Appeal No. 1998-1931
Application No. 08/395,411
wheels of varying length to conform to the contour of the 2
envelope, a terminal piece of hard material provided on an end
face of a wheel and forming an edge, and a hollow cylinder in
flush-mounted disposition to the terminal piece so that during
negotiation of a turn the edge of the terminal piece is
exposable to effect a firm grip.
2Each of claims 1 and 15, as indicated, expressly refer
to the "contour" of the envelope. Consistent with the
underlying specification (page 10, lines 4 through 11), we
understand the "contour" of the envelope to broadly denote an
outline of a curving figure. Webster’s New Collegiate
Dictionary, G. & C. Merriam Company, Springfield,
Massachusetts, 1979.
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