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
2007-09-14
2008-10-07
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
C254S409000, C254S412000, C254S416000, C474S199000
Reexamination Certificate
active
07431269
ABSTRACT:
The present invention is a sheave assembly that includes a ring supported by a support assembly instead of a solid sheave wheel supported by a central axle. The support assembly may include a plurality of rollers or a curved shoe. The ring is made of a lubricated plastic material or other similar material. The ring includes a groove for retaining the wireline or cable and an inner surface that is designed to mate with the outer surface support assembly.
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Carlson Derek
Dayton Kenn
Mace Brian
Vance Russ
Vent George
Kirton & McConkie
Marcelo Emmanuel M
Wireline Technologies, Inc.
Witt Evan R.
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