Patents by Inventor Stuart K Campbell

Stuart K Campbell 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: 8437978
    Abstract: Measurement apparatus is described that comprises a measurement portion for acquiring object measurements and an output portion for outputting measurement data relating to the acquired object measurements. A deactivation portion is provided for inhibiting normal operation of the measurement apparatus such that output of the measurement data is prevented. The deactivation portion, in use, reads apparatus usage information from an apparatus usage module and inhibits normal operation of the measurement apparatus if said apparatus usage information fails to meet one or more predetermined criteria. The apparatus usage module may be provided as an integral part of the measurement apparatus or as a separate activation button. The measurement apparatus may comprise a measurement probe such as a touch trigger measurement probe.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: May 7, 2013
    Assignee: Renishaw PLC
    Inventors: Tim Prestidge, Jonathan P Fuge, Stuart K Campbell
  • Patent number: 7676945
    Abstract: A measurement probe, such as a touch trigger probe, is described that comprises a stylus module attachable to a base module. The stylus module comprising a housing and a stylus holder moveably attached to the housing. The base module comprises a measurement portion for generating measurement data indicative of movement of the stylus holder relative to the housing. The stylus module has an inbuilt failure mode and thereby a substantially predetermined operational lifetime. In one embodiment, the inbuilt failure mode is provided by integrating a battery into the stylus module. Providing a mechanical failure mode in which a component of the stylus module catastrophically fails after a certain amount of usage is also described.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: March 16, 2010
    Assignee: Renishaw PLC
    Inventors: Tim Prestidge, Jonathan P Fuge, Stephen E Lummes, Stuart K Campbell
  • Publication number: 20090034677
    Abstract: Measurement apparatus is described that comprises a measurement portion for acquiring object measurements and an output portion (for outputting measurement data relating to the acquired object measurements. A deactivation portion is provided for inhibiting normal operation of the measurement apparatus such that output of the measurement data is prevented. The deactivation portion, in use, reads apparatus usage information from an apparatus usage module and inhibits normal operation of the measurement apparatus if said apparatus usage information fails to meet one or more predetermined criteria. The apparatus usage module may be provided as an integral part of the measurement apparatus or as a separate activation button. The measurement apparatus may comprise a measurement probe such as a touch trigger measurement probe.
    Type: Application
    Filed: July 8, 2008
    Publication date: February 5, 2009
    Applicant: RENISHAW PLC
    Inventors: Tim Prestidge, Jonathan P. Fuge, Stuart K. Campbell
  • Publication number: 20090028286
    Abstract: A method of measurement using a measurement probe system includes the steps of (i) providing a measurement probe system having a measurement probe to a user, the measurement probe system being suitable for use with co-ordinate positioning apparatus and (ii) monitoring usage of the measurement probe system.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 29, 2009
    Applicant: RENISHAW PLC
    Inventors: Tim Prestidge, Jonathan P. Fuge, Stephen E. Lummes, Stuart K. Campbell
  • Publication number: 20090025243
    Abstract: A measurement probe, such as a touch trigger probe, is described that comprises a stylus module attachable to a base module. The stylus module comprising a housing and a stylus holder moveably attached to the housing. The base module comprises a measurement portion for generating measurement data indicative of movement of the stylus holder relative to the housing. The stylus module has an inbuilt failure mode and thereby a substantially predetermined operational lifetime. In one embodiment, the inbuilt failure mode is provided by integrating a battery into the stylus module. Providing a mechanical failure mode in which a component of the stylus module catastrophically fails after a certain amount of usage is also described.
    Type: Application
    Filed: July 8, 2008
    Publication date: January 29, 2009
    Applicant: RENISHAW PLC
    Inventors: Tim Prestidge, Jonathan P. Fuge, Stephen E. Lummes, Stuart K. Campbell