US3998408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote elevated platform
Assignee: United States Department of the Navy
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Filing: 1976-02-19
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Granted: 1976-12-21
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Expires: 1996-02-19
Abstract
Abstract A remote elevated platform (REP) for positioning a payload from an aircraftnd maintaining its position unattended, comprises a lifting body, a payload designed to be suspended from the lifting body, a tether line and a mooring system. The platform is dropped from the aircraft and the lifting body is deployed by opening it up by means of a static line or a barometric device. The mooring system is then released and it starts falling freely but attached to the tether line. The mooring line then strikes the surface and fixes itself in the ground. In a body of water, a float and sea anchor is deployed instead.
Inventors
- 👤 Hamlin A. Caldwell, Jr.
- 👤 Gerald M. Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:54
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/02; B63; B63B; B63B22/00; B63B22/003
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
221 words
A remote elevated platform system for positioning a payload at a high altitude and maintaining the position thereof unattended, which comprises: a housing including a plurality of detachably secured shells; a parafoil being stowed in a first shell of said plurality of shells, said parafoil being flexibly attached to the payload in said first shell; a pressure release switching means being housed in said first shell, said pressure release switching means being energizable by a preselected barometric pressure value; a first spool being housed in said first shell; a first tether line being mounted on said first spool having the first end thereof being connected to the payload; a second shell of said plurality of shells of said housing detachably secured to said first shell, said second shell being connected to the second end of said first tether line; a third shell of said plurality of said shells of said housing detachably secured to said second shell; an impact switching means being housed in said third shell; a second spool being housed in said third shell; a second tether line being mounted on said second spool having the first end thereof being connected to said second shell; and an anchor means being housed in said third shell, said anchor means being connected to the second end of said second tether line.
Claim 2
Dependent Claim
221 words
A remote elevated platform system for positioning a payload at a high altitude and maintaining the position thereof unattended, which comprises: a housing including a plurality of detachably secured shells; a parafoil being stowed in a first shell of said plurality of shells, said parafoil being flexibly attached to the payload in said first shell; a pressure release switching means being housed in said first shell, said pressure release switching means being energizable by a preselected barometric pressure value; a first spool being housed in said first shell; a first tether line being mounted on said first spool having the first end thereof being connected to the payload; a second shell of said plurality of shells of said housing detachably secured to said first shell, said second shell being connected to the second end of said first tether line; a third shell of said plurality of said shells of said housing detachably secured to said second shell; an impact switching means being housed in said third shell; a second spool being housed in said third shell; a second tether line being mounted on said second spool having the first end thereof being connected to said second shell; and an anchor means being housed in said third shell, said anchor means being connected to the second end of said second tether line.
Claim 3
Dependent Claim
37 words
The remote elevated platform system of claim 1 wherein said first shell is being fitted with a ring shroud at the tail end thereof for keeping said first shell along a selected attitude during a descent thereof;
Claim 4
Dependent Claim
26 words
The remote elevated platform system of claim 2 wherein said second shell includes a plurality of flapper valves for flooding said second shell with sea water.
Claim 5
Dependent Claim
39 words
The remote elevated platform system of claim 3 where said second shell further includes a plurality of vents at the top thereof for an easy exit of trapped air while said second shell allowing sea water to enter therein.
Claim 6
Dependent Claim
21 words
The remote elevated platform of claim 4 wherein the inside of said second shell is being lined with a floatable material.
Claim 7
Dependent Claim
25 words
The remote elevated platform of claim 1 wherein said plurality of shells of said housing are detachably secured by using a plurality of explosive bolts.
References Cited (Backward Citations)
US2382442A
Cited
US2470783A
Cited
US2570549A
Cited
US3221656A
Cited
US3282539A
Cited
US3657752A
Cited
US3787013A
Cited
US3921120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-12-21 | 1980-06-21 | 1980-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-21 | 1984-06-21 | 1984-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-21 | 1988-06-21 | 1988-12-21 | $7700.00 | Window Closed / Lapsed |