Patents by Inventor Reuben Harel

Reuben Harel 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).

  • Residual life indicating system
    Patent number: 7201036
    Abstract: A residual life indicating system for a filter includes a main filter, a sampling filter, and a sensor. Both the main filter and the sampling filter receive an ambient gas meant to be filtered. The sensor connects to the sampling filter and senses the presence of a predetermined chemical in the gas that has been filtered by the sampling filter.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: April 10, 2007
    Assignee: Hunter Manufacturing Co.
    Inventors: John P. Custer, Kenneth L. Kessler, Reuben Harel, John L. Creed
  • Residual life indicating system
    Publication number: 20050188749
    Abstract: A residual life indicating system for a filter includes a main filter, a sampling filter, and a sensor. Both the main filter and the sampling filter receive an ambient gas meant to be filtered. The sensor connects to the sampling filter and senses the presence of a predetermined chemical in the gas that has been filtered by the sampling filter.
    Type: Application
    Filed: February 24, 2005
    Publication date: September 1, 2005
    Inventors: John Custer, Kenneth Kessler, Reuben Harel, John Creed