Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Reexamination Certificate
2007-04-19
2009-12-01
Marcelo, Emmanuel M (Department: 3654)
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
C254S275000, C254S278000, C254S285000, C052S121000, C052S118000, C212S348000
Reexamination Certificate
active
07624967
ABSTRACT:
An opposed-rope driven telescoping mast assembly includes a stationary support and a longitudinal mast comprising a longitudinal section joined to move relative to the stationary support. A drive assembly drives the longitudinal mast and includes a frame and a rotatable drum assembly mounted to the frame. A first rope is joined to the drum assembly and to the longitudinal mast to pull the longitudinal section in a first direction, while a second rope is joined to the drum assembly and to the longitudinal mast to pull the longitudinal section in a second direction. A sensor is operably coupled to the drive assembly to sense overload tension in the first rope or the second rope.
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“Striving for Excellence in Remote Positioning, Materials handling and Robotic Production”, PAR Systems Application Literature, 1998.
Doebler Gary R.
Jung Thomas E.
Sturm, Jr. Albert J.
Koehler Steven M.
Marcelo Emmanuel M
Par Systems, Inc.
Westman Champlin & Kelly P.A.
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