Patents by Inventor Pietro Rizzeto

Pietro Rizzeto 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).

  • Washing aid dispenser and washing machine comprising said dispenser
    Patent number: 7249473
    Abstract: The present invention refers to a washing aid dispenser for a washing machine. The dispenser (2) comprises at least a compartment (3) adapted to contain washing aid products, such as a rinse aid or fabric softener, provided with a first siphon (4) having pre-determined head and diameter and adapted to transfer said washing aid substances into the washing tub of the machine when the water in the compartment (3) reaches up to a priming level corresponding to said pre-determined head. In the compartment (3) there is further provided at least a second siphon (9) having greater head and diameter than said first siphon (4) and adapted to transfer said washing aid substances into the washing tub of the machine when the water in the compartment (3) reaches up to a priming level which is higher than the priming level of the first siphon (4).
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: July 31, 2007
    Assignee: Electrolux Home Products Corporation N.V.
    Inventors: Pietro Rizzeto, Arturo Gamba
  • Washing aid dispenser and washing machine comprising said dispenser
    Publication number: 20040011089
    Abstract: The present invention refers to a washing aid dispenser for a washing machine. The dispenser (2) comprises at least a compartment (3) adapted to contain washing aid products, such as a rinse aid or fabric softener, provided with a first siphon (4) having pre-determined head and diameter and adapted to transfer said washing aid substances into the washing tub of the machine when the water in the compartment (3) reaches up to a priming level corresponding to said pre-determined head.
    Type: Application
    Filed: March 17, 2003
    Publication date: January 22, 2004
    Applicant: Electrolux Home Products Corporation N.V.
    Inventors: Pietro Rizzeto, Arturo Gamba