Patents by Inventor Stefano Zanella

Stefano Zanella 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).

  • Patent number: 7044023
    Abstract: A knob adjustment device particularly for adjusting the temperature in valve units for water-heating apparatus. The device comprises a geared transmission interposed between the knob and an operating member of the valve unit in order to transmit a rotary movement to the member about its own axis as a result of a rotation of the knob. The geared transmission includes a reduction mechanism with a variable transmission ratio such that, for a first angular portion and a second angular portion of the rotation of the knob, the member is rotated with respective different transmission ratios (T1,T2).
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: May 16, 2006
    Assignee: Sit La Precisa S.p.A.
    Inventors: Alessandro Toniolo, Stefano Zanella, Silvano Zanon
  • Publication number: 20060101355
    Abstract: An integrated circuit is designed to improve yield when manufacturing the integrated circuit, by obtaining a design element from a set of design elements used in designing integrated circuits. A variant design element is created based on the obtained design element, where a feature of the obtained design element is modified to create the variant design element. A yield to area ratio for the variant design element is determined.
    Type: Application
    Filed: November 17, 2003
    Publication date: May 11, 2006
    Applicant: PDF Solutions, Inc.
    Inventors: Dennis Ciplickas, Joe Davis, Christopher Hess, Sherry Lee, Enrico Malavasi, Abdulmobeen Mohammad, Ratibor Radojcic, Brian Stine, Rakesh Vallishayee, Stefano Zanella, Nicola Dragone, Carlo Guardiani, Michel Quarantelli, Stefano Tonello, Joshi Aniruddha
  • Patent number: 7007923
    Abstract: A valve unit for controlling the delivery of a fuel gas through a delivery duct (3) comprises a valve seat (6) in the duct, a closure member (5) associated with the seat, a motor-driven actuator (7) acting on the closure member in order to control it so as to open/close the valve seat, as well as an electromagnetic unit (22) with a first portion (23) carrying a magnetizing winding (24) and a second portion (25) which can be fixed firmly to the first position by magnetization.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: March 7, 2006
    Assignee: Sit La Precisa S.p.A.
    Inventors: Roberto Dorigo, Massimo Giacomelli, Stefano Zanella
  • Publication number: 20040245487
    Abstract: A valve unit for controlling the delivery of a fuel gas through a delivery duct (3) comprises a valve seat (6) in the duct, a closure member (5) associated with the seat, a motor-driven actuator (7) acting on the closure member in order to control it so as to open/close the valve seat, as well as an electromagnetic unit (22) with a first portion (23) carrying a magnetizing winding (24) and a second portion (25) which can be fixed firmly to the first portion by magnetization.
    Type: Application
    Filed: April 7, 2004
    Publication date: December 9, 2004
    Inventors: Roberto Dorigo, Massimo Giacomelli, Stefano Zanella
  • Patent number: 6745725
    Abstract: A knob adjustment device, particularly for adjusting the temperature in valve units of a water-heating apparatus. The knob adjustment device is mounted so as to be rotatable about a rotation axis in a stationary housing of the valve unit and has a safety member for the unidirectional restraint of the knob adjustment device relative to the housing so as to oppose rotation of the knob adjustment device in a first direction of rotation about the axis, the knob adjustment device being free to rotate in the opposite direction of rotation.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: June 8, 2004
    Assignee: Sit la Precisa S.p.A.
    Inventors: Alessandro Toniolo, Stefano Zanella
  • Publication number: 20040055414
    Abstract: A knob adjustment device particularly for adjusting the temperature in valve units for water-heating apparatus is described and comprises geared movement-transmission means interposed between the knob (2) and an operating member (4) of the valve unit in order to transmit a rotary movement to the member about its own axis as a result of a rotation of the knob. The geared transmission means comprise reduction means (5,6,7,8) with a variable transmission ratio such that, for a first angular portion (C) and a second angular portion (D) of the rotation of the knob, the member is rotated with respective different transmission ratios (T1,T2).
    Type: Application
    Filed: October 7, 2003
    Publication date: March 25, 2004
    Inventors: Alessandro Toniolo, Stefano Zanella, Silvano Zanon
  • Publication number: 20040050344
    Abstract: A knob adjustment device, particularly for adjusting the temperature in valve units of water-heating apparatus is described. The knob device is mounted so as to be rotatable about a rotation axis in a stationary housing of the valve unit and comprises safety means for the unidirectional restraint of the knob relative to the housing so as to oppose rotation of the knob in a first direction of rotation about the said axis, the knob being free to rotate in the opposite direction of rotation.
    Type: Application
    Filed: October 15, 2002
    Publication date: March 18, 2004
    Inventors: Alessandro Toniolo, Stefano Zanella