Patent DE2513868A1 successfully refreshed from Google Patents.
US3181821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Space craft soft landing system
Assignee: Individual
•
Filing: 1964-06-04
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Granted: 1965-05-04
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Expires: 1984-06-04
Abstract
No abstract record available.
Inventors
- 👤 James E Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:17
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/12; F16F7/125; B; B64; B64G; B64G1/00; B64G1/22; B64G1/62; B64G1/625; B64G1/623
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
IN A SPACECRAFT HAVING A BASE AND ADAPTED TO PERFORM SOFT LANDINGS ON LUNAR AND OTHER TERRESTRIAL SURFACES, SAID LANDINGS TO BE PERFORMED WITH THE SPACECRAFT IN A BASE DOWNWARD ATTITUDE, A LANDING GEAR SYSTEM COMPRISING: (A) A SHROUD EXTENDING CIRCUMFERENTIALLY AROUND BUT SPACED APART FROM THE SPACECRAFT HAVING AN EXTERIOR AND AN INTERIOR SURFACE; (B) A PLURALITY OF RETRACTABLE LANDING LEGS ATTACHED AT ONE END TO AND POSITIONED AROUND THE EXTERIOR SURFACE OF THE SHROUD AND EXTENDABLE TO A LANDING CONFIGURATION IN PREPARATION TO LANDING, EACH OF SAID LEGS HAVING ATTACHED AT THE OTHER END THEREOF A LANDING FOOT; AND (C) A PLURALITY OF ENERGY ABSORBERS POSITIONED IN THE SPACE BETWEEN THE SHROUD AND THE SPACECRAFT ONE END OF WHICH IS ATTACHED TO THE SPACECRAFT AND THE OTHER TO THE SHROUD INTERIOR SURFACE, WHEREBY ENERGY IS ABSORBED BY SAID ENERGY ABSORBERS WHEN THE LANDING FEED COME IN CONTACT WITH A LUNAR OR OTHER TERRESTRIAL SURFACE UPON WHICH A SOFT LANDING IS BEING PERFORMED CAUSING A RELATIVE MOVEMENT OF THE SHROUD WITH RESPECT TO THE SPACECRAFT.
Claim 2
Dependent Claim
176 words
IN A SPACECRAFT HAVING A BASE AND ADAPTED TO PERFORM SOFT LANDINGS ON LUNAR AND OTHER TERRESTRIAL SURFACES, SAID LANDINGS TO BE PERFORMED WITH THE SPACECRAFT IN A BASE DOWNWARD ATTITUDE, A LANDING GEAR SYSTEM COMPRISING: (A) A SHROUD EXTENDING CIRCUMFERENTIALLY AROUND BUT SPACED APART FROM THE SPACECRAFT HAVING AN EXTERIOR AND AN INTERIOR SURFACE; (B) A PLURALITY OF RETRACTABLE LANDING LEGS ATTACHED AT ONE END TO AND POSITIONED AROUND THE EXTERIOR SURFACE OF THE SHROUD AND EXTENDABLE TO A LANDING CONFIGURATION IN PREPARATION TO LANDING, EACH OF SAID LEGS HAVING ATTACHED AT THE OTHER END THEREOF A LANDING FOOT; AND (C) A PLURALITY OF ENERGY ABSORBERS POSITIONED IN THE SPACE BETWEEN THE SHROUD AND THE SPACECRAFT ONE END OF WHICH IS ATTACHED TO THE SPACECRAFT AND THE OTHER TO THE SHROUD INTERIOR SURFACE, WHEREBY ENERGY IS ABSORBED BY SAID ENERGY ABSORBERS WHEN THE LANDING FEED COME IN CONTACT WITH A LUNAR OR OTHER TERRESTRIAL SURFACE UPON WHICH A SOFT LANDING IS BEING PERFORMED CAUSING A RELATIVE MOVEMENT OF THE SHROUD WITH RESPECT TO THE SPACECRAFT.
References Cited (Backward Citations)
DE412318C
Cited
US2391275A
Cited
US2578903A
Cited
US3026972A
Cited
US3146014A
Cited
US3059966A
Cited
US3143321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-03 | 1968-11-02 | 1969-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-03 | 1972-11-02 | 1973-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-03 | 1976-11-02 | 1977-05-04 | $7700.00 | Window Closed / Lapsed |