Patents Assigned to Webster Electric Co.,Inc.
  • Rotary-action directional control valve
    Patent number: 4836249
    Abstract: An improved rotary-action directional flow control valve for hydraulic hydraulic motors and the like. The valve provides pressure-compensating constant flow in one or both directions. The valve has a main spool rotatable within a valve body to plural positions to determine flow direction, and one or more inner spools or the like in cavities within the main spool to provide the pressure-compensating. A plurality of spool voids and orifices form, with the valve body, flow channels between ports in the valve body.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: June 6, 1989
    Assignee: Webster Electric Co.,Inc.
    Inventor: Ronald R. LaPointe