Land vehicles: bodies and tops – Bodies – Seats with body modifications
Patent
1976-10-22
1978-05-30
Reeves, Robert B.
Land vehicles: bodies and tops
Bodies
Seats with body modifications
52222, 296 23C, B63B 706
Patent
active
040914852
ABSTRACT:
A collapsible watertight structure has a pair of essentially rigid opposite end members linked together by a flexible skin or sheet so that the structure may be repeatedly extended and collapsed. Longitudinal beams which are laterally rigid but longitudinally compressible extend between and are secured at their ends to the end members and hold the structure in distended position. Each beam is secured to one of the end members by a universal joint, such as a ball and socket, and is secured to the other end member by a joint which is slidable transversely thereof whereby the end members are placed under chordal distension urging them apart and causing the flexible skin to be distended and stressed between the end members to attain its shape. Flexible cable members embedded or otherwise secured to the flexible sheet and secured to the end members limit the distension and stress imposed by the end members on the flexible sheet. Floatation devices are mounted on each of the longitudinal beams when the device is used as a collapsible dinghy. A latch is provided to hold each of the beams in erected positions.
REFERENCES:
patent: 1330363 (1920-02-01), Whitt
patent: 1822810 (1931-09-01), Hart
patent: 3416170 (1968-12-01), Dohet
patent: 3619001 (1971-11-01), Borskey
patent: 3780477 (1973-12-01), Sprung
patent: 3811454 (1974-05-01), Huddle
patent: 3971395 (1976-07-01), Lipinski
Reeves Robert B.
Wacyra Edward M.
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