Patents Assigned to National Patent Dental Products, Inc.
  • Method for supplying a heated liquid
    Patent number: 4793807
    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: June 17, 1987
    Date of Patent: December 27, 1988
    Assignee: National Patent Dental Products, Inc.
    Inventors: Aaron Friedman, H. Gordon Minns
  • Apparatus and method for supplying a heated liquid
    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