Patents by Inventor Charles T. Dobbs

Charles T. Dobbs 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: 5129822
    Abstract: This dental casting apparatus includes a track, and a tray. The track has an inner and an outer track wall and a first and a second end portion which combine to define a chamber. A hardenable wet stone material is positionable within the chamber of the track. After the stone is allowed to harden within the track, a sharp knife cuts through the stone and the track to form a plurality of dies. The tray has an inner tray wall and outer tray wall which combine to define a recessed portion. The individual dies are positionable within the tray recessed portion, and are readily engageable and disengageable therefrom. The dental casting apparatus also includes a mechanism for securely retaining the dies to the tray in such a manner that each die can be individually removed from the tray without disengaging adjacent dies.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: July 14, 1992
    Inventor: Charles T. Dobbs
  • Patent number: 4758162
    Abstract: An apparatus for the preparation of a fixed bridge which includes a wax occlusal bar adapted to be positioned within a gap located between two abutments in a model of the patient's mouth and at least one removable wax pontic adapted to be carried on the occlusal bar. The wax pontic is movable and rotatable relative to the bar. The method of preparing a wax bridge employing this apparatus includes the following steps:(a) preparing a model of the patient's mouth;(b) inserting an occlusal bar into a gap between the two teeth;(c) temporarily affixing the bar in the gap;(d) movably positioning at least one pontic on the occlusal bar;(e) affixing the positioned pontic to the occlusal bar; and(f) removing the occlusal bar with the pontic affixed thereto from the model. The prepared wax bridge can then be used to cast a suitable fixed bridge.
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: July 19, 1988
    Inventor: Charles T. Dobbs