Gm Global Technolgoy Operations, Inc.

Other

Joel R Wells

Daniel P Zaenglein

James M Pees

Claude H Cheatham

Thomas N Tiller

George T Claude

A construction form system comprising a plurality of construction forms each including a form sheet having a face side, a back side and a support section defined there between and a connection edge, a side frame for supporting the form sheet, the side frame having a face section and a wall section wherein the face section cooperatively mates with the connection edge of the form sheet to provide a form surface, at least one ladder extending from a side of the side frame to an opposite side of the side frame, and a plurality of brackets attached to the side frame adapted to support the form sheet and wherein the form sheet is free floating within the side frame to protect the form sheet from damage in operation such that at least one of the brackets is used to connect one side frame of one construction form to another side frame of another construction form.

Construction form system

A suspension damper of the monotube gas charged shock type includes mating piston and rod guide assemblies and mating piston and gas cup assemblies wherein the extension and compression travel of the damper is maximized. The piston includes an annular skirt with a lower rebound cutoff element. The rod guide assembly includes twin spaced apart bushing assemblies providing lateral support to the piston rod, a lower annular leg and an upper rebound cutoff element. When the damper is in a fully extended position, the lower annular leg is received within the upper rebound cutoff element and the upper rebound cutoff element is received within the annular skirt of the piston assembly.

Monotube damper

A suspension damper includes an integral one-piece reservoir tube arrangement which provides a self-centering feature for the internal components of the damper, supports the loading on those internal components for proper functioning of the twin-tube type damper and applies for a preload force through the internal components.

Suspension damper

A piston and piston rod subassembly for use with a hydraulic damper is disclosed. The piston is formed from a substantially flat blank having a pattern of bendable tabs provided along a first edge. A bendable skirt is provided along a second edge of the blank. After the blank is formed into a cylindrical body, the tabs are crimped onto a flanged end of a piston rod. A valve assembly can be retained in the cylindrical body by crimping the skirt over the valve assembly.

Method of forming and assembling a piston for a hydraulic damper

Piston and piston rod subassembly for a hydraulic damper

A compression valve assembly includes a valve cage having a stem at a first end and an annular skirt at a second end. The skirt is provided with a slidable surface. A relief valve is adapted for selectively blocking fluid flow through the valve cage. A cup includes an annular rim and a base. The rim is provided with a slidable surface. A spring biased agaist the relief valve is selectively compressed as the cup rim is slidably received over the skirt by a measured axial load provided by a preloading means. The cup is secured to the valve cage and the axial load is removed.

Preloaded compression valve and method for a hydraulic damper

A load cell exerts a force on a loose spring cage of a rebound spring to displace the cage and hold it in position on the piston of a hydraulic damper unit until it is welded in position. This preloads the rebound spring to close tolerance so that rebound valve operation is constant regardless of variation in spring sizes, rates and stack up heights of valve components.

Preloaded piston valving for hydraulic dampers and method of assembling

A modular piston having a high tensile strength piston and rod connection produced without lubrication, weld splatter or other contaminants. The method produces an optimized joint from strength, concentricity and cleanliness standpoints. The parts are centered and connected in the same operation. With this connection an elastomeric bumper and bumper containment plate are retained in position for a complete assembly.

Growing community of inventors

Huber Heights, OH, United States of America

Joel R Wells