Land vehicles: wheels and axles – Wheel – Compression wheel
Patent
1988-09-19
1990-07-24
Arnold, Bruce Y.
Land vehicles: wheels and axles
Wheel
Compression wheel
301 37R, 428402, G02B 5128, B60B 700
Patent
active
049431390
ABSTRACT:
A retroreflective tubing adapted to be interwined among spokes of a wheel, comprising a core material, retroreflective microspheres attached to an outer surface of the core material, and a protective encapsulating material surrounding the microspheres. In a preferred embodiment, the cross section of the core material is U-shaped to maximize the retroreflective performance of the tubing, and the encapsulating material provides a multiplicity of sealed airspaces between the outer surface of the retroreflective microspheres and the inner surface of the encapsulating material.
REFERENCES:
patent: 2407680 (1946-09-01), Palmquist et al.
patent: 2948191 (1960-08-01), Hodgson et al.
patent: 3005382 (1961-10-01), Weber
patent: 3700305 (1972-10-01), Bingham
patent: 3834765 (1974-09-01), Trimble
patent: 3934065 (1976-01-01), Tung
patent: 4285573 (1981-08-01), Stone
patent: 4293189 (1981-10-01), Morikawa
patent: 4377988 (1983-03-01), Tung et al.
Bacon, Jr. Chester A.
Coderre James C.
Arnold Bruce Y.
Forrest Peter
Kachmarik Ronald M.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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