Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Casters – Wheels
Patent
1996-11-04
1998-03-31
Mah, Chuck Y.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Casters
Wheels
384276, 384416, A47B 9100, B60B 3300
Patent
active
057324417
ABSTRACT:
An industrial wheel for trolleys, carts, pulleys. And the like with a self lubricated bearing of fuoroplastic, or the like, that slants at an angle from the center of the wheel out to the rim, so as to have a larger surface area, with consequent lower force or friction. The slanted bearing also locates the wheel in the center, eliminating the need for retaining devices along sides of the wheel.
REFERENCES:
patent: 200241 (1878-02-01), Atkinson
patent: 698110 (1902-04-01), Foy
patent: 3401421 (1968-09-01), Aninger
patent: 4285550 (1981-08-01), Blackburn et al.
patent: 4783880 (1988-11-01), Chapman et al.
patent: 5056938 (1991-10-01), Ahlman et al.
patent: 5219232 (1993-06-01), Adams et al.
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