US4249184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna arm and method for making the arm
Assignee: Individual
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Filing: 1979-05-07
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Granted: 1981-02-03
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Expires: 1999-05-07
Abstract
Abstract An antenna structure, kit and method for making the structure comprising a generally circular base, a plurality of specially formed pre-stressed similarly shaped and sized arms which may be affixed in a disk array to the base and means, an arm encircling turnbuckel cable arrangement, for stressing the pre-stressed arms into a generally parabolic disk array is disclosed. The ribs are each made of a plurality of layers of resilient material, such as wood, which are bonded together in a bowed pre-stressed shape, which shape when modified by the stressing by the cable to assume a generally parabolic disk.
Inventors
- 👤 James K. Vines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:09
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/14; H01Q15/16; H01Q15/161
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
105 words
A parabolic disk antenna radial arm of the type that is to be used in a parabolic disk antenna, comprising a plurality of elongated normally flat elements of resilent material having smooth upper and lower normally flat surfaces, which are positioned in a flat surface to flat surface array and sandwiched and cemented to one another in an arcuate surface to surface arcuate configuration such that the arm is prestressed into a bowed configuration, said arm having one longitudinal end capable of being received and captivated by a disk antenna base and having its other longitudinal end adapted to receive a disk encircling captivating means.
Claim 2
Dependent Claim
105 words
A parabolic disk antenna radial arm of the type that is to be used in a parabolic disk antenna, comprising a plurality of elongated normally flat elements of resilent material having smooth upper and lower normally flat surfaces, which are positioned in a flat surface to flat surface array and sandwiched and cemented to one another in an arcuate surface to surface arcuate configuration such that the arm is prestressed into a bowed configuration, said arm having one longitudinal end capable of being received and captivated by a disk antenna base and having its other longitudinal end adapted to receive a disk encircling captivating means.
Claim 3
Dependent Claim
19 words
The invention of claim 1 wherein said strips are of wood and are affixed together by a waterproof glue.
Claim 4
Dependent Claim
80 words
The method of making the arm of claim 1 comprising the steps of providing a plurality of elongated flat strips of a normally linear resilient material, positioning these strips into a sandwiched stacked flat surface to flat surface array with affixative sandwiched between the strips in an arcuate arrangement whereby the strips are affixed to one another by said affixative in a stressed bowed configuration, and adapting one longitudinal end of the arm to receive a disk encircling captivating means.
References Cited (Backward Citations)
US1703870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |