Patents by Inventor Abdullah M. S. Al-Nesafi

Abdullah M. S. Al-Nesafi 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).

  • Float-operated pump switch
    Patent number: 9121398
    Abstract: The float-operated pump switch provides float-operated pump switching for automatically maintaining the water level in a water tank supplied by a reservoir. The switch operates to start pumping water when the level in the upper tank is one-quarter of the volume of the tank, and continues pumping until the tank is full, thereby providing a hysteresis and reducing the number of times the pump needs to be operated.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: September 1, 2015
    Inventor: Abdullah M. S. Al-Nesafi