A gripping device for an endoscope insertion tube utilizing first and second arms that are hingedly attached to one another. Each arm includes an opening to accommodate the insertion tube of an endoscope such that the endoscope insertion tube spans both arms. First and second jaws are associated with first and second arms and are positioned in opposition to one another. The movement of the arms toward one another causes the jaws to engage the insertion tube which is guided through the arms by the apertures found in the arms.

A flow control valve by bending a pipeline comprises: a motor; a driving device having one end connecting to a spindle of the motor; the spindle of the motor serving to drive the driving device; another end of the driving device being connected to a pipeline connection device for retaining a flexible pipeline; wherein when the motor is actuated, the spindle of the motor drives the driving device so that the driving device moving along a fan shape section to drive the pipeline to bend to be formed as a bending section; as a result, the pipeline is bent to form an angle along the bending section; the bending of the pipeline confines flow rates of the fluid within the pipeline, in an extreme state, it is possible that the flow rate is reduced to zero.

A flow control valve by bending a pipeline comprises: a motor; a driving device having one end connecting to a spindle of the motor; the spindle of the motor serving to drive the driving device; another end of the driving device being connected to a pipeline connection device for retaining a flexible pipeline; wherein when the motor is actuated, the spindle of the motor drives the driving device so that the driving device moving along a fan shape section to drive the pipeline to bend to be formed as a bending section; as a result, the pipeline is bent to form an angle along the bending section; the bending of the pipeline confines flow rates of the fluid within the pipeline, in an extreme state, it is possible that the flow rate is reduced to zero.

A pinch valve can include a finger guard or tubing retainer for blocking at least a portion of a tube slot. A headpiece for a pinch valve can include a tube slot for receiving tubing and can be adapted to couple with a guard. A guard can include a base and an extension and can be removably coupled to a headpiece. The extension can be adapted to block at least a portion of a tube slot.

A pinch valve can include a finger guard or tubing retainer for blocking at least a portion of a tube slot. A headpiece for a pinch valve can include a tube slot for receiving tubing and can be adapted to couple with a guard. A guard can include a base and an extension and can be removably coupled to a headpiece. The extension can be adapted to block at least a portion of a tube slot.

Some embodiments include a fluid valve assembly with an outlet base dimensioned to be positioned through a drain in a fluid tank, and a float assembly including a moveable float. The moveable float can form a fluid-tight seal at a first end when the moveable float is coupled to the outlet base, and a flow opening when the moveable float is at least partially decoupled from the outlet base. Some embodiments include a housing positioned with the moveable float, where the housing encloses a suction device coupled to a moveable piston. Some embodiments include an actuable diaphragm positioned in the outlet base, and a compressed air tube or passageway coupled to one side the actuable diaphragm. In some embodiments, the actuable diaphragm is configured and arranged to be actuated by compressed air to move the moveable piston.

Some embodiments include a fluid valve assembly with an outlet base dimensioned to be positioned through a drain in a fluid tank, and a float assembly including a moveable float. The moveable float can form a fluid-tight seal at a first end when the moveable float is coupled to the outlet base, and a flow opening when the moveable float is at least partially decoupled from the outlet base. Some embodiments include a housing positioned with the moveable float, where the housing encloses a suction device coupled to a moveable piston. Some embodiments include an actuable diaphragm positioned in the outlet base, and a compressed air tube or passageway coupled to one side the actuable diaphragm. In some embodiments, the actuable diaphragm is configured and arranged to be actuated by compressed air to move the moveable piston.

A flow control valve by bending a pipeline comprises: a motor; a driving device having one end connecting to a spindle of the motor; the spindle of the motor serving to drive the driving device; another end of the driving device being connected to a pipeline connection device for retaining a flexible pipeline; wherein when the motor is actuated, the spindle of the motor drives the driving device so that the driving device moving along a fan shape section to drive the pipeline to bend to be formed as a bending section; as a result, the pipeline is bent to form an angle along the bending section; the bending of the pipeline confines flow rates of the fluid within the pipeline, in an extreme state, it is possible that the flow rate is reduced to zero.

A flow control valve by bending a pipeline comprises: a motor; a driving device having one end connecting to a spindle of the motor; the spindle of the motor serving to drive the driving device; another end of the driving device being connected to a pipeline connection device for retaining a flexible pipeline; wherein when the motor is actuated, the spindle of the motor drives the driving device so that the driving device moving along a fan shape section to drive the pipeline to bend to be formed as a bending section; as a result, the pipeline is bent to form an angle along the bending section; the bending of the pipeline confines flow rates of the fluid within the pipeline, in an extreme state, it is possible that the flow rate is reduced to zero.

A refrigerator includes a main body, a dispenser configured to supply water to the outside of the main body, a water supply flow path connecting the dispenser to a water source; and a valve assembly disposed on the water supply flow path, wherein the valve assembly comprises an elastic member having an outlet whose diameter is reduced by an elastic force, when water is no longer supplied to the valve assembly, so that water remaining in the inside of the water supply flow path is kept by the surface tension of the water.