Bridges – Gangway – ramp – or dock leveler
Patent
1994-01-21
1995-10-17
Britts, Ramon S.
Bridges
Gangway, ramp, or dock leveler
404 40, 404 41, 238 10R, E01D 1512
Patent
active
054578370
ABSTRACT:
A portable track device for a wheelchair includes at least two track sections which can be coupled removably to each other, and each track section has a bottom channel between a right sidewall and a left sidewall, with a reinforcement rod in each sidewall and with transverse supports located in the bottom channel. Each track section is equal to, or greater than, the length of the wheelchair. The occupant of the wheelchair can travel safely across difficult terrain, such as a sandy beach.
REFERENCES:
patent: 3820912 (1974-06-01), Hughes
patent: 4176982 (1979-12-01), Boswell
patent: 4254907 (1981-03-01), Pine
patent: 4376596 (1983-03-01), Green
patent: 4528711 (1985-07-01), Packer
patent: 4681482 (1987-07-01), Arciscewski et al.
Britts Ramon S.
O'Connor Pamela A.
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