Patents Assigned to Walgan Corp.
  • Pen construction
    Patent number: 4221491
    Abstract: A multiple unit writing instrument includes end to end relatively rotatable barrel section housing a body member rotatable with the front barrel section and a cylindrical cam rotatable with the rear barrel section and having in its outer face a longitudinal guide groove extending to the raised portion of the end cam face and slidably engaged by an actuating member. A pair of writing elements are slidable in guideways in the body member between advanced and retracted positions and carry followers engaging guide slots and the cam face.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: September 9, 1980
    Assignee: Walgan Corp.
    Inventor: Walter C. Ganz