US PATENT SUBCLASS 474 / 48
.~ Nestable rims of diverse kind (e.g., one grooved and the other cylindrical, etc.)

Current as of: June, 1999
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474 /   HD   ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS

47  DF  PULLEY WITH EXPANSIBLE RIM MEANS OR PULLEYS WITH ALTERNATELY USEABLE NESTABLE RIMS {2}
48.~ Nestable rims of diverse kind (e.g., one grooved and the other cylindrical, etc.)

DEFINITION

Classification: 474/48

Nestable rims of diverse kind (e.g., one grooved and the other cylindrical, etc.):

(under subclass 47) Subject matter wherein at least two of plural alternately useable pulleys* are different kinds of pulleys, the different kinds being: (a) those having a cylindrical belt-engaging surface, (b) those having a circumferentially grooved belt-engaging surface, or (c) those having circumferentially spaced belt-engaging teeth. [figure]