A pump system including a pump, an inflow cassette and an outflow cassette. The inflow cassette has a damping flexible membrane covering a damping region configured to dampen pressure pulsations in washing fluid passing through the damping region. The pump has a plurality of individually actionable pressing members that can each be individually actuated to pinch one of a plurality of suction tubes of the outflow cassette to at least partially prevent fluid flow through the one of the plurality of the suction tubes.

An air maintenance system includes a rotating inner ring secured to a vehicle wheel, a stationary outer ring maintaining a constant angular position, an occlusion roller rotationally fixed to the stationary outer ring, the occlusion roller having a protruding portion centered axially at a radially outer surface of the occlusion roller with axially outer portions of the occlusion roller being radially recessed from the protruding portion and supported by bearing surfaces of the rotating inner ring, spacer rollers rotationally fixed to the stationary outer ring and rotationally supported by the bearing surfaces, and a flexible tube defining a pump cavity, the air maintenance system pumping a fluid from the ambient environment into a pneumatic tire by applying an occluding force against the flexible tube, periodically occluding portions of the pump cavity. The spacer rollers have axially outer surfaces for rotational support by bearing surfaces of the rotating inner ring and a recess centered axially at the outer surface of the spacer rollers for avoiding any contact between the spacer rollers and the flexible tube.

A pump system including a pump, an inflow cassette and an outflow cassette. The inflow cassette has a damping flexible membrane covering a damping region configured to dampen pressure pulsations in washing fluid passing through the damping region. The pump has a plurality of individually actionable pressing members that can each be individually actuated to pinch one of a plurality of suction tubes of the outflow cassette to at least partially prevent fluid flow through the one of the plurality of the suction tubes.

A pump system including a pump, an inflow cassette and an outflow cassette. The inflow cassette has a damping flexible membrane covering a damping region configured to dampen pressure pulsations in washing fluid passing through the damping region. The pump has a plurality of individually actionable pressing members that can each be individually actuated to pinch one of a plurality of suction tubes of the outflow cassette to at least partially prevent fluid flow through the one of the plurality of the suction tubes.

Disclosed is a cup washer. The cup washer of the present disclosure includes an additive storage part and an additive supply part. The additive storage part is configured to store an additive in a storage space. The additive supply part is configured to supply the additive into the tub. The additive supply part includes an additive pump and a first additive supply pipe. The additive pump is located below the additive storage part. The first additive supply pipe connects the lower portion of the additive storage part to the inlet of the additive pump. The first additive supply pipe is configured to provide a first supply passage through which the additive of the additive storage part moves toward the inlet of the additive pump. The first additive supply pipe and the inlet are connected to each other at a predetermined angle.

Disclosed is a fluid isolating pump. The fluid isolating pump includes a rotating cage, one or more roller assemblies mounted on the rotating cage, a cam plate, and a non-rotating central shaft. The cage includes a front plate and a back plate connected by multiple connecting rods. Each roller assembly is rotatably attached to a corresponding connecting rod of the cage. Each roller assembly includes one or more arms rotatably attached to the connecting rod, a connecting bar coupled to the one or more arms, one or more levers rotatably attached to the connecting rod, one or more suspensions, and a roller. Each suspension is coupled to at least one arm and to at least one lever. The roller is coupled to the one or more levers. The cam plate includes multiple openings having a first end and a second end. The connecting rod of each roller assembly is configured to slide from the first end of the opening to the second end of a corresponding opening.

A peristaltic pump is provided herein including: a rotatable drive plate; a closed-loop channel; a fluid inlet located at a first location along the channel; a fluid outlet located at a second location along the channel, spaced from the first location, wherein a first portion of the channel extends between the fluid inlet and the fluid outlet, and a second portion of the channel, separate from the first portion of the channel, extends between the fluid outlet and the fluid inlet; a flexible membrane extending between, and fluidically connecting, the fluid inlet and the fluid outlet, the flexible membrane defining a closed fluid path between the fluid inlet and the fluid outlet along the first portion of the channel; and, a first roller captively disposed between the channel and the drive plate such that rotation of the drive plate causes the first roller to traverse the channel, the first roller causing downward deflection of the flexible membrane in passing therealong to constrict the closed fluid path in displacing fluid within the closed fluid path from the fluid inlet to the fluid outlet. Advantageously, the subject invention provides a planar peristaltic pump having a drive plate overlaying the fluid path allowing for top-down assembly with parts assembled along a single vertical axis.

Disclosed is a cup washer. The cup washer of the present disclosure includes an additive storage part and an additive supply part. The additive storage part is configured to store an additive in a storage space. The additive supply part is configured to supply the additive into the tub. The additive supply part includes an additive pump and a first additive supply pipe. The additive pump is located below the additive storage part. The first additive supply pipe connects the lower portion of the additive storage part to the inlet of the additive pump. The first additive supply pipe is configured to provide a first supply passage through which the additive of the additive storage part moves toward the inlet of the additive pump. The first additive supply pipe and the inlet are connected to each other at a predetermined angle.

An apparatus for facilitating control of fluid or slurry movement in a collapsible tube is provided. The apparatus includes the tube. The tube includes first and second opposing wall portions having circumferentially varying thickness including first and second maximum thicknesses respectively, the first and second maximum 5 thicknesses disposed on opposite sides of the tube, and third and fourth opposing wall portions between the first and second opposing wall portions, the third and fourth opposing wall portions having third and fourth circumferentially minimum thicknesses respectively, the third and fourth minimum thicknesses disposed on opposite sides of the tube about halfway between the first and second maximum thicknesses. 10 wherein the first and second opposing wall portions are configured to be engaged by a tube engager to cause the tube to fold at the third and fourth minimum thicknesses to seal the tube. Other apparatuses, systems, and methods are disclosed.