Lubricant retention assembly

Details Lubricant retention assembly Lubricant retention assembly

2006-05-09

2006-05-09

Fenstermacher, David (Department: 3682)

Lubrication

Systems

For twister ring or spinning spindle

C384S139000

Reexamination Certificate

active

07040453

ABSTRACT:
A lubricant retention assembly is employed with an electric motor to prevent the loss of lubricant from a self contained lubricant reservoir of the motor. The lubricant retention assembly includes a thrust collar mounted on the motor shaft and a bearing cap surrounding the thrust collar, where the thrust collar has an annular flange that throws lubricant leaking along the shaft radially outwardly toward the bearing cap. The bearing cap has an angled interior surface that deflects the lubricant thrown from the annular flange of the thrust collar back into the motor interior and toward the lubricant reservoir. A thrust washer is also provided on the shaft adjacent the thrust collar and prevents lubricant leakage along the shaft between the interface of the shaft and the thrust collar. The thrust washer and thrust collar have complementary configurations that maintain the thrust washer in position on the shaft adjacent the thrust collar.

REFERENCES:
patent: 1945219 (1934-01-01), Fruhstofer
patent: 3183153 (1965-05-01), Turk
patent: 4217007 (1980-08-01), Filippa
patent: 4599006 (1986-07-01), Abel
patent: 4711590 (1987-12-01), Lakin
patent: 5575355 (1996-11-01), Williams et al.
patent: 5683184 (1997-11-01), Striedacher et al.
patent: 5798589 (1998-08-01), Ohi et al.
patent: 6008557 (1999-12-01), Dornhoefer et al.
patent: 299 21 718 (2001-05-01), None
patent: 2 650 130 (1991-01-01), None

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