Patent US3964696A successfully refreshed from Google Patents.
US3964696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling the spin rate of tube launched rockets
Assignee: United States Department of the Navy
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Filing: 1974-10-30
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Granted: 1976-06-22
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Expires: 1994-10-30
Abstract
Abstract The spin rate of a rocket missile is controlled by bevelling the inside ofhe leading edge of the missile fins. Altering the bevel angle controls the rate of spin. The spin rate is also controlled by sweeping back the leading edges of the fins.
Inventors
- 👤 Casimir T. Orzechowski
- 👤 Nat Seiden
- 👤 Anthony Mycka, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:45
CPC Classifications
F; F42; F42B; F42B10/00; F42B10/02; F42B10/14; F42B10/16; F42B10/26; F42B10/28; F42B10/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
67 words
Means for improving the ballistic accuracy of a missile comprising: a set of fins located around the body of a missile, said fins being curved in the radial direction of the missile and being formed with a bevel along the concave side of the leading edge of the fin, the leading edge of said fin also being formed with a sweep-back angle along the entire leading edge.
Claim 2
Dependent Claim
67 words
Means for improving the ballistic accuracy of a missile comprising: a set of fins located around the body of a missile, said fins being curved in the radial direction of the missile and being formed with a bevel along the concave side of the leading edge of the fin, the leading edge of said fin also being formed with a sweep-back angle along the entire leading edge.
Claim 3
Dependent Claim
14 words
Means as set forth in claim 1, wherein the sweep-back angle is roughly 45°.
Claim 4
Dependent Claim
17 words
Means as in claim 1, wherein the bevel angle lies roughly in the 5° to 45° range.
Claim 5
Dependent Claim
12 words
Means as in claim 3, wherein the bevel angle is roughly 22°.
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) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |