US PATENT SUBCLASS 475 / 269
WITH MEANS TO VARY DRIVE RATIO OR DISCONNECT DRIVE (E.G., BRAKE OR CLUTCH)

Current as of: June, 1999
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475 /   HD   PLANETARY GEAR TRANSMISSION SYSTEMS OR COMPONENTS

269WITH MEANS TO VARY DRIVE RATIO OR DISCONNECT DRIVE (E.G., BRAKE OR CLUTCH) {16}
270  DF  .~> Manual force provides reaction during drive
271  DF  .~> Plural elements selectively braked {10}
293  DF  .~> Speed responsive clutch or brake
294  DF  .~> Ratio shift initiated by reverse rotation of input shaft
295  DF  .~> Plural outputs
296  DF  .~> Plural drive ratios other than unity {1}
298  DF  .~> Gear shiftable axially to disconnect or vary ratio {2}
301  DF  .~> Brake or clutch on surface of helically coiled member
302  DF  .~> Nonplanetary gearing combined with planetary
303  DF  .~> With synchronizing clutch or brake
304  DF  .~> Planet pinion is worm gear
305  DF  .~> Including releasable clutch directly between planet pinion and carrier
306  DF  .~> Brake for planetary transmission having axis of planet pinion at angle to axis of mating gear (e.g., bevel gears) {2}
311  DF  .~> Sun braked {3}
317  DF  .~> Orbit braked {3}
323  DF  .~> Carrier braked {3}

DEFINITION

Classification: 475/269

WITH MEANS TO VARY DRIVE RATIO OR DISCONNECT DRIVE (E.G., BRAKE OR CLUTCH):

(under the class definition) Subject matter which includes a ratio-changing device to provide at least two different speed ratios*; or wherein means are provided to disconnect the flow of power to an output member* while an input member* continues to rotate.

SEE OR SEARCH THIS CLASS, SUBCLASS:

91+, for fluid-resistance type clutches* and brakes*.

116+, for fluid control of clutches* and brakes*.

149+, for electrical control of clutches* and brakes*.