Method and apparatus for improved height adjustment of wall partitions. According to the present disclosure, an extendable Foot Controlled Elevator Device is placed beneath a wall partition. A user may then apply downward force on a Vertical Height Control to adjust the vertical position of the wall partition. In some embodiments, the Foot Controlled Elevator Device has a compressible base, allowing it to fit into tight areas (e.g., between toilets in a restroom under construction). In other embodiments, one or more Foot Controlled Elevator Devices may be linked, allowing for better control over the wall divider and simultaneous or distinct control of the respective Foot Controlled Elevator Devices.

A lifting device with a head cavity in the lifting member shaped to accept a removable lifting head. The head cavity in the lifting device—e.g., the piston of a bottle jack—may be provided with threads, or may have the threads removed. A yoke fitted on the lifting head provides registration, horizontal restraint, or both against a lifted object, component, or surface to prevent sliding off the lifting head while in use. In a smooth-walled-shaft embodiment, a set of risers (spacers, adjusters, trims, or shims) serves to adjust an extension height of the shaft, elevating the lifting head with respect to the piston prior to beginning to lift the hydraulic piston.

A vehicle includes a chassis and a lift assembly. The chassis includes a frame defining a pair of tow points. The lift assembly includes an adapter assembly and a lift device. The adapter assembly includes a first adapter and a second adapter, each adapter configured to be coupled to one of the pair of tow points, and each adapter defining an adapter aperture, and a cross member extending laterally across the vehicle and received by each adapter aperture. The lift device includes a lift base and a pair of receivers coupled to the lift base and configured to engage with the cross member of the adapter assembly. The pair of receivers support the cross member in a vertical direction. The adapter assembly is configured to receive and redirect a lifting force of the lift device to selectively reconfigure the vehicle between a lowered position and an elevated position.

A vehicle includes a chassis and a lift assembly. The chassis includes a frame defining a pair of tow points. The lift assembly includes an adapter assembly and a lift device. The adapter assembly includes a first adapter and a second adapter, each adapter configured to be coupled to one of the pair of tow points, and each adapter defining an adapter aperture, and a cross member extending laterally across the vehicle and received by each adapter aperture. The lift device includes a lift base and a pair of receivers coupled to the lift base and configured to engage with the cross member of the adapter assembly. The pair of receivers support the cross member in a vertical direction. The adapter assembly is configured to receive and redirect a lifting force of the lift device to selectively reconfigure the vehicle between a lowered position and an elevated position.

A power unit for a hydraulic floor jack is provided having a unitary forged steel manifold engaged with a ram assembly, the ram assembly and manifold being selected from materials and finishes that when interacting with a cylinder bearing, exhibits a longer performance life.

A power unit for a hydraulic floor jack is provided having a unitary forged steel manifold engaged with a ram assembly, the ram assembly and manifold being selected from materials and finishes that when interacting with a cylinder bearing, exhibits a longer performance life.

A pressing device is provided, including: a main body, including a chamber; a pushing assembly, including a retractable mechanism movably inserted within the chamber, a first pushing board connected with the retractable mechanism and a restricting member embedded within the chamber and blocking the retractable mechanism from moving out of the chamber; a hydraulic mechanism, including a tube body which is connected with the main body and communicated with the chamber, a driving rod movably inserted within the tube body and a piston driven by the driving rod, the piston being configured to drive fluid to flow in or out of the chamber. Another pressing device is further provided, differing from the pressing device described above in that: the main body further including a channel, a wall of the chamber including at least one recession which is communicated with the channel.

The invention relates to a lifting device, especially a mobile lifting device, for lifting loads, vehicles or the like, said lifting device comprising a lifting column (14), a support (21) which is guided by the lifting column (14) and on which a load carrying means (22) can be arranged, and a drive unit (18) which can be controlled via a control unit (17) and which moves the support (21) up and down in relation to the lifting column (14). The support (21) has a sleeve-type or bullet-type shape and surrounds at least part of the lifting column (14).

The invention relates to a lifting device, especially a mobile lifting device, for lifting loads, vehicles or the like, said lifting device comprising a lifting column (14), a support (21) which is guided by the lifting column (14) and on which a load carrying means (22) can be arranged, and a drive unit (18) which can be controlled via a control unit (17) and which moves the support (21) up and down in relation to the lifting column (14). The support (21) has a sleeve-type or bullet-type shape and surrounds at least part of the lifting column (14).

An adjustable bladder assembly for use with a closed hydraulic power system is provided. The bladder assembly includes a rigid body and a bladder cover slidably engaged therein. The bladder cover divides an interior area of the bladder assembly into first and second portions. The first portion of the bladder assembly is configured to be in fluid communication with a fluid reservoir of the hydraulic power system, with internal pressure of the hydraulic power system acting on an inner surface of the bladder cover, thereby biasing the bladder assembly towards an inflated configuration. The second portion of the bladder assembly is open to the environment such that ambient air pressure acting on an outer surface of the bladder cover biases the bladder assembly towards a deflated configuration.