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Class Information
Number: 254/278
Name: Implements or apparatus for applying pushing or pulling force > Apparatus for hauling or hoisting load, including driven device which contacts and pulls on cable > Device includes rotatably driven, cable contacting drum > Plural drums or drum with plural distinct sections
Description: Apparatus including either (a) at least one other driven, cable-contacting drum rotatable about an axis fixed relative to another portion of the apparatus, or (b) a driven drum with two or more distinct, structurally separated, cable-contacting regions which each pull on either different cables or different ends of the same cable.










Sub-classes under this class:

Class Number Class Name Patents
254/293 Each drum having plural, distinct drive sources or discrete drive trains 9
254/294 Having common drive source or mechanically interlinked drive trains 28
254/283 Having rotatable, cable guiding, pulley wheel element spaced from drums 22
254/287 Juxtaposed to cable at single locus 10
254/290 Plural, distinct, drive motors 22
254/288 With means affixing at least one drum to supporting base and allowing movement between drum and base 17
254/279 With vehicle for supporting at least one drum 26


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8702067 Axial displacement device, line deployment system, and a method for deploying a line Apr. 22, 2014
8651462 Method and lift construction for lifting and lowering a blade of a windmill Feb. 18, 2014
8616527 Hoist using friction wheel Dec. 31, 2013
8578742 Conformal automated wrist restraint and method of use Nov. 12, 2013
8561968 Marine load raising and lowering system Oct. 22, 2013
8550267 Apparatus for cable management synchronized with telescopic motion Oct. 8, 2013
8517345 Shipboard winch with guide vanes Aug. 27, 2013
8511645 Anti-kinking transmission and guiding system for running cables Aug. 20, 2013
8459613 Drive system for potentiometer adjustment Jun. 11, 2013
8453855 Turning device for hoist Jun. 4, 2013
8322692 Device for winching Dec. 4, 2012
8322691 Winch for pulling cables, in particular synthetic cables used offshore Dec. 4, 2012
8292268 Reduced size and reconfigurable winch Oct. 23, 2012
8251351 Traction winch Aug. 28, 2012
8246010 Fluid shear actuated hoist brake Aug. 21, 2012
8215618 Power cable Jul. 10, 2012
8167273 Spring-latched connection for torque transmitting shaft May. 1, 2012
8162291 Winch Apr. 24, 2012
8152140 Flat belt clamping pulley Apr. 10, 2012
8083212 Wind-turbine rotor-blade hoisting apparatus, method for attaching wind-turbine rotor blade, and method for constructing wind power generator Dec. 27, 2011
8056883 Manual storage lift system Nov. 15, 2011
8052123 Unified remote control operation of yacht winches Nov. 8, 2011
8016268 Wind tower service lift Sep. 13, 2011
8002243 Configurable winch Aug. 23, 2011
7975987 Wire-twisting prevention device of lifting reel with four-line wire structure and lifting reel having the same Jul. 12, 2011
7963505 Self-contained self-elevating platform lift Jun. 21, 2011
7926789 Lifting gear Apr. 19, 2011
7909308 Winch system for VTOL aircraft Mar. 22, 2011
7896315 Control and regulation device for safeguarding a conveyor device, conveyor device and crane unit Mar. 1, 2011
7866632 Multi-compartmental winch device Jan. 11, 2011
7866631 Rope tensioner for winch Jan. 11, 2011
7866630 Winding mechanism with tension control function and trawling apparatus Jan. 11, 2011
7862009 Electric winch motor Jan. 4, 2011
7810792 Modular lift assembly having telescoping member Oct. 12, 2010
7798471 Direct acting single sheave active/passive heave compensator Sep. 21, 2010
7798472 Load balancing hoist Sep. 21, 2010
7780147 Drawworks having annulus rotating union with brake cooling system Aug. 24, 2010
7766307 Cable handling device Aug. 3, 2010
7757818 Drive motor for an elevator installation and method of mounting a drive motor Jul. 20, 2010
7735808 Method and system for performing operations on a wind turbine Jun. 15, 2010
7644907 Drum for a well access line Jan. 12, 2010
7624845 Method and apparatus for adjusting the distance between the cars of a double-deck elevator Dec. 1, 2009
7624967 Opposed-rope hoist driven telescoping mast Dec. 1, 2009
7621506 Multi-compartmental winch device Nov. 24, 2009
7618023 Method and a device for removing vehicle windows Nov. 17, 2009
7614608 Rope tensioner for winch Nov. 10, 2009
7594640 Multi-line, multi-function yacht winch Sep. 29, 2009
7527243 Platform lifting mechanism provided with a driving pulley and corresponding driving system May. 5, 2009
7523919 Ceiling mounted lift Apr. 28, 2009
7494109 Winch for a segmented wire and method for operating said winch Feb. 24, 2009

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