US4055104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire piercing munition
Assignee: McDonnell Douglas Corp
•
Filing: 1976-03-29
•
Granted: 1977-10-25
•
Expires: 1996-03-29
Abstract
Abstract A munition designed to be emplaced in concrete or other paved surfaces which is particularly destructive to pneumatic tires.
Inventors
- 👤 Irving B. Osofsky
- 👤 Hugh C. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:37
CPC Classifications
F; F41; F41H; F41H11/00; F41H11/08; E; E01; E01F; E01F13/00; E01F13/12; F42; F42B; F42B12/00; F42B12/02; F42B12/04; F42B12/08; F42B12/36; Y; Y10; Y10S; Y10S102/00; Y10S102/703
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
89 words
A tire piercing munition for emplacement in concrete paving comprising: a forward section having a sharp, hard, high strength point, said forward section of sufficient mass to be driven into and below the surface of said concrete paving when delivered with sufficient velocity or force, and an aft section attached to said forward section comprising a smooth flexible shaft adapted to protrude above said concrete paving when the forward section has been emplaced in said paving, said shaft having a stiffness and cross-section sufficient to penetrate a pneumatic tire.
Claim 2
Dependent Claim
89 words
A tire piercing munition for emplacement in concrete paving comprising: a forward section having a sharp, hard, high strength point, said forward section of sufficient mass to be driven into and below the surface of said concrete paving when delivered with sufficient velocity or force, and an aft section attached to said forward section comprising a smooth flexible shaft adapted to protrude above said concrete paving when the forward section has been emplaced in said paving, said shaft having a stiffness and cross-section sufficient to penetrate a pneumatic tire.
Claim 3
Dependent Claim
30 words
The munition of claim 1 wherein said aft section includes a coiled spring portion to increase the flexibility of said aft section and increase its resistance to destruction by bending.
Claim 4
Dependent Claim
21 words
The munition of claim 1 wherein the aft section includes an easily removable aerodynamic means to stabilize the munition in flight.
Claim 5
Dependent Claim
16 words
The munition of claim 3 wherein said aerodynamic means includes fins attached to the aft section.
Claim 6
Dependent Claim
20 words
The munition of claim 3 wherein the stabilization means includes a flared collar surrounding and attached to said aft section.
Claim 7
Dependent Claim
30 words
The munition of claim 1 including rotatable attachment means connecting said aft section to said forward section whereby the aft section can rotate axially with respect to the forward section.
Claim 8
Dependent Claim
24 words
The munition of claim 1 wherein the aft section has a sharp point on the portion of said section protruding above the paved surface.
Claim 9
Dependent Claim
26 words
The munition of claim 1 wherein the forward section is in part cylindrical and has a sharp point constructed in the shape of a tangent ogive.
Claim 10
Dependent Claim
119 words
A tire piercing munition for emplacement in concrete paving comprising: a relatively heavy cylindrical forward section with a sharp, hard, high strength point in the shape of a tangent ogive, said section having sufficient mass to be driven into and below the surface of said concrete paving when delivered with sufficient velocity or force, a relatively light aft section attached to said forward section, said aft section comprising a smooth flexible shaft adapted to protrude above the surface of said paving when the forward section is below the surface of the paving, said shaft having a length, stiffness and cross-section sufficient to penetrate pneumatic tires, and frangible fins attached to said shaft to aerodynamically stabilize the munition in flight.
Claim 11
Dependent Claim
119 words
A tire piercing munition for emplacement in concrete paving comprising: a relatively heavy cylindrical forward section with a sharp, hard, high strength point in the shape of a tangent ogive, said section having sufficient mass to be driven into and below the surface of said concrete paving when delivered with sufficient velocity or force, a relatively light aft section attached to said forward section, said aft section comprising a smooth flexible shaft adapted to protrude above the surface of said paving when the forward section is below the surface of the paving, said shaft having a length, stiffness and cross-section sufficient to penetrate pneumatic tires, and frangible fins attached to said shaft to aerodynamically stabilize the munition in flight.
Claim 12
Dependent Claim
108 words
A tire piercing munition for emplacement in concrete paving comprising: a forward section with a sharp, hard, high strength point, said section of sufficient mass to be driven into and below the surface of said concrete paving when delivered with sufficient velocity or force, an aft section attached to said forward section comprising a smooth flexible shaft adapted to protrude above the surface of said paving when the forward section is below the surface of the paving, said shaft having a length stiffness and cross-section sufficient to penetrate pneumatic tires, and an easily removable flare attached to and surrounding said shaft to aerodynamically stabilize the munition in flight.
Claim 13
Dependent Claim
108 words
A tire piercing munition for emplacement in concrete paving comprising: a forward section with a sharp, hard, high strength point, said section of sufficient mass to be driven into and below the surface of said concrete paving when delivered with sufficient velocity or force, an aft section attached to said forward section comprising a smooth flexible shaft adapted to protrude above the surface of said paving when the forward section is below the surface of the paving, said shaft having a length stiffness and cross-section sufficient to penetrate pneumatic tires, and an easily removable flare attached to and surrounding said shaft to aerodynamically stabilize the munition in flight.
References Cited (Backward Citations)
US1464192A
Cited
FR784754A
Cited
DE683550C
Cited
FR861452A
Cited
US2353386A
Cited
US2346713A
Cited
US3292879A
Cited
FR1539955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |