US3924038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fragment suppression configuration
Assignee: United States Department of the Air Force
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Filing: 1974-06-12
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Granted: 1975-12-02
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Expires: 1994-06-12
Abstract
Abstract A lightweight fragmentation suppression or ballistic shieldprotective system including a blanket portion composed of at least two layers of ballistic nylon felt interposed with an inner lamination or ply and enclosed within a ballistic nylon cloth envelope. A prime protective-surface or layer composed of a ceramic or tile assembly, incorporating a plurality of individual, slightly spaced tiles each mounted with its face side bonded to an overlapping double-layer glass cloth and its rear side covered with a separate metal back plate, is bonded with the said metal back plate side and overlapping portions of the glass cloth against the face side of the blanket.
Inventors
- 👤 Edward H Mcardle
- 👤 Ralph John Millidge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:13
CPC Classifications
B; B32; B32B; B32B3/00; B32B3/02; B32B3/04; F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0414; B32B3/10; B32B3/12; F41H5/0492; B32B2307/00; B32B2307/70; B32B2307/718; B32B2571/00; B32B2571/02; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/166; Y10T428/24; Y10T428/24149; Y10T428/31504; Y10T428/31725; Y10T428/31728; Y10T428/31732
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
248 words
A LIGHTWEIGHT PROJECTILE SUPPRESSION/ BALLISTIC SHIELD FOR PROTECTING PERSONNEL AND EQUIPMENT, AND PARKED AIRCRAFT AND OOTHER VEHICLES FROM EXPLODING FRAGMENTS AND OTHER PROJECTILES BEING FIRED, COMPRISING, A FIRST, RELATIVELY SOFT AND BASE-SUPPORTING, SECONDARY PROTECTIVE ELEMENT COMPOSED OF A BALLISTIC BLANKET HAVING AT LEAST TWO RELATIVELY ENLARGED AND UNBONDED LAYERS OF A BALLISTIC NYLON FELT MATERIAL PROVIDING A PRIMARY RESILIENT, AND AUXILIARY KINETIC ENERGY-ABSORBING AND PRINCIPAL CUSHIONING SUPPORT MEANS, A RELATIVELY NARROW, LAMINATION NYLON CLOTH LAYER INTERPOSED BETWEEN, AND THEREBY PROVIDING A PARTIAL SUPPORTING AND SEPARATING SURFACE BETWEEN THE SAID BALLISTIC NYLON FELT LAYERS, AND BALLISTIC NYLON CLOTH BACK AND FACE SIDE PORTIONS CONSTITUTING AN INTEGRAL PART OF SAID BALLISTIC BLANKET AND BEING IN RESPECTIVE CONTACTING RELATION TO AND THEREBY PROVIDING FOR THE COMPLETE AND TOTAL SUPPORT TO SAID NYLON FELT LAYERS, WHEN TAKEN IN CONCERT WITH THE PARTIAL SUPPORT BEING GIVEN THERETO BY SAID INTERPOSING NYLON CLOTH LAMINATION LAYER, TO THUS POSITIVELY ENABLE AND ENSURE THE UNBONDED CONFIGURATION OF SAID NYLON FELT LAYERS, AND A SECOND, RELATIVELY HARD AND BRITTLE, PRIMARY PROTECTIVE AND KINETIC ENERGY-ABSORBING ELEMENT INCORPORATING A PRINCIPAL FRAGMENTATION ANDOTHER PROJECTILE-PENETRATION RESISTANT SURFACE MEANS COMPRISED OF A PLURALITY OF RELATIVELY SMALL AND REGULARLYSPACED CERAMIC OR TILE ELEMENTS ADHESIVE BONDED TO THE CENTRAL PORTION OF THE FACE SAID PORTION OF SAID BLANKET AND BEING SHATTERABLE ON THE IMPACT THEREWITH WITH A CERTAIN PREDETERMINED FORCE OF FRAGMENTS AND OTHER PROJECTILES OF EXPLODING DEVICES FOR THUS ABSORBING A SIGNIFICANT PORTION. IF NOT ALL, OF THE KINETIC ENERGY BEING PRODUCED THEREBY.
Claim 2
Dependent Claim
248 words
A LIGHTWEIGHT PROJECTILE SUPPRESSION/ BALLISTIC SHIELD FOR PROTECTING PERSONNEL AND EQUIPMENT, AND PARKED AIRCRAFT AND OOTHER VEHICLES FROM EXPLODING FRAGMENTS AND OTHER PROJECTILES BEING FIRED, COMPRISING, A FIRST, RELATIVELY SOFT AND BASE-SUPPORTING, SECONDARY PROTECTIVE ELEMENT COMPOSED OF A BALLISTIC BLANKET HAVING AT LEAST TWO RELATIVELY ENLARGED AND UNBONDED LAYERS OF A BALLISTIC NYLON FELT MATERIAL PROVIDING A PRIMARY RESILIENT, AND AUXILIARY KINETIC ENERGY-ABSORBING AND PRINCIPAL CUSHIONING SUPPORT MEANS, A RELATIVELY NARROW, LAMINATION NYLON CLOTH LAYER INTERPOSED BETWEEN, AND THEREBY PROVIDING A PARTIAL SUPPORTING AND SEPARATING SURFACE BETWEEN THE SAID BALLISTIC NYLON FELT LAYERS, AND BALLISTIC NYLON CLOTH BACK AND FACE SIDE PORTIONS CONSTITUTING AN INTEGRAL PART OF SAID BALLISTIC BLANKET AND BEING IN RESPECTIVE CONTACTING RELATION TO AND THEREBY PROVIDING FOR THE COMPLETE AND TOTAL SUPPORT TO SAID NYLON FELT LAYERS, WHEN TAKEN IN CONCERT WITH THE PARTIAL SUPPORT BEING GIVEN THERETO BY SAID INTERPOSING NYLON CLOTH LAMINATION LAYER, TO THUS POSITIVELY ENABLE AND ENSURE THE UNBONDED CONFIGURATION OF SAID NYLON FELT LAYERS, AND A SECOND, RELATIVELY HARD AND BRITTLE, PRIMARY PROTECTIVE AND KINETIC ENERGY-ABSORBING ELEMENT INCORPORATING A PRINCIPAL FRAGMENTATION ANDOTHER PROJECTILE-PENETRATION RESISTANT SURFACE MEANS COMPRISED OF A PLURALITY OF RELATIVELY SMALL AND REGULARLYSPACED CERAMIC OR TILE ELEMENTS ADHESIVE BONDED TO THE CENTRAL PORTION OF THE FACE SAID PORTION OF SAID BLANKET AND BEING SHATTERABLE ON THE IMPACT THEREWITH WITH A CERTAIN PREDETERMINED FORCE OF FRAGMENTS AND OTHER PROJECTILES OF EXPLODING DEVICES FOR THUS ABSORBING A SIGNIFICANT PORTION. IF NOT ALL, OF THE KINETIC ENERGY BEING PRODUCED THEREBY.
Claim 3
Dependent Claim
90 words
In a lightweight projectile suppression/ ballistic shield as in claim 1, and a spacer element disposed in contacting and supporting relation, and providing a predetermined and supplementary kinetic energy-absorbing space between said alternately-disposed nylon felt layers and the said plurality of ceramic or tile elements constituting said principal fragmentation and other projectile-penetration resistant surface means; said spacer element further providing reinforcement and thus an increased stability to said nylon felt layers, and ensuring a supplementary cushioning means between said nylon felt layers and said plurality of ceramic or tile elements.
Claim 4
Dependent Claim
121 words
In a lightweight projectile suppression/ ballistic shield as in claim 1, said nylon cloth back and face side portions of said blanket incorporating a common, integral bottom end-blanket portion and overlapping, attached upper blanket end-portioNs collectively forming a ballistic envelope completely enclosing, substantially integrating, and therby reinforcing and forming said alternately disposed nylon felt and nylon cloth lamination layers into a separate subassembly both facilitating its fabrication and increasing its inherent strength and resistance to fragment and other projectile penetration, as well as providing an improved and more stable supporting structure for the adhesive bonding on the said face side portion of said blanket of the said plurality of ceramic or tile elements comprising said second, relatively hard, primary protective element.
Claim 5
Dependent Claim
49 words
In a lightweight projectile suppression/ ballistic shield as in claim 1; and a relatively enlarged, single, unitary, resilient, double-layer glass cloth-support having adhesive means incorporated on one surface thereof for the bonding thereto in a regular pattern all of the said plurality of relatively small ceramic or tile elements.
Claim 6
Dependent Claim
103 words
In a lightweight projectile suppression/ ballistic shield as in claim 4, wherein said plurality of ceramic or tile elements are positioned on said resilient, double-layer glass cloth-support with slightly spaced relation therebetween on all sides thereof; and said double-layer glass cloth-support incorporating a layer of resinous adhesive material of an articulated configuration along all of the spaces provided between the said plurality of ceramic or tile elements to thereby provide a positive built-in recoil action within the said second, relatively hard and brittle, primary protective element and thus improve its inherent resistance and kinetic energy-absorbing capability to fragments and other projectiles impacting thereagainst.
Claim 7
Dependent Claim
50 words
In a lightweight projectile suppression/ballistic shield as in claim 5, wherein each of said plurality of ceramic or tile elements incorporates a separate, magnesium-lithium back plate element adhesive bonded both to the rear of a respective ceramic or tile element and to the said face side portion of said blanket.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |