US3781898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spiral antenna with dielectric cover
Assignee: Individual
•
Filing: 1972-07-03
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Granted: 1973-12-25
•
Expires: 1992-07-03
Abstract
Abstract A radar antenna and method of constructing the same, the antenna having a cup-like support base, a printed antenna circuit on a thin flexible dielectric blank, and an impervious cover, the antenna being constructed by stretching the dielectric blank across the open end of the support using a jig having means to engage a plurality of radially projecting tabs on the dielectric blank and drawing the tabs down against the side of the support to which they are secured before being severed from the jig, and covering the dielectric blank with the impervious cover to hermetically seal the printed antenna circuit from adverse environmental conditions.
Inventors
- 👤 A Holloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:24
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/36; H01Q1/38; H01Q1/42; H01Q9/00; H01Q9/04; H01Q9/16; H01Q9/26; H01Q9/27
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
42 words
An antenna comprising a support base and a thin, flexible dielectric blank having a spiral antenna circuit thereon and having further a plurality of integral tabs, said blank being stretched over said support base and secured thereto by said plurality of tabs.
Claim 2
Dependent Claim
42 words
An antenna comprising a support base and a thin, flexible dielectric blank having a spiral antenna circuit thereon and having further a plurality of integral tabs, said blank being stretched over said support base and secured thereto by said plurality of tabs.
Claim 3
Dependent Claim
18 words
The antenna of claim 1 comprising further a cover on the support base which covers the antenna circuit.
Claim 4
Dependent Claim
39 words
The antenna of claim 2 wherein said cover comprises an impervious dielectric blank having a plurality of tabs, said cover being stretched over said antenna circuit and over said support base and secured thereto by said plurality of tabs.
Claim 5
Dependent Claim
69 words
An antenna comprising: a cup-like support base having an open end and a cylindrical side, and a thin, flexible dielectric antenna blank having a spiral antenna circuit printed thereon and a plurality of radially projecting integral tabs, said blank being stretched across the open end of the support base and secured thereto by the plurality of radially projecting tabs which are fastened to the side of the support base.
Claim 6
Dependent Claim
69 words
An antenna comprising: a cup-like support base having an open end and a cylindrical side, and a thin, flexible dielectric antenna blank having a spiral antenna circuit printed thereon and a plurality of radially projecting integral tabs, said blank being stretched across the open end of the support base and secured thereto by the plurality of radially projecting tabs which are fastened to the side of the support base.
Claim 7
Dependent Claim
18 words
The antenna of claim 4 comprising further a cover on said support base which covers said antenna circuit.
Claim 8
Dependent Claim
40 words
The antenna of claim 5 wherein said cover comprises an impervious dielectric antenna blank having a plurality of tabs, said cover being stretched over said antenna circuit and over said support base and secured thereto by said plurality of tabs.
Claim 9
Dependent Claim
30 words
The antenna of claim 6 wherein said thin dielectric blank on which said antenna circuit is printed is air pervious to relieve pressure differences on either side of the blank.
Claim 10
Dependent Claim
35 words
The antenna of claim 1 wherein said cylindrical side adjacent said open end is chamfered with a plurality of grooves to insure that the tabs are fastened securely to the side of the support base.
Claim 11
Dependent Claim
14 words
The antenna of claim 8 wherein said tabs are fastened with an epoxy adhesive.
Claim 12
Dependent Claim
39 words
An antenna comprising a support base and a thin, flexible dielectric blank having a spiral antenna circuit thereon and having further a peripheral overlap, said blank being stretched over said support base and secured thereto by said peripheral overlap.
Claim 13
Dependent Claim
39 words
An antenna comprising a support base and a thin, flexible dielectric blank having a spiral antenna circuit thereon and having further a peripheral overlap, said blank being stretched over said support base and secured thereto by said peripheral overlap.
Claim 14
Dependent Claim
50 words
The antenna of claim 10 comprising further a cover on the support base which covers the antenna circuit, wherein said cover comprises an impervious dielectric blank having a peripheral overlap, said cover being stretched over said antenna circuit and over said support base and secured thereto by said peripheral overlap.
Claim 15
Dependent Claim
29 words
The antenna of claim 11 wherein said dielectric blank on which said antenna circuit is printed is air pervious to relieve pressure differences on either side of the blank.
Claim 16
Dependent Claim
83 words
An antenna comprising: a support base; a dielectric blank having an antenna circuit thereon and having further a plurality of integral tabs, said blank being stretched over said support base and secured thereto by said plurality of tabs; and a cover on the support base which covers the antenna circuit, said cover comprising an impervious dielectric blank having a plurality of tabs, said cover being stretched over said antenna circuit and over said support base and secured thereto by said plurality of tabs.
Claim 17
Dependent Claim
83 words
An antenna comprising: a support base; a dielectric blank having an antenna circuit thereon and having further a plurality of integral tabs, said blank being stretched over said support base and secured thereto by said plurality of tabs; and a cover on the support base which covers the antenna circuit, said cover comprising an impervious dielectric blank having a plurality of tabs, said cover being stretched over said antenna circuit and over said support base and secured thereto by said plurality of tabs.
Claim 18
Dependent Claim
73 words
An antenna comprising: a support base; a dielectric blank having an antenna circuit thereon and having further a peripheral overlap, said blank being stretched over said support base and secured thereto by said peripheral overlap; and a cover on the support base which covers the antenna circuit, said cover comprising an impervious dielectric blank having a peripheral overlap, said cover being stretched over said support base and secured thereto by said peripheral overlap.
Claim 19
Dependent Claim
73 words
An antenna comprising: a support base; a dielectric blank having an antenna circuit thereon and having further a peripheral overlap, said blank being stretched over said support base and secured thereto by said peripheral overlap; and a cover on the support base which covers the antenna circuit, said cover comprising an impervious dielectric blank having a peripheral overlap, said cover being stretched over said support base and secured thereto by said peripheral overlap.
Claim 20
Dependent Claim
35 words
The antenna of claim 14 wherein said dielectric blank on which said antenna circuit is printed is air pervious to relieve pressure differences on either side of the blank, and is displaced from said cover.
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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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |