Patents Assigned to Chicago Commutator, Inc.
  • Dual pump colorant dispenser
    Patent number: 4027785
    Abstract: A colorant dispenser for the custom blending of paint has a canister with two measuring piston pumps of different capacities, all mounted on a base; and a single barrel valve in the base controls the flow of colorant to and from both pumps and the discharge of colorant from both pumps through a single exit port.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: June 7, 1977
    Assignee: Chicago Commutator, Inc.
    Inventors: Keith G. Edstrom, Gene K. Edstrom