Patents Examined by Andriene J. Lepiane
  • Patent number: 4768954
    Abstract: A dispensing nozzle tip for use with dental syringe which is adapted to be detachably connected to the end of a dental syringe barrel having a uniquely shaped dispensing nozzle which enables the extruded dental material to be dispensed as a flat ribbon for direct placement onto a patient's tooth in a manner which minimizes the time and effort on the part of a dentist to coat a tooth with such dental material; and which nozzle tip is rendered readily disposable to prevent cross-contamination when the dental syringe is used on successive patients.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: September 6, 1988
    Inventor: William B. Dragan
  • Patent number: 4699589
    Abstract: An improved method and apparatus for effecting delivery of a chemical solution useful in the softening of tooth caries and/or plaque in a patient's mouth utilizes a reciprocating piston-type pump having flow and pressure regulation for injecting a pulsating jet stream of the solution at a controlled rate and pressure, in combination with a separate heater device adjacent an applicator maintaining the temperature of the solution at or near body temperature as it is delivered to the mouth.
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: October 13, 1987
    Assignee: National Patent Dental Products, Inc.
    Inventors: Aaron Friedman, H. Gordon Minns
  • Patent number: 4654005
    Abstract: A dental apparatus for use in efficiently obtaining an accurate relationship of upper and lower jaws of a dental patient which includes a wafer and a leaf gage. The wafer is made of a substantially stable but vertically deformable material and has a generally dental arcuate shape. A slot extends through the wafer for receiving the leaf gage. The leaf gage is positionable within the slot of the wafer and thereafter placed within a patient's mouth in order to obtain an accurate centric relation record.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: March 31, 1987
    Assignee: Ohio State University
    Inventor: Julian B. Woelfel