Patent US3986394A successfully refreshed from Google Patents.
US3986394A
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Method of testing air target fuzing systems
Assignee: United States Department of the Navy
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Filing: 1975-10-09
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Granted: 1976-10-19
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Expires: 1995-10-09
Abstract
Abstract A method of testing air target fuzing systems by moving a simulated targetast stationarily mounted fuzes and fuzed warheads. A simulated target is fired from a large gun past one or more fuzes and/or fuzed warheads and the encounter between the simulated target and the fuzes is recorded on film and magnetic tape to provide a permanent record.
Inventors
- 👤 William D. Greenlees
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:58
CPC Classifications
F; F42; F42C; F42C21/00; F42C13/00; F42C13/04
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
54 words
A method of testing air target fuzing systems comprising the steps of, first stationarily mounting at least one fuzing device to be tested, next firing a simulated target past said fuzing device, and then recording the reaction between said fuzing device and said simulated target when said simulated target is encountered by said fuze.
Claim 2
Independent Claim
54 words
A method of testing air target fuzing systems comprising the steps of, first stationarily mounting at least one fuzing device to be tested, next firing a simulated target past said fuzing device, and then recording the reaction between said fuzing device and said simulated target when said simulated target is encountered by said fuze.
Claim 3
Dependent Claim
36 words
A method of testing air target fuzing systems as set forth in claim 1 wherein said simulated target and said fuzing device have a closing velocity between 3000 feet per second and 6000 feet per second.
Claim 4
Dependent Claim
25 words
A method of testing air target fuzing systems as set forth in claim 1 wherein said simulated target is fired from a suitable Naval gun.
Claim 5
Dependent Claim
33 words
A method of testing air target fuzing systems as set forth in claim 1 wherein said simulated target is provided with a rocket motor for providing increased closing velocity for said simulated target.
Claim 6
Dependent Claim
55 words
A method of testing air target fuzing systems as set forth in claim 1 wherein a plurality of fuzing devices to be tested are deployed in a pattern within encountering range of a flight path of a simulated target whereby a plurality of fuzing devices can be simultaneously tested by firing a single simulated target.
Claim 7
Dependent Claim
46 words
A method of testing air target fuzing systems as set forth in claim 1 wherein the reaction between said fuzing device and said simulated target when said simulated target is encountered by said fuze is recorded on film by cameras and on magnetic tape by recorders.
Claim 8
Dependent Claim
37 words
A method of testing air target fuzing systems as set forth in claim 1 wherein said simulated target is tracked by a radar to confirm that said simulated target presents an adequate target for said fuzing device.
Claim 9
Dependent Claim
45 words
A method of testing air target fuzing systems as set forth in claim 1 wherein said at least one fuzing device is mounted on a tower and said simulated target is fired from a gun and passes said tower at a height above said tower.
Claim 10
Dependent Claim
31 words
A method of testing air target fuzing systems as set forth in claim 1 wherein said simulated target is provided with a reflective device to enhance detection by said fuzing device.
Claim 11
Dependent Claim
22 words
A method of testing air target fuzing systems as set forth in claim 9 wherein said reflective device is a Luneburg lens.
Claim 12
Independent Claim
75 words
A system for testing proximity fuzes comprising, means for supporting a proximity fuze in a test position, a simulated target, means for firing said simulated target past said fuze along a predetermined path within the field of sensitivity of said fuze and at a velocity which approximates an in-service target-fuze closing velocity, and time correlated means for measuring and recording the performance of said fuze in response to its in-passing encounter with said simulated target.
Claim 13
Independent Claim
75 words
A system for testing proximity fuzes comprising, means for supporting a proximity fuze in a test position, a simulated target, means for firing said simulated target past said fuze along a predetermined path within the field of sensitivity of said fuze and at a velocity which approximates an in-service target-fuze closing velocity, and time correlated means for measuring and recording the performance of said fuze in response to its in-passing encounter with said simulated target.
Claim 14
Dependent Claim
20 words
A system as in claim 11 wherein said simulated target is a gun-fired shell supported lens of a Luneberg type.
Claim 15
Dependent Claim
58 words
A system as in claim 11 wherein said fuze has an in-service velocity of Vp, said target has an in-service velocity of Vt, said target and fuze have an in-service closing velocity of Vc = Vt + Vp, and said simulated target has a velocity Vt = Vc where said test fuze has the velocity Vp = 0.
Claim 16
Dependent Claim
21 words
A system as in claim 13 wherein the velocity of said simulated target ranges between 3000 to 6000 feet per second.
Claim 17
Dependent Claim
84 words
A system as in claim 11 wherein said time correlated means comprises at last one camera to photograph said encounter and at least one magnetic recorder connected to at least one component of the fuze to measure its performance, and wherein film in said camera and tape in said recorder have markings thereon to time correlte the occurrences of the same events recorded on both said film and tape and to show the time separation between the occurrences of events recorded separately on each.
References Cited (Backward Citations)
US2977590A
Cited
US3719077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |