Appeal No. 1998-1965 Page 8
Application No. 08/357,325
cutting the extrusions to length, and inter-engaging the
locking teeth of the complementary extrusions by tilting one
of the extrusions about a portion of the other until their
teeth engage. A sheet of material (e.g., a window pane) can
be held in place by resilient gaskets and wedges (e.g.,
backing gasket 31 and glazing wedge 32) interposed between the
sheet and the extrusions. Miller illustrates in Figures 1-11
several shapes of extrusions, together with a variety of
different applications for the glazing trim. Miller teaches
(column 2, lines 36-68) that
[i]n order to assemble the glazing trim, for example in
the formation of a window, the timber or other frame can
be constructed, and the glazing trim cut to size to fit
within the opening defined by the frame. The glazing trim
can conveniently be connected together in butt fashion at
the corners, and thus for example the vertical glazing
members can run the entire height of the window frame,
whilst the horizontal glazing members can run the
distance between the vertical glazing members. . . .
The base sections can then be fitted to the frame by
appropriate fasteners such as nails, screws or the like.
The fasteners conveniently pass through the base of the
base section, through the groove 14
which serves as a locating groove. The resilient backing
gasket 31 can then be fitted to the top flange of each of the
base section members 10. The optional setting block members 34
can then be provided along the bottom base section 10, and as
the setting blocks are conveniently provided in short lengths,
they can be spaced apart from one another at convenient
spacings depending upon the size of sheet 30 to be fixed
between the glazing members. Then the sheet 30 is positioned
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