Patents by Inventor Raymond Louis Buvel

Raymond Louis Buvel 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).

  • Safety controller with simplified interface
    Patent number: 7328370
    Abstract: A safety controller with redundant controllers, each executing safety tasks and comparing their results, provides an improved interface in which a user interacts with a single processor and the second processor is invisible. The interacting processor provides for the transmission of programs and variables to both processors when they are safety tasks and coordinates synchronization of the two programs and comparison of their operation all without additional user input.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: February 5, 2008
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Anthony Gerard Gibart, Paul G. Kucharski, Joseph Paul Izzo, Raymond Louis Buvel, Michael Dean Kalan, Charles Martin Rischar
  • Safety controller with hardware memory lock
    Patent number: 7228390
    Abstract: A safety controller provides for reliable mixed execution of standard and safety control programs held in a common memory by providing a hardware lock that is locked at times when the safety program is not executing to minimize potential corruption of the safety program by the standard program.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: June 5, 2007
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Charles Martin Rischar, Raymond Louis Buvel, Joseph Paul Izzo, Jeremy Stephen Vechinski
  • Safety controller providing rapid recovery of safety program data
    Patent number: 7027880
    Abstract: Re-certification of a control program loaded in a safety controller is avoided through the use of a digital snapshot and digital signature, the snapshot providing a rapidly loadable memory image file and the signature providing a confirmation that the file loaded matches a previously certified copy so as to avoid the need for time consuming re-certification.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: April 11, 2006
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Joseph Paul Izzo, Norman Sievert Shelvik, Michael Dean Kalan, Charles Martin Rischar, Raymond Louis Buvel