Patents by Inventor Hermann Leiberich

Hermann Leiberich 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).

  • Fluid flow control valve for dental instruments
    Patent number: 4373699
    Abstract: A fluid flow control valve uses a solenoid to control flow wherein the fluid path extends axially through the core of the solenoid. Flow is variable over the range of 0 to maximum flow and varies linearly with the voltage applied to the solenoid coil.
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: February 15, 1983
    Assignee: Sybron Corporation
    Inventor: Hermann Leiberich
  • Dental syringe
    Patent number: 4363626
    Abstract: A dental syringe employs a single thumb or finger operated control member mounted on the syringe for regulating the flow of air or water or spray. The single control moves axially and vertically with respect to the syringe. Axial movement either forward or rearward from a rest position, initiates and controls the quantity of flow of air or water. Vertical movement of the control member initiates the flow of both air and water to produce a spray.
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: December 14, 1982
    Assignee: Sybron Corporation
    Inventors: Manfred Schmidt, Gerd Hoyer, Hermann Leiberich, Helmut Pietschmann