Patents by Inventor Sergio Rabuffetti

Sergio Rabuffetti 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).

  • Method and apparatus for controlling by-pass liquid flow in dish-washing machines
    Patent number: 4094702
    Abstract: Method and apparatus for washing dishes allowing independent control of washing liquid flow to upper and lower baskets. A valve allows selective reduction of liquid flow to an upper washing arm and/or by-passing liquid so that it does not flow through the washing arm nozzles.
    Type: Grant
    Filed: January 13, 1977
    Date of Patent: June 13, 1978
    Assignee: U.S. Philips Corporation
    Inventor: Sergio Rabuffetti
  • Dishwashing machine closure safety switch device
    Patent number: 3944767
    Abstract: Safety device for a dishwashing machine comprising a locking means allowing limited angular movement of the machine closure in case of vapor pressure build-up and a microswitch interrupting the pump circuit upon such angular movement or inadvertent opening of the closure.
    Type: Grant
    Filed: May 24, 1974
    Date of Patent: March 16, 1976
    Assignee: U.S. Philips Corporation
    Inventor: Sergio Rabuffetti