Appeal No. 2003-1569
Application No. 09/783,466
THE INVENTION
The invention relates to “universal joints with a shock
absorbing material between the yokes and the respective bearings”
(specification, page 1). Representative claims 1 and 11 read as
follows:
1. A universal joint comprising:
a cross member having two opposed pairs of trunions all
lying in a same plane, each trunion having a bearing cup mounted
thereupon;
a pair of yokes each having a pair of bores for mounting
each of said yokes to each of said opposed pairs of trunions by
way of said bearing cup mounted thereupon at positions spaced
ninety degrees relative to each other; and
a shock absorbing system for dissipating shock and torsional
vibration between at least one of said yokes and at least one of
said bearing cups, said shock absorbing system including an
elastomeric cylindrical element positioned between an outer
peripheral surface of said bearing cup and an inner peripheral
surface of said yoke, said cylindrical elastomeric member
preventing contact between said radially outer periphery of said
bearing cup and said inner periphery of said yoke bore, and said
cylindrical elastomeric member not extending beyond the axial
extent of said bearing cup.
11. A universal joint as recited in claim 1, wherein said
cylindrical sleeve has a cylindrical inner bore, said cylindrical
inner bore closely receiving said outer peripheral surface of
said bearing cup, such that said bearing cup has an end cross-
sectional area which does not align with a portion of said
cylindrical sleeve.
2
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Last modified: November 3, 2007