US PATENT SUBCLASS 254 / 266
.~ Device includes rotatably driven, cable contacting drum

Current as of: June, 1999
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254 /   HD   IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE

264  DF  APPARATUS FOR HAULING OR HOISTING LOAD, INCLUDING DRIVEN DEVICE WHICH CONTACTS AND PULLS ON CABLE {4}
266.~ Device includes rotatably driven, cable contacting drum {34}
267  DF  .~.~> Having rotational speed governor for generating control impulse to rotation retarding means or drive
268  DF  .~.~> Having mechanism, actuated by changes in position of drum relative to another component of device, for generating control impulse to rotation retarding means or drive
269  DF  .~.~> Having stationary mechanism, actuated by load or other obstruction on and traveling with cable, for generating control impulse to rotation retarding means or drive
270  DF  .~.~> Having cable contacted, supported, or attached mechanism for generating control impulse to retarding means or drive {2}
274  DF  .~.~> Having mechanism, linked to drum or rotating element of drive, for generating control impulse to rotation retarding means or motor when torque on drum varies {1}
276  DF  .~.~> Having mechanism, linked to drum and actuated by number of drum rotations, for generating control impulse to rotation retarding means or drive
277  DF  .~.~> With fluid or resilient shock absorbing or tension maintaining means attached to, supported by, or supporting guiding structure for cable
278  DF  .~.~> Plural drums or drum with plural distinct sections {7}
323  DF  .~.~> With vehicle for supporting drum {3}
329  DF  .~.~> With means affixing drum to supporting base and allowing relative movement therebetween {3}
333  DF  .~.~> Having pressure element spaced from drum to confine cable thereagainst
334  DF  .~.~> Having rotatable, cable guiding, pulley wheel element spaced from drum {2}
339  DF  .~.~> Having plural, distinct drive sources or discrete drive trains {1}
341  DF  .~.~> Drive includes rack and either pinion or pinion segment
342  DF  .~.~> Drive includes intermeshing gears {7}
358  DF  .~.~> Drive includes sprocket wheel and chain
359  DF  .~.~> Either drive or cable return means includes power transmitting pulley and rope or belt
360  DF  .~.~> Drive includes expansible, noncombustible, fluid motor (e.g., air, steam)
361  DF  .~.~> Drive includes noncompressible fluid motor or pump
362  DF  .~.~> Drive includes electric motor
363  DF  .~.~> Drive includes contacting friction wheels having noncollinear axes of rotation
364  DF  .~.~> Either drive or cable return means includes spring
365  DF  .~.~> Drive includes clutch mechanism having coaxial, rotatable, relatively shiftable axially, power transmitting components {3}
369  DF  .~.~> Drive includes ratchet wheel and interengaging driving pawl
370  DF  .~.~> Drive includes clutch mechanism having rotatable, radially shiftable, power transmitting component
371  DF  .~.~> With means on circumference of drum, or relatively movable drum components, for grasping cable
372  DF  .~.~> With projections or apertures on drum for engagement with complementary structural formations on cable
373  DF  .~.~> With pickup or pushing means on circumference of drum for cooperating with structure attached to, or formed on, end of cable
374  DF  .~.~> Having noncircular or varying diameter, cable contacting perimeter
375  DF  .~.~> Including means for preventing or retarding rotation of drum in at least one direction {3}
380  DF  .~.~> With portable housing for drum and hand manipulated means for removably fastening housing to supporting base or load
381  DF  .~.~> With structure (e.g., sweep, tree, yoke) adapting drum to be powered by draft animal
382  DF  .~.~> Including static receiver spaced from drum for storing pulled cable
383  DF  .~.~> With cable guard structure extending partly around and closely adjacent to drum

DEFINITION

Classification: 254/266

Device includes rotatably driven, cable contacting drum:

(under subclass 264) Apparatus wherein the device includes a drum which is driven about an axis fixed relative to at least one other portion of the apparatus, the drum having a perimeter which contacts the cable and winds a segment of the cable around the drum's axis of rotation, or otherwise engages and pulls the segment of cable, when the object is transported or shifted.

(1) Note. The term "drum" is used in this and the indented subclasses to designate a rotatable structure, (e.g., capstan, driven pulley, driven sprocket wheel, gipsy, spindle, spool, wildcat, winding drum, windlass, etc.), which is caused to turn about an axis of rotation by a drive source and which has a perimeter for contacting and pulling on a cable, whereby a driving force is transmitted from the source, by way of the drum and cable, to the load.

(2) Note. In order to avoid the scattering of art of a related nature, it has not been possible to require that the

drum always be claimed significantly for classification in this and the indented subclasses. Rather, the structure recited may be only minimal, (e.g., a projection on the drum, a bearing face at its axis) in some instances, or, in the extreme, the drum may appear only nominally in the claim, (e.g., the mere locating of it relative to another part of the haulage system, such as a cable guide pulley or a drive means for the drum).

(3) Note. Cable reeling devices which are used to lower a gravity influenced load by retarding the rotation of the cable reel or the movement of the cable wound thereon, but which do not have reel rotating power means capable of shifting the load either upwardly or horizontally, are found in Class 242, particularly subclass 396.

SEE OR SEARCH THIS CLASS, SUBCLASS:

47, for vehicle-body lifters which include a cable and drum for hoisting the body.

202, and 213+, for implements or apparatus for tensioning flexible material or for extracting stumps or poles including a rotatably driven drum and cable. SEE OR SEARCH CLASS

33, Geometrical Instruments,

715, for sounding devices having an automatic reel for winding or unwinding a line which supports a weight or bob.

74, Machine Element or Mechanism,

89.2+, for a drum and cable used to reciprocate or oscillate one component of an apparatus relative to another component of the apparatus.

104, Railways,

165, for car hauling apparatus comprising an endless cable; subclass 183 for car-hauling apparatus comprising a cable-winding drum; and subclass 235 for car-hauling apparatus comprising a cable-contacting drum moving along a fixed cable.

114, Ships,

254, for a towing device which includes a cable storage means (e.g., a reel); and subclasses 365+ for a life craft handling device, and see the notes under the definition thereof.

182, Fire Escape, Ladder, or Scaffold,

37, 142+, 231+, and 236+ for apparatus having a strand contacting reel which is used in a fire escape or scaffold and either pulls on the strand or retards the descent of the

portion of the strand supporting an occupant. 187, Elevator, Industrial Lift Truck, or Station Vehicle,

251+, for an elevator in which the car is lowered or raised by a cable attached to a winding drum.

198, Conveyors: Power-Driven,

804+, for endless power-driven conveyors.

242, Winding, Tensioning, or Guiding,

370+, for a reeling device for unwinding, rewinding, and storing elongated material.

248, Supports,

329+, for vertically adjustable supports suspended from a cord stored on a reel.

280, Land Vehicles,

480, for articulated vehicles connected together by tow ropes; and subclasses 491.1+ for articulated vehicles connected by a retractable, foldable or knockdown-type draft or coupling member.

440, Marine Propulsion,

34, for cable towing type propulsion system. 464, Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts, appropriate subclasses for a flexible shaft coupling.