The inflatable scaffolding is a self-erecting structure that forms a raised working platform similar to a scaffolding. The inflatable scaffolding comprises a plurality of inflatable bladders, a flooring, a guarding, a ladder, and a pump. The plurality of inflatable bladders is a stack of bladders. When pressurized air provided by the pump inflates one or more bladders selected from the plurality of bladders, the span of the distance of the vertical height is increased. The flooring and the guarding are located on the surface of the plurality of inflatable bladders distal from the supporting surface. When each of the one or more selected bladders is fully inflated, flooring and the guarding form a raised working platform that is similar to the structure commonly referred to as scaffolding. To erect the scaffolding to it greatest vertical height, all the inflatable bladders contained within the plurality of inflatable bladders are inflated.

A process system of performing a fabrication process on a wafer includes a wafer storage cassette, process chambers, a transfer chamber having a body and a lid that detachably covers the body, a frame configured to support the transfer chamber, and a lifting tool connected to the lid and extended from the lid over a portion of the frame. The body of the transfer chamber is connected to the wafer storage cassette and the plurality of process chambers so that the wafer is transferred from the wafer storage cassette through the body of the transfer chamber to one of the process chambers.

A process system of performing a fabrication process on a wafer includes a wafer storage cassette, process chambers, a transfer chamber having a body and a lid that detachably covers the body, a frame configured to support the transfer chamber, and a lifting tool connected to the lid and extended from the lid over a portion of the frame. The body of the transfer chamber is connected to the wafer storage cassette and the plurality of process chambers so that the wafer is transferred from the wafer storage cassette through the body of the transfer chamber to one of the process chambers.

The present disclosure provides a hydraulic lifting support, washing machine and controlling method. The hydraulic lifting support comprises a hydraulic support, a communicating device and a liquid storage device. The hydraulic support comprises a fix section installed at a bottom of a household appliance, a movable adjustment section sleeved with the fix section and axially movable relative to the fix section; an accommodation chamber is arranged between the fix section and the movable adjustment section; at least two hydraulic supports and a liquid storage device are communicated with each other by a communicating device; the hydraulic medium flows between the hydraulic supports along with the pressure changing, and the hydraulic medium drives the movable adjustment section to move axially for leveling under pressure; the hydraulic medium is injected into/sucked from the hydraulic supports through the liquid storage device to control the lifting and lowering adjustment of the hydraulic supports.

The present disclosure provides a hydraulic lifting support, washing machine and controlling method. The hydraulic lifting support comprises a hydraulic support, a communicating device and a liquid storage device. The hydraulic support comprises a fix section installed at a bottom of a household appliance, a movable adjustment section sleeved with the fix section and axially movable relative to the fix section; an accommodation chamber is arranged between the fix section and the movable adjustment section; at least two hydraulic supports and a liquid storage device are communicated with each other by a communicating device; the hydraulic medium flows between the hydraulic supports along with the pressure changing, and the hydraulic medium drives the movable adjustment section to move axially for leveling under pressure; the hydraulic medium is injected into/sucked from the hydraulic supports through the liquid storage device to control the lifting and lowering adjustment of the hydraulic supports.

Embodiments described herein relate to a self-extending/retracting gate for a platform. In one embodiment, safety gate includes a housing that extends laterally from a back support attached to the platform. The gate includes a sliding member that is operable to retract at least partially into the housing toward the back support to substantially conceal the sliding member within the housing and provide an opening beyond the housing for users to access the platform and to extend from an opening of the housing away from the back support to block access to the platform while the housing supports the sliding member. The gate includes a gate movement assembly within the housing between a rear portion of the sliding member and the back support. The gate movement assembly is operable to cause the sliding member to extend from the housing and retract into the housing according to a height of the platform.

A door lifting device comprises a base plate, a fulcrum extending perpendicularly from the base plate, and a balance beam having a first end and a second end pivotally connected on the fulcrum. The balance beam includes a foot plate attached to the first end of the balance beam, and a door carriage attached to the second end of the balance beam. The balance beam can be adjusted to a selected height relative to the base plate. When the selected height of the balance beam relative to the base is increased, the pivot point is increased relative to the base plate. The balance beam can further, based on the selected height, be pivoted from a first location to a second location such that the door. When the pivot point is shifted away from the door carriage to the second position from the first position on the balance beam, the height of the door carriage relative to the surface is adjusted from the first height to the second height.

A door lifting device comprises a base plate, a fulcrum extending perpendicularly from the base plate, and a balance beam having a first end and a second end pivotally connected on the fulcrum. The balance beam includes a foot plate attached to the first end of the balance beam, and a door carriage attached to the second end of the balance beam. The balance beam can be adjusted to a selected height relative to the base plate. When the selected height of the balance beam relative to the base is increased, the pivot point is increased relative to the base plate. The balance beam can further, based on the selected height, be pivoted from a first location to a second location such that the door. When the pivot point is shifted away from the door carriage to the second position from the first position on the balance beam, the height of the door carriage relative to the surface is adjusted from the first height to the second height.

The linear actuator comprises upper and lower frame portions vertically movable relative to one another along a central axis, and first and second bands that intertwine to form an extractable and retractable column. The second band forms the wall of the vertical column, and it is the second band that is supported by a rotor that is rotatably carried by the lower frame portion, to reduce the mechanical stress on the first band.

A battery replacement apparatus includes: a battery replacement station including a floor on which an electrically powered vehicle can be stopped; a battery mounting table on which the first battery and the second battery can be mounted and which is movable below the electrically powered vehicle in a vertical direction; and a raising and lowering unit movable below the electrically powered vehicle in the vertical direction independently of the battery mounting table. The raising and lowering unit is movable between a raised position to which at least a part of the electrically powered vehicle has been moved upward from the floor, and a separated position separated downward from the electrically powered vehicle. The battery mounting table is capable of moving up to a position where the battery mounting table contacts a bottom surface of the first battery when the raising and lowering unit is located at the raised position.