Appeal No. 95-3883
Application No. 08/147,987
the latter into a drilled hole, so that when said cartridge
with said separating means is crushed by said rotating
anchoring rod said rotating anchoring rod generates shear
forces which liquify said water component and said components
are mixed by said rotating anchoring rod and produce a bonding
agent which prevents any escape of said water component and
fixes said anchoring rod in the drilled hole.
The references of record relied upon as evidence of
obviousness are:
Montgomery 3,618,326 Nov. 9,
1971
Maechtle 5,282,697 Feb. 1,
1994
(filed Feb. 21,
1992)
Claims 1, 3, 5 and 6 stand rejected under 35 U.S.C. § 103
as unpatentable over Maechtle in view of Montgomery.
According to the examiner, Maechtle discloses a composite
rotatable anchoring rod and a crushable cartridge that is
filled with two components of hardenable bonding agent that
includes mineral mortar and water. Maechtle discloses that
the anchoring rod will crush the separating means so that the
two components will mix. Maechtle does not disclose the use
of thixotropic agent in any of the two components. The
examiner is further of the view that Montgomery discloses a
thixotropic agent that can be pyrogenic silica. Thus, the
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