1979-03-22
1981-11-10
Lazarus, Ira S.
Cutlery
64 23, 308207R, F16D 326
Patent
active
RE0307904
ABSTRACT:
Improved lubrication of bearing cups in universal joints is provided. A cross of a universal joint has four trunnions extending therefrom along two mutually perpendicular lines. Bearing cups are rotatably received on the trunnions and the cups in turn are held by universal joint yokes. Lubrication passages extend from a central portion of the cross outwardly toward the ends of the trunnions. When the universal joint is stationary, lubricant such as grease may drain from an upper bearing cup down to a lower cup, leaving the upper cup devoid of lubrication when the universal joint is again placed in operation. In accordance with the invention, a cavity is in the end of each trunnion communicating with the bearing cup and a passage extension extends substantially through the cavity from the lubrication passage toward the end of the trunnion. Lubricant is trapped in an annular space formed between the passage extension and the wall of the cavity with this lubricant being readily available to lubricate the corresponding cup when the universal joint is placed in operation.
REFERENCES:
patent: 1577268 (1926-03-01), Tarbox
patent: 1841349 (1932-01-01), Culbertson
patent: 2040002 (1936-05-01), Jones
patent: 3204428 (1965-09-01), Stokely
patent: 3470711 (1969-10-01), Kayser
patent: 3592022 (1971-07-01), Stokely
patent: 3721110 (1973-03-01), Borneman
patent: 3901049 (1975-08-01), Herscovici
Dana Journal Cross Design 5-5-168X.
Lazarus Ira S.
Moy Magdalen
The Zeller Corporation
LandOfFree
Universal joint lubrication does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Universal joint lubrication, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Universal joint lubrication will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2356745