Patents by Inventor Douglas M. Reinhart

Douglas M. Reinhart 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).

  • Flow control valve assembly for syringes
    Patent number: 5045055
    Abstract: A sterilizable medical/dental syringe having a handle with a nozzle at one end is provided with means for releasably coupling the other end of the handle to a flexible supply hose providing compressible gases and/or noncompressible liquids. When disconnected from the flexible hose supply line, automatic sealing valves prevent the contents of the supply line from escaping. A readily repairable flow control valve for the nozzle is also disclosed.
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: September 3, 1991
    Assignee: Den-Tal-Ez, Inc.
    Inventors: Donald I. Gonser, Douglas M. Reinhart
  • Miniature hand-held spot source of illumination
    Patent number: 5003434
    Abstract: A miniature hand-held spot source of illumination particularly suited for use by health professionals to view and operate upon a patient's anatomy. The spot-source includes a handle with a tool mounted at its proximal end and a source for projecting light into the vicinity of the tool. The spot source is color corrected to enhance viewability under variety of ambient lighting conditions.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: March 26, 1991
    Assignee: Den-Tal-Ez, Inc.
    Inventors: Donald I. Gonser, Douglas M. Reinhart
  • Sterilizable syringe
    Patent number: 4957483
    Abstract: A sterilizable medical/dental syringe having a handle with a nozzle at one end is provided with means for releasably coupling the other end of the handle to a flexible supply hoses providing compressible gases and/or noncompressible liquids. When disconnected from the flexible hose supply line, automatic sealing valves prevent the contents of the supply line form escaping. A readily repairable flow control valve for the nozzle is also disclosed.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: September 18, 1990
    Assignee: Den-Tal-Ez, Inc.
    Inventors: Donald I. Gonser, Douglas M. Reinhart
  • Tamper-proof bottle caps and method of forming same
    Patent number: 4225050
    Abstract: A molded or formed tamper-proof cap adapted to be applied in unitary form to a container opening having a threaded neck and a ratchet retainer means associated with said threaded neck but being resistant to removal in unitary form from said container without separation of its parts. The present caps comprise a main cap body and an annular retainer skirt element which is coaxial with and has a larger diameter than said main cap body. Said retainer skirt element has a top surface comprising an annular horizontal flange and a cylindrical vertical side wall, said side wall being provided with angular engagement means adapted to slip over the ratchet retainer means present on the container when said cap is rotated onto the threaded neck of the container but to resist counter-rotation of said cap.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: September 30, 1980
    Assignee: Segen Industries, Inc.
    Inventor: Douglas M. Reinhart