Machine element or mechanism – Elements – Gear casings
Patent
1990-04-20
1991-12-31
Braun, Leslie A.
Machine element or mechanism
Elements
Gear casings
74 8917, 74DIG10, 428422, 295272, F16H 5700, B32B 2700
Patent
active
050761153
ABSTRACT:
A gear box or the like adapted for prolonged effective use in a harsh and/or corrosive environment such as found in the chemical industry and are in which salt water is prevalent. Components of the gear box are provided with protective polymer coatings which are low friction and impervious to attack from the environment and materials used therein. Exterior surfaces of the housing are coated with a polymer that also withstands impact from foreign objects as exemplified by polyamides, epoxies and fluorocarbons with nylon being preferred. Other components such as the input shaft, bushings and the like are preferably coated with one or more layers of fluorocarbon polymers, with layers in contact with the component including a thermosettable binder component such as a phenolic. Certain coating thicknesses are most preferred.
REFERENCES:
patent: 3076668 (1963-02-01), Famely
patent: 3389749 (1968-06-01), Towns et al.
patent: 3931748 (1976-01-01), Tertinek et al.
patent: 4277200 (1981-07-01), Speakman
patent: 4374874 (1983-02-01), Blitstein et al.
patent: 4584893 (1986-04-01), Harding et al.
patent: 4623087 (1986-11-01), Conolly
patent: 4645440 (1987-02-01), Murata et al.
DeWachter Gary
Newton John K.
Braun Leslie A.
Reliance Electric Industrial Company
Yip Winnie
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