinder surface circumscribing the total reflector assembly.

Inventors

  • 👤 Hans E. Speckter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 21:38
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/14; H01Q15/18

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 159 words
A radar reflector of the kind referred to comprising six identical corner reflectors circumferentially evenly arranged about the main reflector axis, said corner reflectors being made of three plates each perpendicularly joined to one another, with the axes of symmetry of said corner reflectors being equally spaced at 60° intervals in the azimuthal plane, assuming a vertical orientation of said main reflector axis, and forming angles of approximately 90° with main reflector axis, the apertures of said corner reflectors being outwardly directed and disposed in inverted relation to one another when advancing in azimuthal direction, two of said plates of each corner reflector being enlarged up to the intersection lines with the plates of adjacent corner reflectors and one of said plates being enlarged approximately up to the intersection line with an assumed cylindrical surface circumscribing the total reflector assembly, where said cylindrical surface passes through intersection points generated by the inner and outer intersection lines of said plates.
Claim 2
Dependent Claim 159 words
A radar reflector of the kind referred to comprising six identical corner reflectors circumferentially evenly arranged about the main reflector axis, said corner reflectors being made of three plates each perpendicularly joined to one another, with the axes of symmetry of said corner reflectors being equally spaced at 60° intervals in the azimuthal plane, assuming a vertical orientation of said main reflector axis, and forming angles of approximately 90° with main reflector axis, the apertures of said corner reflectors being outwardly directed and disposed in inverted relation to one another when advancing in azimuthal direction, two of said plates of each corner reflector being enlarged up to the intersection lines with the plates of adjacent corner reflectors and one of said plates being enlarged approximately up to the intersection line with an assumed cylindrical surface circumscribing the total reflector assembly, where said cylindrical surface passes through intersection points generated by the inner and outer intersection lines of said plates.
Claim 3
Dependent Claim 23 words
A radar reflector according to claim 1 wherein the radar reflector is incorporated into a cylindrical body that closely circumscribes the radar reflector.

References Cited (Backward Citations)

US2310790A Cited
US1384014A Cited
US2405990A Cited
US3010103A Cited
US3451060A Cited
US4028701A Cited
US4037228A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-04-02 1982-10-02 1983-04-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-04-02 1986-10-02 1987-04-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-04-02 1990-10-02 1991-04-03 $7700.00 Window Closed / Lapsed

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