Patent US3489087A successfully refreshed from Google Patents.
US3489087A
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Nonmechanical variable orifice shock absorber
Assignee: Lockheed Martin Corp
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Filing: 1965-07-09
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Granted: 1970-01-13
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Expires: 1985-07-09
Abstract
No abstract record available.
Inventors
- 👤 Laurence R Soderberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:06
CPC Classifications
F; F42; F42B; F42B10/00; F42B10/32; F42B10/48; F16; F16F; F16F9/00; F16F9/32; F16F9/50; F16F9/512
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A SHOCK ABSORBER FOR USE IN A HIGH ENERGY EARTH PENETRATING DEVICE, COMPRISING: AN EARTH PENETRATING DEVICE; A LONGITUDINAL CAVITY IN SAID DEVICE; A WARHEAD SLIDABLE IN SAID CAVITY; A NON-NEWTONIAN FLUID IN SAID CAVITY FORWARDLY OF SAID WARHEAD; AN ORIFICE THROUGH THE WALL OF SAID DEVICE COMMUNICATING WITH THE FORWARD END OF SAID CAVITY; AND A BLOWOUT PLUG IN SAID ORIFICE ADAPTED TO BE FORCED OUT OF SAID ORIFICE AFTER EACH DEVICE STRIKES THE TARGET, CAUSING THE INERTIA OF SAID WARHEAD TO EXERT A PREDETERMINED FORCE ON SAID FLUID AND SAID PLUG, SAID FLUID THEN BEING FORCED THROUGH SAID ORIFICE TO PROVIDE A SELF-REGULATING VARIABLE ORIFICE EFFECT TO DAMPEN THE SHOCK FORCE TRANSMITTED TO SAID WARHEAD AS SAID WARHEAD MOVES DOWNWARDLY IN SAID CAVITY AND SAID DEVICE MOVES DOWNWARDLY THROUGH THE GROUND, THEREBY PROTECTING SAID WARHEAD FROM HIGH DECELERATION FORCES
Claim 2
Dependent Claim
141 words
A SHOCK ABSORBER FOR USE IN A HIGH ENERGY EARTH PENETRATING DEVICE, COMPRISING: AN EARTH PENETRATING DEVICE; A LONGITUDINAL CAVITY IN SAID DEVICE; A WARHEAD SLIDABLE IN SAID CAVITY; A NON-NEWTONIAN FLUID IN SAID CAVITY FORWARDLY OF SAID WARHEAD; AN ORIFICE THROUGH THE WALL OF SAID DEVICE COMMUNICATING WITH THE FORWARD END OF SAID CAVITY; AND A BLOWOUT PLUG IN SAID ORIFICE ADAPTED TO BE FORCED OUT OF SAID ORIFICE AFTER EACH DEVICE STRIKES THE TARGET, CAUSING THE INERTIA OF SAID WARHEAD TO EXERT A PREDETERMINED FORCE ON SAID FLUID AND SAID PLUG, SAID FLUID THEN BEING FORCED THROUGH SAID ORIFICE TO PROVIDE A SELF-REGULATING VARIABLE ORIFICE EFFECT TO DAMPEN THE SHOCK FORCE TRANSMITTED TO SAID WARHEAD AS SAID WARHEAD MOVES DOWNWARDLY IN SAID CAVITY AND SAID DEVICE MOVES DOWNWARDLY THROUGH THE GROUND, THEREBY PROTECTING SAID WARHEAD FROM HIGH DECELERATION FORCES
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |