Patents by Inventor David C. Baxter

David C. Baxter 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: 6164503
    Abstract: A screw-on closure for bottles that initially works with an induction seal liner and provides a leak resistant reseal on the bottle after the liner is removed. The closure has a unique annular convex sealing surface that overlies the mouth of the bottle. The sealing surface and the closure body area supporting it are sufficiently massive to withstand the heat generated in an induction liner sealing process and have a geometry that promotes a line contact with the mouth of the bottle to ensure a drip resistant reclose. A dispensing aperture of the cap is sealed by a hinged flap that has its sealing surface areas strategically located relative to the hinge to ensure repeated drip free opening and closing dispensing operation.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: December 26, 2000
    Assignee: Weatherchem Corporation
    Inventors: Michael J. Forsyth, David C. Baxter
  • Patent number: 5383582
    Abstract: A rotor-style sift-resistant dispensing closure of injection-molded thermoplastic having a base that provides a resilient seal on its dispensing hole and a rotor carried on the base in a position that compresses the seal for sealing effectiveness. The rotor is accurately maintained in a flat configuration by the base which retains the rotor both at its center and at its periphery and which stabilizes the rotor against distortion with upstanding supporting ribs situated between the center and periphery of the rotor.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: January 24, 1995
    Assignee: Weatherchem Corporation
    Inventors: David C. Baxter, Michael J. Forsyth
  • Patent number: 4797666
    Abstract: In a fluid flow supply system, monitoring a fluid supply system to accurately determine whether an abnormal flow condition or a catastrophic flow condition exists in such supply system. A parameter of fluid flow in the supply system is measured and a first signal is produced corresponding to such parameter. A first timer, adapted to be reset by the first signal, produces a signal upon expiration of a preselected time period. A second timer, adapted to be reset by the signal produced by the first timer, produces an output signal upon expiration of a preselected time period substantially greater in duration than the preselected time period of the first timer. Accordingly if the time period of the first timer is not exceeded (i.e., it is continuously reset by first signals measuring the fluid flow parameter), then the time period for the second timer will be exceeded whereby an abnormal flow condition is determined to exist.
    Type: Grant
    Filed: September 16, 1986
    Date of Patent: January 10, 1989
    Inventors: Carlton J. Baxter, David C. Baxter
  • Patent number: D385791
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: November 4, 1997
    Assignee: Weatherchem Corporation
    Inventors: Michael J. Forsyth, David C. Baxter