US4511901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for connecting and guiding the individual collapsible elements of a rigid, collapsible antenna reflector
Assignee: Dornier System GmbH
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Filing: 1982-07-12
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Granted: 1985-04-16
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Expires: 2002-07-12
Abstract
Abstract This invention relates to an improvement in a collapsible antenna reflector with rigid, collapsible elements for high accuracy of contour, composed of a central panel and collapsible segments mounted thereto by means of joints, the improvement comprising means mounting the individual collapsible segments (5) so that in their collapsed state their contour curvature is equidirectional, with the individual collapsible segments being mounted perpendicularly to the central panel and being arranged from its periphery obliquely to the antenna axis.
Inventors
- 👤 Manfred Westphal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:40
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/14; H01Q15/16; H01Q15/161
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
118 words
A collapsible antenna relfector, comprising a central panel having circular periphery; a plurality of rigid tapered panels each having a lower edge, one end point of the edge being hingedly connected to the periphery of the central panel, for simultaneous rotating and pivoting so as to turn each panel and fold it outwardly from a folded position in what one longitudinal edge of each panel is situated on a cylinder surface; and a plurality of rods, each being hinged with one end to one upper end point on said longitudinal edge of a panel of the plurality of panels, and being hinged with its other end to a mid point of an upper edge of an adjacent panel.
Claim 2
Dependent Claim
118 words
A collapsible antenna relfector, comprising a central panel having circular periphery; a plurality of rigid tapered panels each having a lower edge, one end point of the edge being hingedly connected to the periphery of the central panel, for simultaneous rotating and pivoting so as to turn each panel and fold it outwardly from a folded position in what one longitudinal edge of each panel is situated on a cylinder surface; and a plurality of rods, each being hinged with one end to one upper end point on said longitudinal edge of a panel of the plurality of panels, and being hinged with its other end to a mid point of an upper edge of an adjacent panel.
Claim 3
Dependent Claim
20 words
A collapsible antenna reflector according to claim 1 including stop means fixing the collapsible segments (5) into their final positions.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-15 | 1988-10-15 | 1989-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-15 | 1992-10-15 | 1993-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-15 | 1996-10-15 | 1997-04-16 | $7700.00 | Window Closed / Lapsed |