Appeal No. 2000-0505
Application 08/856,743
The claimed invention is directed to a ball and socket
bearing wherein the bulbous ball portion of the ball and
socket is formed of an ultra-high molecular weight
polyethylene. The socket-like journal box is then cast around
the ball, but it is not bonded thereto because of the ball's
non-stick properties.
The claims may be further understood with reference to
the appendix appended to appellants' brief. 1
The references of record relied upon by the examiner as
evidence of obviousness are:
Cox et al. (Cox) 2,637,528 May 5,
1953
Koch 4,109,976 Aug.
29, 1978
Strong et al. (Strong) 5,346,315 Sep. 13,
1994
REJECTION
Claim 10 stands rejected under 35 U.S.C. § 112, first
1The following areas are deserving of correction in any
further prosecution before the examiner: In claim 3, it is
noted that tetrafluoroethylene is a gas at standard
temperature and pressure. Presumably, polytetrafluoroethylene
is intended.
In Figs. 5 and 6, the bearings 26 and 28 disclosed as
formed of polyethylene are crosshatched as a metal. This same
error is found in Fig. 8.
2
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