Appeal No. 2004-2209 2
Application No. 09/406,445
of a housing and a wedge disposed in the housing. The wedge has a friction surface
aligned for contact with the non-metallic guide rail. The friction surface, along with the
non-metallic guide rail, has a coefficient of friction of approximately 1.0, and the friction
surface is sized and shaped so that the friction surface contacts the guide rail with no
more than approximately 50 psi of pressure.
The claimed subject matter may be further understood by reference to the
appealed claims appended to appellants’ brief.
The references of record relied upon by the examiner as evidence of
obviousness are:1
Pearson 5,065,845 Nov. 19, 1991
Kopman et al. (Kopman) 5,531,295 Jul. 2, 1996
Hladnik DE 2,054,936 A May 27, 1971
Winkler et al. (Winkler) GB 2,190,356 A Nov. 18, 1987
The Rejections
Claims 25-31, 33 and 34 stand rejected under 35 U.S.C. § 112, first paragraph.
Claims 15-20, 23, 25-30 and 33 stand rejected under 35 U.S.C. § 103 as
unpatentable over the German laid open application to Hladnik in view of the UK patent
application to Winkler.
1Our understanding of the German application is via a translation provided by the USPTO.
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