US4593637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination frangible nose cap EMI shield
Assignee: United States Department of the Navy
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Filing: 1984-06-04
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Granted: 1986-06-10
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Expires: 2004-06-04
Abstract
Abstract An improved frangible nose cap is presented which in addition to providingechanical protection to the torpedo nose also provides electromagnetic interference (EMI) protection to the torpedo electronics systems. The improved nose cap is made up of a frangible material which may be impregnated, or coated, by methods well known in the prior art, with a conductive layer that can be electrically connected to the torpedo's electronic circuit ground for the EMI shielding.
Inventors
- 👤 Harvey J. Klee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:54
CPC Classifications
F; F42; F42C; F42C19/00; F42C19/04; F42B; F42B19/00; F42B19/005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
61 words
An improved frangible nose cap for a torpedo containing grounded electronics within its body which further comprises: means for electrically shielding the electronics contained within the torpedo body from electromagnetic interference, said means made a part of the frangible nose cap; and means for electrically connecting the shielding means to the body of the torpedo and to the electronics system's ground.
Claim 2
Dependent Claim
61 words
An improved frangible nose cap for a torpedo containing grounded electronics within its body which further comprises: means for electrically shielding the electronics contained within the torpedo body from electromagnetic interference, said means made a part of the frangible nose cap; and means for electrically connecting the shielding means to the body of the torpedo and to the electronics system's ground.
Claim 3
Dependent Claim
28 words
An improved frangible nose cap according to claim 1 wherein the means for shielding further comprises: a conductive material deposited on the surface of said frangible nose cap.
Claim 4
Dependent Claim
28 words
An improved frangible nose cap according to claim 1 wherein the means for shielding further comprises: a conducting material impregnated into the material of the frangible nose cap.
Claim 5
Dependent Claim
26 words
An improved frangible nose cap according to claim 1 wherein the means for shielding further comprises: an electrically conducting metallic material for the frangible nose cap.
Claim 6
Dependent Claim
59 words
An improved frangible nose cap for a torpedo which contains grounded electronic circuitry within its body comprising: means for electrically shielding the electronics contained within the torpedo body, the means comprising a part of the frangible nose cap; and means for electrically connecting the shielding means to the ground of the electronics system in the body of the torpedo.
Claim 7
Dependent Claim
59 words
An improved frangible nose cap for a torpedo which contains grounded electronic circuitry within its body comprising: means for electrically shielding the electronics contained within the torpedo body, the means comprising a part of the frangible nose cap; and means for electrically connecting the shielding means to the ground of the electronics system in the body of the torpedo.
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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) | 1989-06-09 | 1989-12-09 | 1990-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-09 | 1993-12-09 | 1994-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-09 | 1997-12-09 | 1998-06-10 | $7700.00 | Window Closed / Lapsed |