Implements or apparatus for applying pushing or pulling force – Device or member for contacting and guiding moving cable – Including rotatable – cable contacting – pulley wheel element
Reexamination Certificate
2007-02-27
2007-02-27
Marcelo, Emmanuel M (Department: 3654)
Implements or apparatus for applying pushing or pulling force
Device or member for contacting and guiding moving cable
Including rotatable, cable contacting, pulley wheel element
Reexamination Certificate
active
10873350
ABSTRACT:
A preferred embodiment of a roller assembly for a lifting device for a personal-transportation vehicle includes a shaft member for mounting on a lifting arm assembly of the lifting device and having an outer surface, and a roller member for supporting a lifting strap of the lifting device. The roller member has an inner surface defining a central passage for receiving the shaft and contacting the outer surface. The inner and outer surfaces have complementary profiles that permit a relative orientation of the roller member and the shaft member to change so that a weight vector acting through the lifting strap can remain substantially perpendicular to an axial centerline of the roller member.
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Eldon, III James B.
McClanahan David D.
Panzarella Thomas A.
Cook Technologies, Inc.
Marcelo Emmanuel M
Woodcock & Washburn LLP
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