Ships – Building – Antifriction surfaces
Patent
1976-10-15
1978-01-17
Blix, Trygve M.
Ships
Building
Antifriction surfaces
180116, B63B 134
Patent
active
040686060
ABSTRACT:
A vehicle including a rigid body is provided and includes a bottom structure defining a plurality, elongated and horizontally downwardly projecting bottom surface members which in turn define downwardly opening channels therebetween. The bottom structure further includes a plurality of elongated horizontal flexible inflatable members disposed and extending along between pairs of adjacent bottom surface members in the aforementioned channels. The body includes structure operative to apply fluid under pressure to the inflatable members to inflate the latter and the inflatable members, when inflated, include portions projecting downwardly below the bottom surface members. The undersurface portions of the inflatable members which project below the bottom surface members include structure defining friction brake surfaces and the vehicle also includes structure operative to downwardly discharge air under pressure below and between the bottom surface member for buoying the vehicle on a cushion of air beneath the bottom structure thereof, the friction brake surfaces of the inflatable members, when the latter are inflated, being projected downwardly below the bottom surface members to an extent greater than the effective height of the air cushion formed beneath the bottom structure whereby the friction brake surfaces may friction brake the vehicle to a stop.
REFERENCES:
patent: 1710869 (1929-04-01), Farrell
patent: 3365018 (1968-01-01), Bliss
patent: 3399644 (1968-09-01), Hunt
patent: 3524517 (1970-08-01), Fleur
patent: 3595336 (1971-07-01), Perez
patent: 3714918 (1973-02-01), Veldhuizen
patent: 3765357 (1973-10-01), Peri
patent: 3903832 (1975-09-01), Ishida
patent: 3908783 (1975-09-01), Joerg et al.
Blix Trygve M.
Goldstein Stuart M.
Jacobson Harvey B.
O#Brien Clarence A.
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