Watson & Chalin Manufacturing, Inc.

Watson & Chalin Maufacturing, Inc.

Watson & Chalin Manufacturring, Inc.

Watson & Chain Manufacturing, Inc.

Herbert Hudson

Thomas N Chalin

Cully B Dodd

A steerable suspension system may include a steering knuckle and an actuator, the actuator having an effective piston area which varies in response to rotation of the steering knuckle. A method of stabilizing a steerable suspension system may include applying a first level of pressure, thereby applying a stabilizing force to a steering knuckle and permitting rotation of the steering knuckle, and applying a second level of pressure, thereby preventing rotation of the steering knuckle. Another steerable suspension system may include an axle, a tie rod arm, and a pressure operated actuator interconnected between the tie rod arm and the axle.

Steerable suspension system with centering actuator

An adjustable run height lift axle suspension system includes an axle assembly, an air spring and a lift actuator. A device may be releasably attached to the axle assembly and connected to each of the air spring and the lift actuator, the device spacing the air spring away from the axle assembly. A selected one of multiple devices may be used, the suspension system having one run height when one device is releasably attached to the axle assembly and connected to each of the air spring and the lift actuator, and a different run height when another device is used. The air spring may have approximately the same operational height when the suspension system is at the different run heights.

Adjustable run height lift axle suspension system

A liftable independent suspension system which may also be steerable. In a described embodiment, a liftable suspension system for use on a vehicle includes wheel spindles positioned to extend outwardly at each respective lateral side of the vehicle. The spindles are displaceable independent of each other. An actuator is operable to raise at least one of the spindles, so that a tire rotatably connected to the spindle is liftable out of engagement with a road surface when the actuator raises the spindle.

Steerable and liftable independent suspension system

A suspension system having a composite beam. In a described embodiment, a suspension system for a vehicle having a frame is provided. The suspension system includes an axle and a beam interconnected between the vehicle frame and the axle. The beam has opposite ends, an elongated body extending between the opposite ends, and a metal end connection at one of the opposite ends. The body is made of a composite material.

Suspension system having a composite beam

Dump truck tag axle suspension control. A method of controlling a tag axle suspension includes activating a pusher suspension lift switch; and engaging a steer lock on the tag axle suspension, thereby preventing steering of the tag axle suspension, in response to the lift switch activating step. Another method includes activating a switch to thereby begin operation of a hydraulic pump; and engaging a steer lock of the tag axle suspension, in response to the switch activating step. Yet another method includes applying pressure to a bed lift actuator; sensing the pressure applied to the bed lift actuator; and applying pressure to a tag suspension load actuator, thereby transmitting a load from a frame to a tag axle via the load actuator, in response to the sensed pressure applied to the bed lift actuator reaching a predetermined level.

Dump truck tag axle suspension control

A suspension system having an axle, at least a portion of which is made of a composite material. In a described embodiment, a suspension system includes an axle assembly which has a composite axle portion. Metal spindles are attached at each end of the axle for mounting wheels thereto. Two beams may be attached directly to the composite axle portion, to a sleeve overlying the composite axle portion, or to an axle seat attached to the sleeve or directly to the composite axle portion.

Suspension system having a composite axle

A suspension system for a dump truck which is to be connected to a paver using a truck hitch. In one example, a system for connecting a dump truck to a paver includes a liftable and steerable suspension of the truck, the suspension having an adapter with a laterally outwardly facing concave side. A truck hitch of the paver engages the concave side of the adapter to attach the truck hitch to the suspension. In another example, a method of connecting a dump truck to a paver includes the steps of: interconnecting a hydraulic actuator between a frame of the truck and an axle of a suspension of the truck to thereby transmit a load from the frame to the axle; then raising a bed of the truck, the load increasing as the bed is raised; and increasing pressure in the hydraulic actuator in response to the increasing load.

Suspension system for dump truck/paver truck hitch

A lift axle parallelogram suspension system. In a described embodiment, a suspension system for a vehicle having a generally longitudinally extending frame includes an axle assembly and upper and lower trailing arms. One end of each of the upper and lower arms is attached to the frame at a pivot connection, and an opposite end of the arm is attached to the axle assembly at another pivot connection. Each of the arms is angled laterally outward from the frame as the arm extends from the frame pivot connection to the axle assembly pivot connection.

Growing community of inventors

McKinney, TX, United States of America

Herbert Hudson