Patents by Inventor Hermann Keck

Hermann Keck 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).

  • Patent number: 4442572
    Abstract: The invention serves to hold together the male and the female parts of ground glass joints.As can be seen from the FIGS. 1,2 and 3 this new device consists of two rings (1+2) concentrically placed one above the other. Both rings are connected on their outside by three bow-shaped retainers (5).The two rings (1+2) have one opening (3,4) each on one side. These allow the rings to be slid onto the male and female parts of a glass joint. Both rings then firmly grip the two parts of the joint and hold them together.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: April 17, 1984
    Inventor: Hermann Keck
  • Patent number: D294330
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: February 23, 1988
    Inventor: Hermann Keck