Patents by Inventor Colin T Bell

Colin T Bell 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).

  • Optical measuring apparatus for measuring objects on machines
    Patent number: 7053392
    Abstract: The present invention teaches a method and apparatus for making measurement of an object on a machine, such as a machine tool, using an optical measuring apparatus which includes a light source for generating a beam of light which is incident on a detector. A detection signal is generated within the detector each time the beam is interrupted. The duration and/or frequency of the detection signals are evaluated and an output signal is emitted from the detection only if a further detection signal is present within the detector in a specified time interval from the generation of an earlier detection signal.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: May 30, 2006
    Assignee: Renishaw, PLC
    Inventors: Victor G. Stimpson, Jon P. Fuge, William K. Davies, Norman J. Leete, Colin T. Bell
  • Optical measuring apparatus for measuring objects on machines
    Patent number: 6878953
    Abstract: The present invention teaches a method and apparatus for making measurement of an object on a machine, such as a machine tool, using an optical measuring apparatus which includes a light source for generating a beam of light which is incident on a detector. A detection signal is generated within the detector each time the beam is interrupted. The duration and/or frequency of the detection signals are evaluated and an output signal is emitted from the detection only if a further detection signal is present within the detector in a specified time interval from the generation of an earlier detection signal.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: April 12, 2005
    Assignee: Renishaw PLC
    Inventors: Victor G Stimpson, Jon P Fuge, William K Davies, Norman J Leete, Colin T Bell
  • Optical measuring apparatus for measuring objects on machines
    Publication number: 20040069936
    Abstract: The present invention teaches a method and apparatus for making measurement of an object on a machine, such as a machine tool, using an optical measuring apparatus which includes a light source for generating a beam of light which is incident on a detector. A detection signal is generated within the detector each time the beam is interrupted. The duration and/or frequency of the detection signals are evaluated and an output signal is emitted from the detection only if a further detection signal is present within the detector in a specified time interval from the generation of an earlier detection signal.
    Type: Application
    Filed: October 6, 2003
    Publication date: April 15, 2004
    Applicant: RENISHAW PLC
    Inventors: Victor G. Stimpson, Jon P. Fuge, William K. Davies, Norman J. Leete, Colin T. Bell
  • Optical measuring apparatus for measuring objects on machines
    Patent number: 6635894
    Abstract: The present invention teaches a method and apparatus for making measurement of an object on a machine, such as a machine tool, using an optical measuring apparatus which includes a light source for generating a beam of light which is incident on a detector. A detection signal is generated within the detector each time the beam is interrupted. The duration and/or frequency of the detection signals are evaluated and an output signal is emitted from the detection only if a further detection signal is present within the detector in a specified time interval from the generation of an earlier detection signal.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: October 21, 2003
    Assignee: Renishaw PLC
    Inventors: Victor G Stimpson, Jon P Fuge, William K Davies, Norman J Leete, Colin T Bell