United Technologies Motor Systems, Inc.

Dayco Products, Inc.

Daniel P Bexten

James L Mitchell

David W Welch

Larry S Shannon

A wiper arm (30) for a vehicle windshield wiper assembly (14) has at least a section along its longitudinal extent formed of a longitudinally extending base portion (80) and two spaced side walls (82,84) extending outwardly along opposite sides of the base portion (80) to form an open channel (85). A spray nozzle (70i is disposed in the outboard portion of the wiper arm (30) and a fluid delivery tube (60) extends longitudinally along the wiper arm (30) to deliver wash fluid from a supply to the spray nozzle (70). The outboard edges (86,88) of the outwardly sidewalls (82,84) are folded inwardly towards each other to partially close the open face (87) of the channel (85), thereby retaining the fluid delivery tube (60), which is freely disposed, within the channel.

Windshield wiper arm assembly with fluid tube

A multi-speed, direct current motor (120) incorporates a high speed (24) brush disposed between the low speed (22) and the common ground (26) brushes and having a non-arcuate end face (25) which, unlike the conventional arcuate brush end face (23,27), is not subject to speed-drift erosion. The non-arcuate end face (25) is configured of two offset surfaces (55,65 & 57,67) which intersect to provide a line of contact (43) between the end face (25) of the high speed brush (24) and the commutator (40) which is displaced from the center line of the high speed brush (24) in a direction counter to the direction of rotation of the motor, that is toward the leading edge (21) of the brush (24). The intersecting surfaces (55,65 & 57,67) may comprise either flat planar surfaces or contoured surfaces.

Commutator brush

The connecting link is manufactured from an elongated hollow extrusion of aluminum, which can be cut to any desired length and bent, as required. Molded plastic coupling members have tongues which are inserted into the open ends of the hollow extrusion and crimped in place to hold them securely. The coupling members have integrally formed socket structures to receive complementary ball structures which form the pivot connections of the wiper system.

Connecting links for windshield wipers and method for fabricating the

Multi-speed motor

A method of making a belt tensioner system, in which the system comprises a support unit, an endless transmission belt construction carried by the support unit and arranged to move in an endless path, an arm pivotally mounted to the support unit, a pulley rotatably carried by the arm and being in engagement with the belt construction, and an actuator carried by the support unit and having opposed ends is provided. The actuator has a movable piston projecting out of one of the opposed ends thereof and being in engagement with the arm to pivot the arm in a direction to urge the pulley into the belt construction as the piston is extended outwardly from the one end of the actuator, the other of the opposed ends of the actuator being pivotally mounted to the support unit whereby the actuator pivots relative to the support unit as the piston thereof extends and retracts at the one end thereof.

Method of making a belt tensioning system

A belt tensioning system, tensioner and parts therefor and methods of making the same are provided, the system comprising a support unit, an endless transmission belt construction carried by the support unit and arranged to move in a certain path, an arm pivotally mounted to the support unit, a pulley rotatably carried by the arm and being in engagement with the belt construction, and an actuator carried by the support unit and having opposed ends, the actuator having a movable piston projecting out of one of the opposed ends thereof and being in engagement with the arm to pivot the arm in a direction to urge the pulley into the belt construction as the piston is extended outwardly from the one end of the actuator, the other of the opposed ends of the actuator being pivotally mounted to the support unit whereby the actuator pivots relative to the support unit as the piston thereof extends and retracts at the one end thereof.

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Columbus, MS, United States of America

Daniel P Bexten