Patent US3335637A successfully refreshed from Google Patents.
US3335637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projectile propelled by friction drag of high velocity plasma
Assignee: Individual
•
Filing: 1965-12-23
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Granted: 1967-08-15
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Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 Fay E Null
- 👤 Raymond K Vermillion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:03
CPC Classifications
F; F41; F41B; F41B6/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN A PLASMA PROPELLED, HYPERVELOCITY PROJECTILE, THE COMBINATION OF A LONG, HIGH DENSITY COLUMN OF PLASMA IN PARALLEL FLOW, A PROJECTILE HAVING AN OPENING THERETHROUGH AND COMPRISED OF VERY THIN WALLS WITH SMALL ANGLE FRONT EDGES SO AS TO BE PROPELLED BY FRICTION DRAG RATHER THAN PRESSURE DRAG BY SAID COLUMN OF PLASMA, THE SPACING BETWEEN WALLS OF SAID PROJECTILE PREVENTING OVERLAP OF BOUNDARY LAYERS, A LAUNCH TUBE THAT ALIGNS SAID PROJECTILE WHILE THE PLASMA FLOWS THROUGH AND AROUND IT, AND COLLIMATING VANES IN SAID LAUNCH TUBE UPSTREAM OF SAID PROJECTILE TO PREVENT CRUSHING LATERAL FORCES DUE TO ANY RESIDUAL ANGLE OF INCIDENCE IN SAID PLASMA FLOW.
Claim 2
Dependent Claim
107 words
IN A PLASMA PROPELLED, HYPERVELOCITY PROJECTILE, THE COMBINATION OF A LONG, HIGH DENSITY COLUMN OF PLASMA IN PARALLEL FLOW, A PROJECTILE HAVING AN OPENING THERETHROUGH AND COMPRISED OF VERY THIN WALLS WITH SMALL ANGLE FRONT EDGES SO AS TO BE PROPELLED BY FRICTION DRAG RATHER THAN PRESSURE DRAG BY SAID COLUMN OF PLASMA, THE SPACING BETWEEN WALLS OF SAID PROJECTILE PREVENTING OVERLAP OF BOUNDARY LAYERS, A LAUNCH TUBE THAT ALIGNS SAID PROJECTILE WHILE THE PLASMA FLOWS THROUGH AND AROUND IT, AND COLLIMATING VANES IN SAID LAUNCH TUBE UPSTREAM OF SAID PROJECTILE TO PREVENT CRUSHING LATERAL FORCES DUE TO ANY RESIDUAL ANGLE OF INCIDENCE IN SAID PLASMA FLOW.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |