US PATENT SUBCLASS 464 / 51
TORQUE TRANSMITTED VIA FLEXIBLE ELEMENT

Current as of: June, 1999
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464 /   HD   ROTARY SHAFTS, GUDGEONS, HOUSINGS, AND FLEXIBLE COUPLINGS FOR ROTARY SHAFTS

51TORQUE TRANSMITTED VIA FLEXIBLE ELEMENT {16}
52  DF  .~> With stationary housing {1}
54  DF  .~> Element coiled sinusoidally about axially spaced driving and driven members
55  DF  .~> Element is flaccid and operates in tension during torque transmission (e.g., belt, cable, etc.) {1}
57  DF  .~> Element has plural convolutions wound about rotational axis {3}
61  DF  .~> Element is a spring coiled about centerline angularly related to or radially spaced from rotational axis {1}
69  DF  .~> Plural flexible links connected to circumferentially spaced axially directed pins on drive and driven members
70  DF  .~> Element is annular liner within radially spaced pin-receiving opening {1}
73  DF  .~> Element positioned between intermeshing teeth on driving and driven members {2}
77  DF  .~> Element is an open loop spring curved about rotational axis
78  DF  .~> Element is tube with slot through wall to provide flexibility
79  DF  .~> Element includes diverging wall portions defining annular groove completely surrounding rotational axis (e.g., bellows) {1}
81  DF  .~> Plural circumferentially spaced elements {4}
87  DF  .~> Nonmetallic element {3}
97  DF  .~> Element is a torsion bar having a longitudinal axis coincident with the rotational axis
98  DF  .~> Element is plate with external edge completely surrounding rotational axis (e.g., disc) {1}
100  DF  .~> Element is leaf spring {1}

DEFINITION

Classification: 464/51

TORQUE TRANSMITTED VIA FLEXIBLE ELEMENT:

(under the class definition) A shaft or flexible coupling as defined in the ... wherein said shaft or flexible coupling includes an element through which rotational torque is transmitted, and wherein said element is made of a material which is flexible.

(1) Note. While all materials may have at least some minimal inherent flexibility, for a patent to be placed in this and indented subclasses, such flexibility must be

intended to be used as a desirable feature in the functional operation of the device.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

411, for structure providing yield ability in gear trains; subclass 443 for sound deadening means associated with rotary bodies; and subclasses 489 and 500.5+ for a flexible push-pull motion transmitting means such as a Bowden cable.

105, Railway Rolling Stock,

131, for a resilient drive for a wheel or axle. 180, Motor Vehicles,

254+, for a vehicle having a driven and steerable wheel and including a flexible drive transmitting means for transmitting torque to the wheel.

192, Clutches and Power-Stop Control,

200+, for a clutch element combined with means to resiliently mount such element on a hub.

279, Chucks or Sockets,

16, for a self-centering or floating chuck or socket.

310, Electrical Generator or Motor Structure,

75+, for a drive mechanism which may include a flexible shaft.

433, Dentistry,

112, for a flexible shaft transmission in a dental apparatus.

474, Endless Belt Power Transmission Systems or Components,

94, for a flexible connection between a pulley or guide roll rim and its mount.