Patents Assigned to Fukuhara Seisaku Co., Ltd.
  • System for removing contaminants from an oil tank in a hydraulic device
    Patent number: 4861467
    Abstract: An oil filter device for an oil tank of a hydraulic device in which a drain opening of the oil tank is connected to the inflow passage of the oil filter device by an oil inflow pipe. An oil suction pipe of an oil pressure pump of an oil circulation system in the hydraulic device is connected to the outflow passage of the oil filter device by an oil return pipe. Further, a flow rate throttle is disposed in a preferred position of the oil return pipe.
    Type: Grant
    Filed: June 7, 1988
    Date of Patent: August 29, 1989
    Assignee: Fukuhara Seisaku Co., Ltd.
    Inventor: Hiroshi Fukuhara