Patents Assigned to "Wefoba" Werkzeug-und Formenbau Gesellschaft m.b.H. Co. KG
  • Counterblowing machine hammer
    Patent number: 4142397
    Abstract: A counterblow machine hammer, which is pneumatically operated and in which he tups are hydraulically returned and at their rear end protrude into compressed air chambers, which are interconnected and by a pressure-regulating valve are constantly connected to a compressed air system. The impact energy of the tups is controlled by the air pressure in the air chambers.
    Type: Grant
    Filed: October 5, 1977
    Date of Patent: March 6, 1979
    Assignee: "Wefoba" Werkzeug-und Formenbau Gesellschaft m.b.H. Co. KG
    Inventor: Othmar Heimel