Abstract: The present invention provides a two-position and three-way valve system having a fluid supply port, a fluid inlet port and a fluid outlet port, the valve system being characterized by a first section connecting the fluid supply port with the fluid inlet port, a second section connecting the fluid outlet port with the fluid inlet port, a valve device including a valve member mounted in each of the first and second sections to open or close a flow passage associated therewith, and an actuator mounted to actuate each of the valve members in an independent manner, the actuator means being rapidly operable in response to a control signal.

Abstract: The present invention provides a two-position and three-way valve system having a fluid supply port, a fluid inlet port and a fluid outlet port, the valve system being characterized by a first section connecting the fluid supply port with the fluid inlet port, a second section connecting the fluid outlet port with the fluid inlet port, a valve device including a valve member mounted in each of the first and second sections to open or close a flow passage associated therewith, and an actuator mounted to actuate each of the valve members in an independent manner, the actuator means being rapidly operable in response to a control signal.

Abstract: A cleaning roller rotatably driven to wipe off a liquid cleaner applied to a floor by an applying roller includes a core rotatably supportable at the opposite ends thereof and a resilient body mounted about the core and having one end inwardly spaced away from each of the opposite ends of the core, the external diameter of the resilient body progressively increasing from each of the opposite ends of the resilient body toward the central portion thereof.

Abstract: The present invention provides a bowling lane maintenance apparatus of applying a conditioning oil to the surface of a bowling lane and then buff finishing the oil applied bowling lane surface, said maintenance apparatus including a body, a box member pivotally mounted on said body and including a pair of parallel spaced side plates, oil applicator and buffing rollers rotatably supported within said box member perpendicular to said side plates and disposed on the opposite sides about the pivot, and a positioning air cylinder mechanism operably interposed between said body and one edge of said box member at its longitudinal center, said positioning air cylinder mechanism being adapted to pivot said box member such that one of said oil applicator and buffing rollers will be brought into contact with the surface of the bowling lane or both the rollers will be separated from the bowling lane surface.