Patents Assigned to Sanuki Kogyo Co., Ltd.
  • Liquid supplying device for use in physical and chemical apparatus
    Patent number: 5447691
    Abstract: A liquid supplying device has liquid supplying piston pumps driven by turns for drawing up liquids contained in chemical vessels through liquid intake passages and sending out the liquids to an analyzer or other inspection apparatus through liquid outlet passages. The liquid intake and outlet passages have change-over valves controlled by an automatic sequence controller so as to send out alternately the liquids in the properly mixed state to the analyzer without pulsation of flow.
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: September 5, 1995
    Assignee: Sanuki Kogyo Co., Ltd.
    Inventor: Sannosuke Sanuki
  • Liquid supplying device for use in physical and chemical apparatus
    Patent number: 5308583
    Abstract: A liquid supplying device has liquid supplying piston pumps driven by turns for drawing up liquids contained in chemical vessels through liquid intake passages and sending out the liquids to an analyzer or other inspection apparatus through liquid outlet passages. The liquid intake and outlet passages have change-over valves controlled by an automatic sequence controller so as to send out alternately the liquids in the properly mixed state to the analyzer without pulsation of flow.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: May 3, 1994
    Assignee: Sanuki Kogyo Co., Ltd.
    Inventor: Sannosuke Sanuki
  • Dual plunger pump system
    Patent number: 5199857
    Abstract: Two plungers in the dual plunger pumps are selectively operated by either short-stroke cams or long-stroke cams which are disposed on a rotary drive shaft. When rotating the rotary drive shaft in one direction, the long-stroke cams are driven to operate the plungers with a large stroke. When the drive shaft rotates in the reverse direction, the long-stroke cams run idle by way of a one-way clutch disposed between the drive shaft and the long-stroke cams, while the short-stroke cams are driven to operate the plungers with a small stroke.
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: April 6, 1993
    Assignee: Sanuki Kogyo Co., Ltd.
    Inventor: Sannosuke Sanuki