Patents by Inventor John H. Oehler

John H. Oehler 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).

  • Rechargeable fluid driven dental tool
    Patent number: 4445860
    Abstract: A rechargeable fluid driven dental tool. A hand piece includes a hollow handle forming a container chargeable with a liquefied gas. A rotatable turbine mounted in the head of the tool is connected by means of a passage to the container of liquefied gas. A control valve extending into the passage controls the amount of gas flow to the turbine with a pressure relief valve limiting maximum liquid flow and allowing the liquefied gas to change to gas for driving the turbine.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: May 1, 1984
    Inventor: John H. Oehler