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
2007-12-18
2007-12-18
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
C254S272000
Reexamination Certificate
active
10547272
ABSTRACT:
A hoist apparatus (10) including a rope sensing device (14) for detecting rope fouling events. The rope sensing device (14) includes a lever arm (74) having a first end portion (74g), a second end portion (74h), and a pivot point (74j) located between the first (74g) and second (74h) end portions along the lever arm (74). The lever arm (74) is pivotably mounted to a frame (18) of the hoist apparatus for movement between a sensing position and a fouled position. A follower (78) is connected to the first end portion (74g) and positioned adjacent and spaced from a drum (30) of the hoist apparatus such that rope (38) winds on to the drum spaced from and relative to the follower (78) when the rope sensing device is in the sensing position. A switch actuator (82) is connected to the second end portion (74h) adjacent a switch (86) such that the switch is actuated to a motor stop position when a rope fouling event occurs.
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Patent Cooperation Treaty International Search Report for International Application No. PCT/US03/07011, mailed Jul. 11, 2003.
Marcelo Emmanuel M
MHE Technologies, Inc.
Porter Wright Morris & Arthur LLP
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