US PATENT SUBCLASS 474 / 41-- .~.~.~ By opposite-handed screw threads engaging adjacent members

US PATENT SUBCLASS 474 / 41
.~.~.~ By opposite-handed screw threads engaging adjacent members

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999 Terms of Use

474 /	HD	ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS

8	DF	PULLEY WITH BELT-RECEIVING GROOVE FORMED BY DRIVE FACES ON RELATIVELY AXIALLY MOVABLE COAXIAL CONFRONTING MEMBERS (E.G., EXPANSIBLE CONE PULLEY, ETC.) {13}
37	DF	.~ By manual actuator for one or both confronting members {2}
39	DF	.~.~ Screw actuated {3}
41		.~.~.~ By opposite-handed screw threads engaging adjacent members

DEFINITION

Classification: 474/41

By opposite-handed screw threads engaging adjacent members:

(under subclass 39) Subject matter wherein each of the relatively axially adjustable components includes helical threads cooperating with helical threads of the relatively rotatable member, the helical threads being so arranged that relative rotation between the threaded members causes both components to move simultaneously axially toward each other or both to move simultaneously axially away from each other depending on the direction of rotation. [figure]