US PATENT SUBCLASS 60 / 435
.~ Having a mechanical clutch or brake device in the power train

Current as of: June, 1999
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60 /   HD   POWER PLANTS

325  DF  PRESSURE FLUID SOURCE AND MOTOR {47}
435.~ Having a mechanical clutch or brake device in the power train {5}
436  DF  .~.~> Correlated control of device and motive fluid flow controller
437  DF  .~.~> Selective fluid and mechanical drive of output from input {1}
439  DF  .~.~> Device acts on intermediate reactive rotor to modify speed ratio or direction {1}
441  DF  .~.~> Condition or direction responsive device
442  DF  .~.~> Device holds output in adjusted position

DEFINITION

Classification: 60/435

(under subclass 325) Apparatus including a releasable device for mechanically securing together or resisting relative movement of two parts of the power train of the apparatus or for mechanically connecting an output member to an input member for direct drive of the output.

(1) Note. A brake or clutch that is operated by the output member of the pressure fluid source motor system is regarded as merely a nominal load for the system and does not make the organization classifiable in this subclass.

(2) Note. A clutch connecting a prime mover to a motive fluid pump has been treated as part of a means controlling input to the pump. See subclasses 423, 431, 433+, etc.

(3) Note. In the absence of a significant pump or other pressure fluid source the combination of a fluid motor and a clutch or brake device is classifiable in Class 91 or 192 in accordance with the line established between these classes by

the search notes in Class 91, subclass 41. It is noted that a pump and turbine making up a vortex flow device combined with a brake or clutch, is classified as indicated in the search notes to subclass 330.