Patents by Inventor Mark Acres

Mark Acres 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).

  • Probe for sensing the position of an object
    Patent number: 7316077
    Abstract: A probe (10) for a machine tool has a switch (32) or other sensor for connecting its battery power supply in response to movement of the probe. In a preferred embodiment, the switch responds to rotation of the probe in the machine tool spindle. The switch (32) is responsive to linear accelerations, but is mounted in the probe so as to respond also to the rotation. A circuit is provid to discriminate between the rotation and linear movements.
    Type: Grant
    Filed: March 13, 2004
    Date of Patent: January 8, 2008
    Assignee: Renishaw, PLC
    Inventors: Jonathan Paul Fuge, Robin William Cashmore, David Collingwood, Mark Acres
  • Probe for sensing the position of an object
    Publication number: 20070068024
    Abstract: A probe (10) for a machine tool has a switch (32) or other sensor for connecting its battery power supply in response to movement of the probe. In a preferred embodiment, the switch responds to rotation of the probe in the machine tool spindle. The switch (32) is responsive to linear accelerations, but is mounted in the probe so as to respond also to the rotation. A circuit is provided to discriminate between the rotation and linear movements.
    Type: Application
    Filed: March 13, 2004
    Publication date: March 29, 2007
    Applicant: RENISHAW PLC
    Inventors: Jonathan Fuge, Robin Cashmore, David Collingwood, Mark Acres