Patent US5081467A successfully refreshed from Google Patents.
US5081467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap-in antenna element for window shade-type radar
Assignee: Grumman Corp
•
Filing: 1990-09-11
•
Granted: 1992-01-14
•
Expires: 2010-09-11
Abstract
Abstract A transmit/receive module and RF elements are constructed as a sub-assembly. Notches are formed along the edges of two parallel spaced antenna planes. These notches engage mating notches formed in the element of the sub-assembly thereby retaining the sub-assembly by "snap-in" action. Conversely, the sub-assembly may be quickly disassembled by unsnapping the engagement of the sub-assembly and antenna plane.
Inventors
- 👤 Peter K. Homer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:45
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1235; H01Q1/08; H01Q1/088
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
86 words
A snap-on antenna element assembly comprising: an antenna plane in the form of a strip having notches transversely formed along its edges; an antenna element formed of sheet material and having notches transversely formed therein for removably engaging the antenna plane notches; a drop line integrally connected at one end thereof to the element, an opposite end of the drop line being connected to electronic circuitry; wherein the antenna plane strip includes narrow sections joined at a median enlarged section in which the notches are formed.
Claim 2
Dependent Claim
86 words
A snap-on antenna element assembly comprising: an antenna plane in the form of a strip having notches transversely formed along its edges; an antenna element formed of sheet material and having notches transversely formed therein for removably engaging the antenna plane notches; a drop line integrally connected at one end thereof to the element, an opposite end of the drop line being connected to electronic circuitry; wherein the antenna plane strip includes narrow sections joined at a median enlarged section in which the notches are formed.
Claim 3
Dependent Claim
46 words
The assembly set forth in claim 1 wherein the antenna element includes: a straight central section for contacting the surface of the antenna plane strip; and enlarged portions at opposite sides of the straight central section, wherein the notches are formed inwardly of the enlarged portions.
Claim 4
Dependent Claim
93 words
An antenna element assembly for a three-layer radar membrane including two spaced antenna planes and an interposing ground plane, the assembly comprising: an electronic module fastened to the ground plate; two drop lines connected at first ends thereof to the module; each antenna plane being formed as a strip having notches transversely formed along its edges; two separate antenna elements each formed of sheet material and having notches transversely formed therein for removably engaging the antenna plane notches; wherein second ends of the drop lines are integrally connected to a respective antenna element.
Claim 5
Dependent Claim
93 words
An antenna element assembly for a three-layer radar membrane including two spaced antenna planes and an interposing ground plane, the assembly comprising: an electronic module fastened to the ground plate; two drop lines connected at first ends thereof to the module; each antenna plane being formed as a strip having notches transversely formed along its edges; two separate antenna elements each formed of sheet material and having notches transversely formed therein for removably engaging the antenna plane notches; wherein second ends of the drop lines are integrally connected to a respective antenna element.
Claim 6
Dependent Claim
27 words
The assembly set forth in claim 3 wherein each antenna plane strip includes narrow sections joined at a median enlarged section in which the notches are formed.
Claim 7
Dependent Claim
46 words
The assembly set forth in claim 4 wherein each antenna element includes a straight central section for contacting the surface of the antenna plane strip; and enlarged portions at opposite sides of the straight central section, wherein the notches are formed inwardly of the enlarged portions.
References Cited (Backward Citations)
US3383693A
Cited
US4573056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-01-13 | 1995-07-15 | 1996-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-13 | 1999-07-15 | 2000-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-13 | 2003-07-15 | 2004-01-14 | $7700.00 | Window Closed / Lapsed |