Garry J. Sabel - Milwaukee WI Reinald D. Liegel - Waukesha WI Charles Naber - Waukesha WI
Assignee:
Hein-Werner Corporation - Waukesha WI
International Classification:
B62D 3308 F04B 2106
US Classification:
180 8915
Abstract:
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.
Reinald D. Liegel - Waukesha WI Garry J. Sabel - Milwaukee WI
Assignee:
Hein-Werner Corporation - Waukesha WI
International Classification:
B66F 322
US Classification:
254122
Abstract:
An adjustable support device comprising a first elongated member having an upper end, a second elongated member having an upper end, a mechanism for connecting the first member to the second member such that the upper ends of the first and second members are vertically, adjustably movable in response to movement of the first elongated member with respect to the second elongated member, and a ratch connected between a first point located on the first member and a second point located on the second member for releasably securing the first and second points in spaced relationship and for selectively varying the spacing between the first and second points.
Leonard Eck - McPherson KS Reinald D. Liegel - Waukesha WI Charles Naber - Waukesha WI Garry J. Sabel - South Milwaukee WI
Assignee:
Hein-Werner Corporation - Waukesha WI
International Classification:
B66F 300
US Classification:
254 8B
Abstract:
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.
Nick Skover - Dousman WI Garry J. Sabel - Milwaukee WI
Assignee:
Applied Power Inc. - Milwaukee WI
International Classification:
F15B 1522
US Classification:
91408
Abstract:
A system for resiliently supporting a load at a reference height includes a hydraulic cylinder for resiliently supporting a load about a reference height and an accumulator which cooperates with the cylinder for flowing hydraulic fluid therebetween in response to varying loads imposed on the cylinder. A valve is provided for dampening the rate of fluid flowing between the cylinder and the accumulator and a metering valve coacts with the cylinder for adjusting the reference height about which the load is supported.