US3154014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for accelerating gases and solids
Assignee: General Dynamics Corp
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Filing: 1961-10-27
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Granted: 1964-10-27
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Expires: 1981-10-27
Abstract
No abstract record available.
Inventors
- 👤 Brian B Dunne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:44
CPC Classifications
F; F42; F42B; F42B1/00; H; H05; H05H; H05H1/00; H05H1/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A PISTON ASSEMBLY ATTACHED TO A PISTON ROD FOR BEING RECIPROCATED IN A CYLINDER COMPRISING AT LEAST TWO BODY MEMBERS HAVING A DIAMETER LESS THAN THE INSIDE DIAMETER OF THE CYLINDER WHEN THE PISTON ASSEMBLY AND CYLINDER ARE AT ENVIRONMENTAL TEMPERATURE, PACKING RINGS CARRIED BY THE PISTON ASSEMBLY IN CONTACT WITH THE WALL OF THE CYLINDER, SAID BODY MEMBERS BEING FORMED OF A PLASTIC MATERIAL HAVING A HIGHER DEGREE OF THERMAL EXPANSION THAN THE MATERIAL OF THE CYLINDER, SAID BODY MEMBERS BEING ADAPTED TO EXPAND INTO ENGAGEMENT WITH THE WALL OF THE CYLINDER IN RESPONSE TO AN INCREASE IN THE OPERATING TEMPERATURE. ACCELERATED IN A HIGH EXPLOSIVE, PRESHOCKING THE HIGH EXPLOSIVE, AND PASSING AT LEAST TWO SEPARATE DETONATION FRONTS THROUGH SAID PRESHOCKED HIGH EXPLOSIVE IN A DIRECTION TOWARD SAID MATTER AND AT AN ANGLE OF APPROXIMATELY 90 DEGREES RELATIVE TO EACH OTHER WHEREBY A MACH WAVE IS
Claim 2
Dependent Claim
147 words
A PISTON ASSEMBLY ATTACHED TO A PISTON ROD FOR BEING RECIPROCATED IN A CYLINDER COMPRISING AT LEAST TWO BODY MEMBERS HAVING A DIAMETER LESS THAN THE INSIDE DIAMETER OF THE CYLINDER WHEN THE PISTON ASSEMBLY AND CYLINDER ARE AT ENVIRONMENTAL TEMPERATURE, PACKING RINGS CARRIED BY THE PISTON ASSEMBLY IN CONTACT WITH THE WALL OF THE CYLINDER, SAID BODY MEMBERS BEING FORMED OF A PLASTIC MATERIAL HAVING A HIGHER DEGREE OF THERMAL EXPANSION THAN THE MATERIAL OF THE CYLINDER, SAID BODY MEMBERS BEING ADAPTED TO EXPAND INTO ENGAGEMENT WITH THE WALL OF THE CYLINDER IN RESPONSE TO AN INCREASE IN THE OPERATING TEMPERATURE. ACCELERATED IN A HIGH EXPLOSIVE, PRESHOCKING THE HIGH EXPLOSIVE, AND PASSING AT LEAST TWO SEPARATE DETONATION FRONTS THROUGH SAID PRESHOCKED HIGH EXPLOSIVE IN A DIRECTION TOWARD SAID MATTER AND AT AN ANGLE OF APPROXIMATELY 90 DEGREES RELATIVE TO EACH OTHER WHEREBY A MACH WAVE IS
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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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |