Hein-werner Corporation

Charles E Naber

Reinald D Liegel

Garry J Sabel

James G Ballard

Leonard F Eck

Craig A Wisner

James C Graham

James B Ballard

A portable work station suitable for use in a vehicle spray paint booth, the station includes a platform member supported on each end by an open frame end support member. The end members pivot about the end of the platform and can be adjusted so as to change the height of the platform above the work surface. A leg of each end support member is wedged between pin, a stop stud fixed to the end of the platform and a locking pin is pivoted into engagement with the leg to prevent walking motion of the work station while in use. The work station can be provided with a railing along the platform edge, a tool hanger, and can be provided with an air supply stanchion to facilitate the spray paint operation.

Portable work station

Hydraulic apparatus including a hydraulic fluid flow control cartridge for controlling hydraulic fluid flow between a hydraulic fluid reservoir and a hydraulic fluid pump and between the hydraulic fluid pump and the hydraulic cylinder, and for permitting relief of hydraulic fluid from the pump to the reservoir in the event the hydraulic fluid pressure in the pump exceeds a selected pressure.

Hydraulic apparatus including a hydraulic fluid flow control cartridge

A side lifting jack having a pneumatically and hydraulically actuated lifting cylinder for raising a lift arm of the side lifting jack. The jack includes a hydraulic fluid reservoir and air pressure is supplied to the hydraulic fluid reservoir to cause hydraulic fluid to be delivered to the lift cylinder. A flow restricting device controls the rate of flow of hydraulic fluid into or out of the hydraulic cylinder and prevents sudden movement of the jack or sudden extension of the lift cylinder assembly in the event that the load on the lift jack is suddenly reduced or removed from the lift jack. The jack also includes a ratch and pawl arrangement to selectively prevent retraction of the piston of the hydraulic cylinder and lowering of the jack.

Pneumatic hydraulic side lifting jack

A hydraulic fluid pump apparatus for use in supplying hydraulic fluid to a hydraulic lift cylinder used tilting the cab of a truck, the hydraulic fluid pump apparatus including a control cartridge for controlling the flow of hydraulic fluid between the fluid reservoir, pump chamber and hydraulic cylinder.

Growing community of inventors

Waukesha, WI, United States of America

Charles E Naber