Appeal 2007-0694
Reexamination Control 90/006,433
Patent 5,428,933
Guarriello Figure 9, depicted above, demonstrates that two forms may be
placed adjacent to each other via an interior separator 290 such that concrete
poured in one form is permitted to communicate to an adjacent form. (Id. at
col. 6, ll. 3-11).
22) The upper and lower faces of Guarriello’s side walls have locking
members in the form of projections and recesses. (Figs. 8 and 9).
23) Guarriello’s projections and recesses form two alternating rows. For
example, Guarriello 9 depicts alternating rows of projections (ribs) 270 and
alternating rows of recesses (channels) 276.
24) Guarriello’s projections and recesses are offset such that a recess on
one row on the top edge is opposed to a projection on the bottom edge.
(Guarriello, col. 4, l. 67 to col. 5, l. 9).
25) Guarriello’s blocks are formed such that they may be interconnected
in a bidirectional manner. (Guarriello, col. 5, ll. 9-14 and 45-48).
2. Horobin, U.S. Patent 4,894,969
26) Horobin ‘969 is directed to an insulating block form for use in the
construction of concrete wall structures. (Horobin, Abstract).
27) Horobin ‘969 states that its blocks are made from expandable styrene.
(Id.).
11
Page: Previous 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Next
Last modified: September 9, 2013