Patent US3680130A successfully refreshed from Google Patents.
US3680130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Re-entry vehicle nose cone with antenna
Assignee: United States Department of the Army
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Filing: 1969-11-12
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Granted: 1972-07-25
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Expires: 1989-11-12
Abstract
Abstract Disclosed is a re-entry vehicle in the form of a nose cone body having an electrically conductive outer surface free of discontinuities and incorporating an antenna for exciting the body. The antenna is adjacent the vehicle base where the plasma layer during re-entry is a minimum. The antenna is disclosed as recessed into the base surface of the body.
Inventors
- 👤 Howard S Jones Jr
- 👤 Joseph J Witte
- 👤 Harry K Morlock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:11
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/28; H01Q1/281
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
54 words
A re-entry vehicle comprising a body portion having an outer surface substantially free of surface discontinuities which terminates in a base surface having the shape of a slice of cross-sectional area of said body portion, said base surface including a hemispherical recess and said antenna comprising a top-loaded monopole antenna mounted in said recess.
Claim 2
Dependent Claim
54 words
A re-entry vehicle comprising a body portion having an outer surface substantially free of surface discontinuities which terminates in a base surface having the shape of a slice of cross-sectional area of said body portion, said base surface including a hemispherical recess and said antenna comprising a top-loaded monopole antenna mounted in said recess.
Claim 3
Dependent Claim
86 words
A re-entry vehicle comprising a body portion having an outer surface substantially free of surface discontinuities which terminates in a base surface having the shape of a slice of cross-sectional area of said body portion, an antenna for exciting said body portion recessed in said base surface, said antenna comprising a pair of radiative, resonant, wave guide cavities extending in one direction in the longitudinal axial direction of said body portion and extending in the other direction arcuately about the longitudinal axis of said body portion.
Claim 4
Dependent Claim
86 words
A re-entry vehicle comprising a body portion having an outer surface substantially free of surface discontinuities which terminates in a base surface having the shape of a slice of cross-sectional area of said body portion, an antenna for exciting said body portion recessed in said base surface, said antenna comprising a pair of radiative, resonant, wave guide cavities extending in one direction in the longitudinal axial direction of said body portion and extending in the other direction arcuately about the longitudinal axis of said body portion.
Claim 5
Dependent Claim
120 words
A re-entry vehicle comprising a body portion having an outer surface substantially free of surface discontinuities which terminates in a base surface having the shape of a slice of cross-sectional area of said body portion, a protective radome comprising part of said body portion, an antenna for exciting said body portion being recessed in said base surface and being mounted on said radome and wholly contained beneath the surface of said radome, said antenna comprising a conductive ring having a radially inner side on the inner wall of said radome and a radially outer side embedded in said radome, and including an annular slot in its radially outer side for radiating electromagnetic energy outwardly through a portion of said radome.
Claim 6
Dependent Claim
120 words
A re-entry vehicle comprising a body portion having an outer surface substantially free of surface discontinuities which terminates in a base surface having the shape of a slice of cross-sectional area of said body portion, a protective radome comprising part of said body portion, an antenna for exciting said body portion being recessed in said base surface and being mounted on said radome and wholly contained beneath the surface of said radome, said antenna comprising a conductive ring having a radially inner side on the inner wall of said radome and a radially outer side embedded in said radome, and including an annular slot in its radially outer side for radiating electromagnetic energy outwardly through a portion of said radome.
Claim 7
Dependent Claim
22 words
A re-entry vehicle according to claim 3 including an annular window in said radome surrounding said slot and transparent to microwave energy.
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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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |