Coated products for use in harsh environs

Details Coated products for use in harsh environs Coated products for use in harsh environs

1990-03-29

1990-11-27

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384498, 384624, 384625, F16C 2508

Patent

active

049731726

ABSTRACT:
A product for use in a power train such as a bearing assembly, a reducer, a coupling or the like and which is suitable for use in a wet or harsh chemical environment including a housing, exterior surfaces of said housing having tough, durable coatings of fluorocarbon polymers to render same resistant to corrosion or chemical attack during usage in the food and chemical industry, and the method of making the same. A first polymer is present in a thickness of from about 0.5 to about 0.8 mill and exhibits thermoset characteristics for bonding to the housing. A second polymer is applied over the first polymer on all exterior surfaces to be protected in a thickness of up to about 4.0 mils and is bondable to said first polymer coating.

REFERENCES:
patent: 2004708 (1935-06-01), Pfanstiehl
patent: 3957319 (1976-05-01), Gorski
patent: 4252859 (1981-02-01), Concannon et al.
patent: 4554704 (1985-11-01), Raffaeli
patent: 4834400 (1989-05-01), Lebeck
Teflon Industrial Coatings-Du Pont (no date).
Teflon/Silverstone Coatings Fact Sheet-Du Pont (no date).

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