Coating processes – With cutting – holding – severing – or abrading the base
Patent
1976-03-12
1977-03-22
Lusignan, Michael R.
Coating processes
With cutting, holding, severing, or abrading the base
427401, 427435, B05D 312, B05D 118
Patent
active
040138089
ABSTRACT:
A caster utilizing mounting structure, leg structure rotatably mounted on the mounting structure, and a wheel rotatably mounted upon the legs wherein the relatively movable parts of the caster are sealed against the entrance of foreign matter by means of a resilient synthetic material cover. In the method of constructing a caster in accord with the invention components thereof are coated with the coating material, such as by dipping, and the coating material, after curing, is severed at the desired locations to form sealing edges between relatively movable components. In a preferred method of forming the caster, mandrels having a configuration similar to the final caster components may be employed, however, it is within the scope of the invention to use the caster components themselves for molding purposes wherein the sealing material is later severed at the desired locations. The resultant sealed caster, while not watertight, is effective to prevent most foreign matter from entering the relatively moving components of the caster such as the swivel bearing and axle.
REFERENCES:
patent: 2175773 (1939-10-01), Hoogstoel
patent: 3399421 (1968-09-01), Crawford
patent: 3477867 (1969-11-01), Hillier
Lusignan Michael R.
Midwest Precision Corporation
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