US4151780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for recoilless firing of a missile
Assignee: Saab Bofors AB
•
Filing: 1977-05-16
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Granted: 1979-05-01
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Expires: 1997-05-16
Abstract
Abstract A device providing for the recoilless firing of a missile from a launching tube and comprising a gas generator surrounding a rear portion of the tube, with a plurality of apertures formed in the tube and positioned to allow high pressure gas to pass from the gas generator into an area behind the missile to provide a sufficient launch force.
Inventors
- 👤 Claes R. Andersson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:21
CPC Classifications
F; F41; F41A; F41A1/00; F41A1/08; F41A21/00; F41A21/12; F41A21/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
128 words
A launch assembly for providing recoilless firing of a missile-like device, and comprising: a hollow launch tube surrounding and supporting said missile positioned therein, said launch tube including a ring shaped rear end portion of substantially constant diameter which is open at opposite ends and extending beyond a rear edge surface of said missile to form an open-ended empty chamber behind said missile; a gas generating assembly surrounding and attached to an outer surface of said rear end portion and capable of providing high pressure gas adjacent said outer surface; and means for directing said high pressure gas radially inwardly from said gas generating assembly through a wall of said rear end portion and into said empty chamber to provide a force for recoilless launching of said missile.
Claim 2
Dependent Claim
128 words
A launch assembly for providing recoilless firing of a missile-like device, and comprising: a hollow launch tube surrounding and supporting said missile positioned therein, said launch tube including a ring shaped rear end portion of substantially constant diameter which is open at opposite ends and extending beyond a rear edge surface of said missile to form an open-ended empty chamber behind said missile; a gas generating assembly surrounding and attached to an outer surface of said rear end portion and capable of providing high pressure gas adjacent said outer surface; and means for directing said high pressure gas radially inwardly from said gas generating assembly through a wall of said rear end portion and into said empty chamber to provide a force for recoilless launching of said missile.
Claim 3
Dependent Claim
15 words
A device according to claim 1, wherein said launch assembly comprises a cylindrically-shaped, tubular member.
Claim 4
Dependent Claim
38 words
A device according to claim 1, wherein said directing means comprises a plurality of apertures extending radially through a wall of said launch assembly to provide a flow path between said gas generating assembly and said empty chamber.
Claim 5
Dependent Claim
28 words
A device according to claim 3, wherein each of said apertures has a longitudinal axis extending therethrough which is perpendicular to said longitudinal axis of said launch assembly.
Claim 6
Dependent Claim
27 words
A device according to claim 1, wherein said gas generating assembly comprises an annularly-shaped member circumferentially surrounding said outer surface of said launch assembly and attached thereto.
Claim 7
Dependent Claim
34 words
A device according to claim 5, wherein said directing means comprises a plurality of apertures extending radially through a wall of said launch assembly, with said apertures being circumferentially spaced about said launch assembly.
Claim 8
Dependent Claim
52 words
A device according to claim 5, wherein said gas generating assembly includes at least one powder charge positioned in a tube extending parallel to a longitudinal axis of said launch assembly; said gas generating assembly further including a priming charge with a passageway extending between said priming charge and said powder charge.
Claim 9
Dependent Claim
39 words
A device according to claim 7, wherein a plurality of powder charges are each positioned in a separate tube, with said tubes extending parallel to said longitudinal axis and circumferentially spaced about said outer surface of said launch assembly.
References Cited (Backward Citations)
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US3011406A
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US3610093A
Cited
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US3298278A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |