Owatonna Tool Company

James I Masterman

James C Solie

Samuel B McClocklin

Larry D Allard

Michael T Landrum

Jan H Boers

A control valve for controlling the flow of fluid to and from a single-acting cylinder and having a metered flow-controlling valve section and a rotatable valve member movable to four different positions to provide four different operations of the single-acting cylinder, namely: rapid advance, slow metered advance, hold and return.

Control valve

A two-stage pump assembly employs a rotary-type gerotor pump combined with a reciprocating axial piston-type pump both mounted on and driven by a common shaft of a motor. A single key drivingly connects the rotor of the gerotor pump and the angle plate of the axial piston pump to the shaft of the motor for simultaneous operation of the two pumps. A wear sleeve is seated on the shaft of the motor and coacts with an oil seal carried by a common wall between the motor and the gerotor housing to prevent leaking of the fluid being pumped.

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Owatonna, MN, United States of America

James I Masterman