Appeal No. 1998-1454 Page 10
Application No. 08/422,840
The anticipation rejections
Turning first to the examiner's rejection of claims 1
through 12 and 14 through 20 under 35 U.S.C. § 102(b) as being
anticipated by the Seliger patent, Seliger (Figure 2)
discloses an apparatus for cranking the rotor of a turbo
machine, the apparatus comprising a drive shaft (27) rotatably
mounted in a sleeve (24) and having a friction wheel (26) on
one end thereof for engagement with the rotor cranking surface
(23). The sleeve and drive shaft are mounted in a housing
(31) having an arresting means (22) at one end thereof for
fixing the apparatus in an opening (24') of the compressor
casing at an angle. The apparatus is provided with a thrust
piece (34) biased by a coil spring against the sleeve (24). A
nut (33) screwed over a tubular extension (32) is used to
adjust the preload on the coil spring to thereby adjust the
contact pressure of the friction wheel on the rotor surface.
A square-head pin-type extension (18) of the drive shaft
extends through a handle (12') provided with a flange (17). A
crank apparatus (Figure 1A) provided with a crank (41), a
fitting (40) having a square-shaped socket adapted to
accommodate the extension (18) and a casing (44) is secured to
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