Patent US4021811A successfully refreshed from Google Patents.
US4021811A
Expired / Lapsed
US
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Quad antenna support
Assignee: Individual
•
Filing: 1975-08-13
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Granted: 1977-05-03
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Expires: 1995-08-13
Abstract
Abstract A quad antenna for short-wave or ultra-short wave range employs at least one radiator element and an associated reflector element. Each element is fixed in position by a respective holding member. The holding members are mounted at a point in the center of the base plane of a cube formed by the corner points of the elements.
Inventors
- 👤 Erich Bastian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:10
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
81 words
Quad antenna for short-wave or ultrashort-wave range, including VHF and UHF, comprising at least one radiating element and an associated reflector element disposed to form a cube, and element holder means including a plurality of element holders for retaining the radiating and reflector elements in their positions, said element holders being mounted to converge in a single mounting point located in the center of the base plane of the cube formed by the corner points of the radiating and reflector elements.
Claim 2
Dependent Claim
81 words
Quad antenna for short-wave or ultrashort-wave range, including VHF and UHF, comprising at least one radiating element and an associated reflector element disposed to form a cube, and element holder means including a plurality of element holders for retaining the radiating and reflector elements in their positions, said element holders being mounted to converge in a single mounting point located in the center of the base plane of the cube formed by the corner points of the radiating and reflector elements.
Claim 3
Dependent Claim
35 words
Quad antenna according to claim 1, characterized in that the mounting point for the element holders is fashioned as a mounting head made of a metal and/or a synthetic resin and rotatable on a mast.
Claim 4
Dependent Claim
38 words
Quad antenna according to claim 2, characterized in that the mounting head is fashioned with plug-in holes for inserting the element holders in the basal plane so as to extend in two planes upwardly under a steep angle.
Claim 5
Dependent Claim
28 words
Quad antenna according to claim 1, further including at least one director element supported by said element holder means on the side of said radiator opposite said reflector.
References Cited (Backward Citations)
US1820643A
Cited
US3532315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-02 | 1980-11-01 | 1981-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-02 | 1984-11-01 | 1985-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-02 | 1988-11-01 | 1989-05-03 | $7700.00 | Window Closed / Lapsed |