US PATENT SUBCLASS 180 / 305
.~ Including traction motor of kind driven by noncompressible fluid received under pressure from a pump

Current as of: June, 1999
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180 /   HD   MOTOR VEHICLES

54.1  DF  POWER {19}
305.~ Including traction motor of kind driven by noncompressible fluid received under pressure from a pump {3}
306  DF  .~.~> Vehicle includes another system operated by same fluid
307  DF  .~.~> Having variable displacement type motor or pump
308  DF  .~.~> Having separate motor for each driven, surface-engaging member

DEFINITION

Classification: 180/305

Including traction motor of kind driven by noncompressible fluid received under pressure from a pump:

(under subclass 54.1) Vehicle wherein the apparatus for producing power includes at least one motor of a type operated by a fluid which is not appreciably reducible in volume (e.g., a liquid), and which is supplied to the motor in a pressurized state by a pump, for imparting vehicle-propelling movement to one or more surface-engaging members of the vehicle.

(1) Note. The pump may or may not be claimed.

(2) Note. The pump is intended to be driven by the power plant (e.g., an internal combustion engine) of the vehicle which power plant frequently is not claimed.

(3) Note. The pump and motor of this subclass may constitute components of a device designated as a "hydro-static transmission".

SEE OR SEARCH THIS CLASS, SUBCLASS:

242+, for a motor vehicle having four wheels driven and wherein the means for driving one or more of the wheels may be a fluid motor.

291+, as explained in subclass 301 above. 367, for other types of fluid drives combined with motor vehicles structure.

SEE OR SEARCH CLASS

60, Power Plants,

325+, for a power plant consisting of a source of fluid under pressure and a motor driven by the fluid.