Patents by Inventor Cahal Whelan

Cahal Whelan 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: 4439151
    Abstract: A dental device is provided for fabricating dies from flexible impression material wherein the model, die and articulation mounting are accomplished in a single pouring. The device comprises a pair of recessed pivotal trays generally shaped to an individual's jaw. The member each includes inner and outer walls having internal ridges running vertically therealong at spaced distances and a base having predetermined spaced apertures thereabout to receive an insert. The trays are designed to be mounted face to face with a like member and open to The tray includes hollow cylindrical portions in the rear thereof, engaged by a transverse element for pivoting thereabout. A vertical stop pin is mounted through the distal arm to maintain the respective spacing of the trays. The insert member has downwardly projecting portions extending through the base apertures, a base engaging the base of the tray and an upwardly extending rib which is located centrally within the walls of the tray.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: March 27, 1984
    Inventor: Cahal Whelan