Patents by Inventor Leopoldo Rossetto

Leopoldo Rossetto 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).

  • Device for controlling heating element power
    Patent number: 5646460
    Abstract: A control device for heating elements, particularly for use in household electrical appliances such as cookers, cooking hobs, ovens and the like, comprising a driven switch in series with the, a first capacitor acting as a filter in parallel with the load, a second capacitor acting as a freewheeling capacitor operationally in series with the load and with the capacitor, these two being connected in parallel, and at least one inductor means in series with the load, characterised in that: a) the driven switch is a static switch hence able to assume an open state and a closed state; b) an inductor is provided in parallel with the load, or alternatively a section of the inductor means is in parallel with the load; c) a freewheeling diode is provided connected between an intermediate point between the inductor or section and freewheeling capacitor and an intermediate point between the load and static switch, so that when the static switch is in one state the freewheeling capacitor is charged via the freewheeling d
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: July 8, 1997
    Assignee: Whirlpool Europe B.V.
    Inventors: Cesare Bocchiola, Paolo Tenti, Leopoldo Rossetto, Giorgio Spiazzi