Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Casters – Wheels
Patent
1976-11-12
1978-01-10
Newton, Dorsey
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Casters
Wheels
B60B 3300
Patent
active
040670830
ABSTRACT:
A composite caster comprised of an insert made from a thermo-plastic material, such as nylon, having certain characteristics and a tread portion made from a second type of plastic material, such as urethane, having different characteristics, with the tread portion molded directly onto the insert to provide an integrated whole, with the insert formed with rim elements having positive interlocking relationships with the molded on tread portion.
Newton Dorsey
Shepherd Products U.S. Inc.
LandOfFree
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