Patents by Inventor Samuel Charles Henry Smith

Samuel Charles Henry Smith has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Injection moulding machines
    Patent number: 4013392
    Abstract: In an injection moulding machine comprising two relatively movable platens each carrying a mould part, a stop means is provided which, in a first condition, defines a limit to the relative approach movement of the platens, and in a second condition permits further relative approach movement of the platens, means being provided to change the condition of the stop means from the first to the second condition at a predetermined instant after interruption of the relative approach movement of the platens by the stop means.
    Type: Grant
    Filed: May 3, 1974
    Date of Patent: March 22, 1977
    Assignee: G.K.N. Windsor Limited
    Inventor: Samuel Charles Henry Smith