US3591122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroshoring
Assignee: Individual
•
Filing: 1969-10-01
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Granted: 1971-07-06
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Expires: 1989-10-01
Abstract
Abstract A cargo aircraft pallet having a bottom pressure plate, a sealed compartment filled with hydraulic oil and encompassing the bottom plate, and a cargo-supporting platform floating on top, and thereby supported by the hydraulic oil. The floating platform is movable, under a cargo load, relative to the bottom plate to thereby form a pressure that is evenly transmitted throughout the hydraulic oil over the relatively wide area of the bottom plate to thereby substantially reduce the force applied to the floor of the aircraft.
Inventors
- 👤 Stephen R Mehaffie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:53
CPC Classifications
B; B64; B64D; B64D9/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
235 words
In an aircraft cargo pallet; hydroshoring means for supporting and distributing the force of relatively heavy/dense cargo loads over a relatively wide area and thereby substantially reducing the force applied to the aircraft floor, said means comprising; a bottom, main base support member adapted for positioning in supporting relation on the aircraft floor; hydraulically activated, pressure-transmitting means filled with hydraulic fluid, and encompassing and supported by said bottom, main base support member; and an upper, cargo-supporting platform member resting on the top surface of, and entirely supported in freely floating relation on, the hydraulic fluid contained within said hydraulically activated, pressure-transmitting means to thereby form an evenly distributed pressure resulting from a cargo load emplaced on said upper floating platform member that is applied across the entire surface area of said base, support member with a significantly lowered force; said hydroshoring means including sealing means comprising a resilient seal adapted for application to both of said bottom, base and upper, cargosupporting platform members; and means for clamping said resilient seal in its sealing position to thereby close and seal said hydraulic fluid within said hydraulically activated, pressure-transmitting means; said resilient seal comprising a one-piece compound of rubber, neoprene and the like having minimum stress in compression to thereby offer substantially no additional resistance to the inherent resistance in the application of said hydraulic fluid to a cargo load positioned on said upper, cargo-supporting platform member.
Claim 2
Dependent Claim
235 words
In an aircraft cargo pallet; hydroshoring means for supporting and distributing the force of relatively heavy/dense cargo loads over a relatively wide area and thereby substantially reducing the force applied to the aircraft floor, said means comprising; a bottom, main base support member adapted for positioning in supporting relation on the aircraft floor; hydraulically activated, pressure-transmitting means filled with hydraulic fluid, and encompassing and supported by said bottom, main base support member; and an upper, cargo-supporting platform member resting on the top surface of, and entirely supported in freely floating relation on, the hydraulic fluid contained within said hydraulically activated, pressure-transmitting means to thereby form an evenly distributed pressure resulting from a cargo load emplaced on said upper floating platform member that is applied across the entire surface area of said base, support member with a significantly lowered force; said hydroshoring means including sealing means comprising a resilient seal adapted for application to both of said bottom, base and upper, cargosupporting platform members; and means for clamping said resilient seal in its sealing position to thereby close and seal said hydraulic fluid within said hydraulically activated, pressure-transmitting means; said resilient seal comprising a one-piece compound of rubber, neoprene and the like having minimum stress in compression to thereby offer substantially no additional resistance to the inherent resistance in the application of said hydraulic fluid to a cargo load positioned on said upper, cargo-supporting platform member.
Claim 3
Dependent Claim
88 words
In an aircraft cargo pallet as in claim 1, wherein said bottom base support member includes upright side portions extending in outwardly and overlapping relation to, and thereby preventing lateral movement of, said upper, cargo-supporting platform member; and said resilient seal is clamped with a closed end portion thereof in slightly spaced relation to the said upright side portions of said bottom base support member to thereby provide for a minimum flexure of said seal during the application of a load to said upper, freely floating platform member.
Claim 4
Dependent Claim
93 words
In an aircraft cargo pallet as in claim 1, wherein said resilient seal further consists of an open-ended adhesive material adhered to both of said bottom and upper, floating platform members with a closed end portion thereof disposed in relatively small, spaced-apart relation to upright side portions formed on said bottom base support member to thereby provide for the limited flexure of said seal into a relatively small damping volume provided thereby between said seal and said bottom, base support member-upright side portions and thus preventing contact between said upper and bottom members.
Claim 5
Dependent Claim
59 words
In an aircraft cargo pallet as in claim 1, wherein said upper cargo-supporting platform member comprises a lower plate element in direct contact with, and immediately supported in freely floating relation on said hydraulic fluid; and an upper, extrusion element supported to, and further upwardly of, said lower plate element for directly supporting a relatively heavy/dense cargo load thereon.
Claim 6
Dependent Claim
122 words
In an aircraft cargo pallet as in claim 1, wherein said hydraulically activated, pressure-transmitting means comprises; a sealed chamber positioned over, and encompassing the base member and further being filled with the said hydraulic fluid; said bottom, base support member incorporating a plurality of relatively elongated spaced-apart reinforcing members extending vertically upward from the surface towards said upper, floating platform member, and said upper member similarly incorporating a plurality of relatively short, reinforcing members extending vertically downward towards, and arranged in alternately spaced relation to, said base support member to thereby simultaneously provide reinforcement to both of said members and to prevent said upper, cargo-supporting floating platform member from direct engagement with said bottom, base support member when placed under a load.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |