Patent US3747533A successfully refreshed from Google Patents.
US3747533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Short trajectory missile
Assignee: Rheinmetall Air Defence AG
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Filing: 1971-11-23
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Granted: 1973-07-24
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Expires: 1991-11-23
Abstract
Abstract Short trajectory missile comprising a missile body and a missile head separating during flight. A part of the missile head such as the front end thereof is formed of a material capable of melting due to the friction of air resistance.
Inventors
- 👤 R Rossmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:05
CPC Classifications
F; F42; F42B; F42B10/00; F42B10/32; F42B10/48; F42B10/52
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
186 words
A short trajectory training missile comprising: a missile body; a missile head separably attached to the forward end of said missile boDy; said attached missile body and missile head having an exterior shape to produce external ballistic characteristics within the range of desired utilization identical to those of a corresponding actual missile; said missile having means for causing said missile head to separate from said missile body upon passage of said missile from said range of utilization, thereby substantially altering the ballistic characteristics of said missile, and for imparting a rapid braking of the trajectory of said missile; said means comprising a hollow space on the interior of said missile head, and a forward end of said missile head closing said hollow space, said forward end being formed of a material capable of being melted through by the friction of air resistance upon the passage of said missile from said range of utilization, whereby said hollow space is subjected to an instantaneous air pressure increase, and said missile head being formed of a material capable of bursting under the force of such interior air pressure increase.
Claim 2
Dependent Claim
186 words
A short trajectory training missile comprising: a missile body; a missile head separably attached to the forward end of said missile boDy; said attached missile body and missile head having an exterior shape to produce external ballistic characteristics within the range of desired utilization identical to those of a corresponding actual missile; said missile having means for causing said missile head to separate from said missile body upon passage of said missile from said range of utilization, thereby substantially altering the ballistic characteristics of said missile, and for imparting a rapid braking of the trajectory of said missile; said means comprising a hollow space on the interior of said missile head, and a forward end of said missile head closing said hollow space, said forward end being formed of a material capable of being melted through by the friction of air resistance upon the passage of said missile from said range of utilization, whereby said hollow space is subjected to an instantaneous air pressure increase, and said missile head being formed of a material capable of bursting under the force of such interior air pressure increase.
Claim 3
Dependent Claim
100 words
A missile is claimed in claim 1, further comprising an axial channel extending into said missile body from the forward end thereof, said missile head extending into said axial channel, said hollow space communicating with said axial channel and at least one radial hole extending outwardly through said missile body from said axial channel to the exterior of said missile, whereby when said forward end of said missile head melts, air passes through said hollow space, inJo said axial channel, and outwardly through said at least one radial hole, thereby creating increased rapid braking of the trajectory of said missile.
Claim 4
Dependent Claim
26 words
A missile as claimed in claim 2, wherein said at least one radial hole comprises a plurality of radial holes symmetrically spaced around said missile body.
Claim 5
Dependent Claim
26 words
A missile as claimed in claim 2, wherein said at least one radial hole comprises a pluralIty of radial holes asymmetrically spaced around said missile body.
Claim 6
Dependent Claim
23 words
A missile as claimed in claim 2, wherein said at least one radial hole comprises four radial holes spaced around said missile body.
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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |