Positive displacement lubrication device

Details Positive displacement lubrication device Positive displacement lubrication device

2006-08-10

2009-12-22

Hannon, Thomas R (Department: 3656)

Bearings

Rotary bearing

Antifriction bearing

C384S462000

Reexamination Certificate

active

07635225

ABSTRACT:
A positive displacement lubrication system is disclosed that includes a rotatable shaft, a bearing, and a centrifugal force generating lubrication member that is mounted on the shaft for rotation with the shaft. The centrifugal force generator is spaced from the bearing member. A labyrinthine lubricant flow passage extends from the bearing, through a space between the bearing and the centrifugal force generating member, to the outlet member. Among other things, the system and method provides an efficient method of actively managing bearing lubrication and removal of lubricant, while also acting to seal off bearing areas from leaking. The positive displacement devices can be used for both grease and oil mist lubrication systems. They can also operate under heavy thrust loads when used to support the bearings.

REFERENCES:
patent: 1954685 (1934-04-01), Stanton
patent: 2439709 (1948-04-01), Asbury
patent: 2447671 (1948-08-01), Schuck
patent: 2998287 (1961-08-01), Pritchett
patent: 3090656 (1963-05-01), Lewis et al.
patent: 5150769 (1992-09-01), Major et al.
patent: 5150975 (1992-09-01), Major et al.

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