Appeal No. 95-3943
Application 08/050,318
connected to the surface 5 and to link 11 and frictionally held
in adjusted position via a "fixing device" (cam and spring
clamping arrangement) depicted in Figures 4 and 5 (note pages 5
and 6 of the translation).
Appealed claim 4 requires, in part,
first and second gas spring means . . . for
assisting in vertical lifting of said desktop
. . . and for locking said desktop in
vertical position,
and appealed claim 7 requires, inter alia,
first and second gas spring means for
assisting in vertical lifting of said desktop
. . . and for locking said desktop in a
vertical position above said support stand.
The scissors linkages and "fixing device" of Pülz certainly
provide a means for locking the surface 5 in vertical positions,
but they do not and cannot assist in vertical lifting thereof
as required by the claims on appeal.
Furthermore, although the patent to Guglielmi discloses an
hydraulic cylinder for vertical adjustment of a desk or table
and the patent to Sema discloses a gas spring 16 for driving
and retaining support elements of a table or desk in vertically
7
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