Patent US3726228A successfully refreshed from Google Patents.
US3726228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Density integrating fuze head
Assignee: United States Department of the Army
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Filing: 1970-11-23
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Granted: 1973-04-10
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Expires: 1990-11-23
Abstract
Abstract A protective shield for an impact fuze that will permit penetration of foliage, rain, and other material without premature explosion. This protective shield is capable of discriminating between the ground and other material while permitting the firing device to retain its high impact sensitivity by providing a mesh like structure for protection against solid objects and drainage holes to protect against fluid build up. The invention described herein may be manufactured, used and licensed by or for the Government for governmental purposes without the payment to us of any royalty thereon.
Inventors
- 👤 W Lohninger
- 👤 J Matt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:26
CPC Classifications
F; F42; F42C; F42C19/00; F42C19/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
An impact sensitive fuze for explosive missiles comprising: a truncated conically shaped body having an axial bore; said body having a plurality of apertures in its base extending transversally of said axial bore and communicating with said bore; means for detonating said missile secured to the base of said conical body; closure means mounted in said bore intermediate said apertures and said detonating means; a plurality of elongated strand shape members mounted in said body and extending transversally across said bore, said strand shape members defining a protective sieve, each of said members being positioned independently of said detonating means, for abutment with confronted objects such that their axial planes normal to the longitudinal axis of said bore are parallel and so that the axial plane parallel to the longitudinal axis of said bore of each of said members subtends an angle of approximately 5* to 45* with the corresponding axial plane of each contiguous member; and wherein said apertures are sufficient to permit escape of air and water such as to prevent the buildup of pressure in said bore capable of activating said detonating means.
Claim 2
Dependent Claim
186 words
An impact sensitive fuze for explosive missiles comprising: a truncated conically shaped body having an axial bore; said body having a plurality of apertures in its base extending transversally of said axial bore and communicating with said bore; means for detonating said missile secured to the base of said conical body; closure means mounted in said bore intermediate said apertures and said detonating means; a plurality of elongated strand shape members mounted in said body and extending transversally across said bore, said strand shape members defining a protective sieve, each of said members being positioned independently of said detonating means, for abutment with confronted objects such that their axial planes normal to the longitudinal axis of said bore are parallel and so that the axial plane parallel to the longitudinal axis of said bore of each of said members subtends an angle of approximately 5* to 45* with the corresponding axial plane of each contiguous member; and wherein said apertures are sufficient to permit escape of air and water such as to prevent the buildup of pressure in said bore capable of activating said detonating means.
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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |