Patents by Inventor Carleton A. Powers Jr.

Carleton A. Powers Jr. 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).

  • Medical suctioning bacteria valve and related method
    Patent number: 5868701
    Abstract: A valve and method for preventing backflow of bacteria and other unhealthy substances in a medical suctioning apparatus. The valve defines a chamber and has an outlet and an opposed inlet. The valve provides a tortuous path that effectively limits backflow of bacteria and other unhealthy substances. The valve further includes a diffuser proximate the outlet to direct backflowing fluids to travel the full length of the tortuous path. The valve is used between a medical suctioning unit and a patient-contacting part such as an ejector, evacuator, or yankauer.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: February 9, 1999
    Inventor: Carleton A. Powers, Jr.
  • Medical suctioning bacteria valve and related method
    Patent number: 5728078
    Abstract: A valve and method for preventing backflow of bacteria and other unhealthy substances in a medical suctioning apparatus. The valve defines a chamber and has an outlet and an opposed inlet. The valve provides a tortuous path that effectively limits backflow of bacteria and other unhealthy substances. The valve further includes a diffuser proximate the outlet to direct backflowing fluids to travel the full length of the tortuous path. The valve is used between a medical suctioning unit and a patient-contacting part such as an ejector, evacuator, or yankauer.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: March 17, 1998
    Assignee: Powers Dental & Medical Technologies Inc.
    Inventor: Carleton A. Powers, Jr.
  • Bacteria valve
    Patent number: 5464397
    Abstract: A valve is provided for preventing backflow of bacteria and other unhealthy substances in a medical suctioning apparatus. The valve includes a chamber and a tubular member positionable in the chamber having one or more reversely lipped fins. The chamber and tubular member provide a tortuous path that effectively limits backflow of bacteria and other unhealthy substances. Various modifications of the valve are disclosed including two, three and four piece valves. The valves are configured to be positioned between a medical suctioning unit and a patient-contacting part such as ejectors, evacuators, and medical yankauers. The valve shapes facilitate manufacture, and can be made of disposable or autoclavable materials.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: November 7, 1995
    Inventor: Carleton A. Powers Jr.