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US4218684A Expired / Lapsed US ⏱️ 0.0 years remaining

Security cover for trunk and roof mounted antennae

Assignee: Individual
•
Filing: 1979-05-14
•
Granted: 1980-08-19
•
Expires: 1999-05-14
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Abstract

Abstract A security cover consisting of a base pad, base cover, top cover, steel washer, and snap ring, for use on auto or truck mounted antennae.

Inventors

  • 👤 William Northcutt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 07:54
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/40; H01Q1/12; H01Q1/1207; H01Q1/1214

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 328 words
A security cover for an antenna mounted on an automobile comprising: a. a base pad constructed of resilient material; b. a base cover which has a cylindrical section, and a truncated conical section and a swivel section all integrally formed, and a rectangular shoulder at the juncture of the cylindrical section and truncated conical section and a rectangular groove, adjacent to the rectangular shoulder, circumferentially around inside surface of the cylindrical section, and said base cover having a concave, generally spherical surface on the inner side of the swivel section; c. a top cover which has a cylindrical side, a top, an antenna port, and a convex shoulder all integrally formed wherein the antenna port is a circular hole in the top sized to accept an antenna whip and the convex shoulder is adjacent to the open end of the cylindrical side and the convex shoulder is on the outside of the cylindrical side, the convex shoulder being sized and shaped to slideably mate with the generally spherical surface on the inner side of the swivel section of the base cover; d. a resilient bushing, made of resilient material, generally cylindrical in shape with a center bore of sufficient diameter to accept and allow an antenna whip to pass through; e. a metal washer having a center hold of sufficient outside diameter to permit the washer to be slideably inserted into the cylindrical section and bear against the rectangular shoulder; f. a snap ring sized to slideably be inserted into the cylindrical section of the base cover when compressed and to mateably insert into the rectangular groove when allowed to expand, yet after inserting into the rectangular groove the snap ring bears against the washer; g. an adapting stud with a female end threaded to mateably connect with a mounting stud on an antenna body, and said adapting stud having a male end threaded to accept a nut and a bearing surface to bear on a vehicle surface.
Claim 2
Dependent Claim 328 words
A security cover for an antenna mounted on an automobile comprising: a. a base pad constructed of resilient material; b. a base cover which has a cylindrical section, and a truncated conical section and a swivel section all integrally formed, and a rectangular shoulder at the juncture of the cylindrical section and truncated conical section and a rectangular groove, adjacent to the rectangular shoulder, circumferentially around inside surface of the cylindrical section, and said base cover having a concave, generally spherical surface on the inner side of the swivel section; c. a top cover which has a cylindrical side, a top, an antenna port, and a convex shoulder all integrally formed wherein the antenna port is a circular hole in the top sized to accept an antenna whip and the convex shoulder is adjacent to the open end of the cylindrical side and the convex shoulder is on the outside of the cylindrical side, the convex shoulder being sized and shaped to slideably mate with the generally spherical surface on the inner side of the swivel section of the base cover; d. a resilient bushing, made of resilient material, generally cylindrical in shape with a center bore of sufficient diameter to accept and allow an antenna whip to pass through; e. a metal washer having a center hold of sufficient outside diameter to permit the washer to be slideably inserted into the cylindrical section and bear against the rectangular shoulder; f. a snap ring sized to slideably be inserted into the cylindrical section of the base cover when compressed and to mateably insert into the rectangular groove when allowed to expand, yet after inserting into the rectangular groove the snap ring bears against the washer; g. an adapting stud with a female end threaded to mateably connect with a mounting stud on an antenna body, and said adapting stud having a male end threaded to accept a nut and a bearing surface to bear on a vehicle surface.
Claim 3
Dependent Claim 17 words
The invention of claim 1 wherein the base cover and top cover are made of hard plastic.
Claim 4
Dependent Claim 17 words
The invention of claim 1 wherein the snap ring, washer, and adapting nut are made of metal.
Claim 5
Dependent Claim 14 words
The invention of claim 1 wherein the resilient bushing is a coil helical spring.

References Cited (Backward Citations)

US4087819A Cited
US4134121A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-08-19 1984-02-18 1984-08-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-08-19 1988-02-18 1988-08-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-08-19 1992-02-18 1992-08-19 $7700.00 Window Closed / Lapsed

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