Patents Assigned to Geyer & Co.
  • Expandable core for injection molding
    Patent number: 4130264
    Abstract: An expandable core for forming an internal recess in a molded part, composed of a stationary core pin having a generally conical outer surface and a segmented sleeve composed of two groups of lateral slides disposed around the pin with the slides of one group alternating with the slides of the other group. The conicity of the pin outer surface and the slide guidance along the pin are identical for all slides of the same group but are different from one group to the other.
    Type: Grant
    Filed: October 26, 1977
    Date of Patent: December 19, 1978
    Assignee: Geyer & Co.
    Inventor: Peter Schroer