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Patent US3949406A successfully refreshed from Google Patents.
US3949406A
Expired / Lapsed
US
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Horn for radioelectric antennas
Assignee: Alcatel CIT SA
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Filing: 1975-02-28
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Granted: 1976-04-06
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Expires: 1995-02-28
Abstract
Abstract Radioelectric antennas for hertzian beams with construction simplifying the manufacturing of a horn for such an antenna whose inside surface is corrugated. The horn comprises an outside sheet metal support on the inside of which is installed, one beside another, a great number of rings, having a shape such that two adjacent rings form a corrugation. Such structure enables economical manufacturing and facilitates adapting to various shapes of corrugations in the same horn.
Inventors
- 👤 Marcel Yvard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:30
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/02; H01Q13/0283; H01Q13/0291
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
89 words
A horn for radioelectric antennas comprising an outside sheet metal support having inner and outer surfaces, a plurality of juxtaposed rings extending inwardly into said support at the inner surface thereof, and means assembling said rings to said support, each ring comprising a base portion and a projecting portion, said projecting portion being narrower than the base portion, said rings bearing against one another and against said inner surface of the sheet metal support at said base portions, the projecting portions of adjacent rings defining a corrugation space therebetween.
Claim 2
Dependent Claim
89 words
A horn for radioelectric antennas comprising an outside sheet metal support having inner and outer surfaces, a plurality of juxtaposed rings extending inwardly into said support at the inner surface thereof, and means assembling said rings to said support, each ring comprising a base portion and a projecting portion, said projecting portion being narrower than the base portion, said rings bearing against one another and against said inner surface of the sheet metal support at said base portions, the projecting portions of adjacent rings defining a corrugation space therebetween.
Claim 3
Dependent Claim
15 words
A horn as claimed in claim 1 wherein said rings are identical to one another.
Claim 4
Dependent Claim
27 words
A horn as claimed in claim 1 wherein the inside surface of said support is of stepped configuration, at least two rings being assembled on each step.
Claim 5
Dependent Claim
18 words
A horn as claimed in claim 3 wherein the rings on each step are identical to one another.
Claim 6
Dependent Claim
56 words
A horn as claimed in claim 1 wherein said support includes a plurality of portions each comprising a connecting flange situated in a plane perpendicular to the axis of the horn, said rings including end rings at the opposite ends of the juxtaposed assembly, said end rings including extensions applied endwise against the associated support position.
Claim 7
Dependent Claim
23 words
A horn as claimed in claim 5 wherein said assembling means includes fastening means joining the end rings to the associated support portion.
Claim 8
Dependent Claim
24 words
A horn as claimed in claim 5 wherein said assembling means further comprises additional fastener means joining adjacent connection flanges of successive suport portions.
References Cited (Backward Citations)
SU251026A1
Cited
US3754273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |