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
2011-03-01
2011-03-01
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
C254S278000, C254S294000, C254S319000, C254S347000
Reexamination Certificate
active
07896315
ABSTRACT:
A control and regulation arrangement for protection of a conveyor or other hoisting or crane device that assures a safe reaction to overloading. A brake apparatus is provided that acts on the conveyor under control of an overload sensor. If the load approaches a predetermined threshold, a signal is emitted from the overload sensor and transmitted to a speed sensor that limits the conveyor speed. Simultaneously the control transmits a signal to the brake apparatus to actuate and stop the conveyor. Upon receipt of a subsequent signal that a load relief state is to be established, the control brakes the conveyor in accord with the speed signal such that the object in transport moves toward a safe position at a constant speed. A conveyor with multiple hoisting devices may include duplicate control and regulation arrangements for each hoisting device.
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English-language translation of International Preliminary Report on Patentability issued on the corresponding PCT application.
Official communication issued by Russian Federation Federal Service for Intellectual Property, Patents and Trademarks in corresponding Russian patent application (with German translation), 6 pages.
Hooker & Habib, P.C.
Marcelo Emmanuel M
Pintsch Bubenzer GmbH
LandOfFree
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