IAN CAMPBELL CREE
Medical Practice in Rancho Santa Fe, CA
License number
Pennsylvania MD034652L
Category
Medicine
Type
Medical Physician and Surgeon
Address
Address
2
Rancho Santa Fe, CA 92067
Pennsylvania
Pennsylvania
Personal information
See more information about IAN CAMPBELL CREE at radaris.comName
Address
Phone
505 Sycamore Dr, Hanford, CA 93230
Professional information
Foldable Ramp
US Patent:
4726516, Feb 23, 1988
Filed:
Apr 6, 1987
Appl. No.:
7/034536
Inventors:
Ian C. Cree - Rancho Santa Fe CA
International Classification:
E01B 2300
US Classification:
238 10R
Abstract:
A pair of coplanar, telescopic tracks are held in a spaced-apart and generally parallel relationship by a plurality of crossties. The crossties may also be telescopic to vary the space between the tracks according to use. At one end the tracks can be elevated by length-adjustable props or variable trusses. Each track comprises at least two segments, a first segment adapted to be slidably disposed in a channel of the second segment. The segments can be channel bars. A detent is used to temporarily hold the tracks at any of a plurality of telescoped lengths. A variable truss comprises a pair of divergent struts with a variable length member subtending the angle between the struts. This device is especially useful as a variable ramp for wheelchairs when it is made from relatively lightweight material such as aluminum.