Patents by Inventor David J. Levenson

David J. Levenson 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: 9320880
    Abstract: A device for administering a fluid includes a housing that holds a sterilization cassette having a shell, a fluid chamber, and a light transmitting window. An input directs fluid into the chamber. A light source is positioned to direct ultraviolet or other light through the window into the fluid chamber at an intensity sufficient to kill or render non-reproducible at least one species of a microorganism in the fluid while the fluid is in the chamber. An outlet receives fluid from the cassette and directs the fluid to a destination. The fluid is substantially uniformly exposed to the light while in the chamber. The cassette and light source are contained in a housing that prevents light from escaping the housing.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: April 26, 2016
    Assignee: DJLM Innovations, LLC
    Inventors: David J. Levenson, John L. Moss
  • Publication number: 20130317422
    Abstract: A device for administering a fluid includes a housing that holds a sterilization cassette having a shell, a fluid chamber, and a light transmitting window. An input directs fluid into the chamber. A light source is positioned to direct ultraviolet or other light through the window into the fluid chamber at an intensity sufficient to kill or render non-reproducible at least one species of a microorganism in the fluid while the fluid is in the chamber. An outlet receives fluid from the cassette and directs the fluid to a destination. The fluid is substantially uniformly exposed to the light while in the chamber. The cassette and light source are contained in a housing that prevents light from escaping the housing.
    Type: Application
    Filed: July 3, 2013
    Publication date: November 28, 2013
    Applicant: DJLM Innovations, LLC
    Inventors: David J. Levenson, John L. Moss
  • Patent number: 8496610
    Abstract: A device for administering a fluid includes a sterilization cassette having a shell, a fluid chamber, and an ultraviolet light transmitting window. An input tube directs fluid into the chamber. An ultraviolet light source is positioned to direct ultraviolet light through the window into the fluid chamber at an intensity sufficient to kill or render non-reproducible at least one species of a microorganism in the fluid while the fluid is in the chamber. An outlet tube receives fluid from the cassette and directs the fluid to a destination. The fluid is substantially uniformly exposed to the light while in the chamber. The cassette and light source are contained in a housing that prevents ultraviolet light from escaping the housing.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: July 30, 2013
    Inventors: David J. Levenson, John L. Moss
  • Publication number: 20100324505
    Abstract: A device for administering a fluid includes a sterilization cassette having a shell, a fluid chamber, and an ultraviolet light transmitting window. An input tube directs fluid into the chamber. An ultraviolet light source is positioned to direct ultraviolet light through the window into the fluid chamber at an intensity sufficient to kill or render non-reproducible at least one species of a microorganism in the fluid while the fluid is in the chamber. An outlet tube receives fluid from the cassette and directs the fluid to a destination. The fluid is substantially uniformly exposed to the light while in the chamber. The cassette and light source are contained in a housing that prevents ultraviolet light from escaping the housing.
    Type: Application
    Filed: June 22, 2010
    Publication date: December 23, 2010
    Applicant: DJLM INNOVATIONS, LLC
    Inventors: David J. Levenson, John L. Moss
  • Patent number: 7324019
    Abstract: An ergonomic keyboard as shown in FIG. 3A for use with a stationary palm wherein the keys (15) of the keyboard are actuated only by motion of the joints in the digits. The keyboard may have a thumb region (20), a palm rest region (8) and a hypothenar rest region which are discrete parts and are adjustable relative to one another along a longitudinal axis. Some keys may be actuated by the back surface of the digits. The keyboard may be on an upper portion (2) which is mounted on a base (1) such that three dimensional rotational adjustment is possible between the upper portion and base. The position of the keyboard relative to a user may be adjusted. The spacing of the keys on the keyboard may be spaced at different intervals and have different forces for actuation.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: January 29, 2008
    Inventor: David J. Levenson
  • Publication number: 20030011503
    Abstract: An ergonomic keyboard as shown in FIG. 3A for use with a stationary palm wherein the keys (15) of the keyboard are actuated only by motion of the joints in the digits. The keyboard may have a thumb region (20), a palm rest region (8) and a hypothenar rest region which are discrete parts and are adjustable relative to one another along a longitudinal axis. Some keys may be actuated by the back surface of the digits. The keyboard may be on an upper portion (2) which is mounted on a base (1) such that three dimensional rotational adjustment is possible between the upper portion and base. The position of the keyboard relative to a user may be adjusted. The spacing of the keys on the keyboard may be spaced at different intervals and have different forces for actuation.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 16, 2003
    Inventor: David J. Levenson