Patents by Inventor David Andrew LARKHAM

David Andrew LARKHAM 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).

  • SUPPORT
    Publication number: 20240377178
    Abstract: A positioning apparatus including a support extending in a first direction, and a beam extending in a second direction. The beam movably mounted to the support so as to be movable in the first direction and exerts a load on the support. The support includes a profile which when the beam exerts the load thereon the profile of the support is deformed such that the beam is maintained at a substantially constant orientation for all locations of the beam along the support.
    Type: Application
    Filed: October 4, 2022
    Publication date: November 14, 2024
    Applicant: RENISHAW PLC
    Inventors: Stephen Paul HUNTER, David Andrew LARKHAM
  • Load bearing structure
    Patent number: 11236987
    Abstract: A coordinate positioning apparatus having a load bearing structure. The load bearing structure has at least one elongate corner piece providing at least two bearing surfaces, one on each side of the corner, for a carriage moveable along the load bearing structure, and at least one piece of sheet material which extends along the at least one elongate corner piece and provides at least one load bearing facet.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: February 1, 2022
    Assignee: RENISHAW PLC
    Inventors: Hugo George Derrick, Stephen Paul Hunter, David Andrew Larkham, David Roberts McMurtry
  • Bearing arrangement
    Patent number: 11060836
    Abstract: A positioning apparatus including a moveable member moveable along a bearing guideway in a first dimension, the moveable member including at a first end thereof at least first and second bearing members which are preloaded against corresponding first and second sides of a concave corner of the bearing guideway.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: July 13, 2021
    Assignee: RENISHAW PLC
    Inventors: Stephen Paul Hunter, David Andrew Larkham
  • Positioning apparatus with relatively moveable members and a linear motor mounted thereon
    Patent number: 10826369
    Abstract: A positioning apparatus comprising first and second relatively moveable members, and a linear motor comprising at least one elongate stator assembly and at least one armature assembly respectively mounted to the first and second moveable members for effecting relative movement of the first and second moveable members, configured so at to permit longitudinal expansion and/or contraction of the at least one elongate stator assembly and/or of the at least one armature assembly relative to its respective member.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: November 3, 2020
    Assignee: RENISHAW PLC
    Inventors: Stephen Mark Angood, Hugo George Derrick, Stephen Paul Hunter, David Andrew Larkham
  • LOAD BEARING STRUCTURE
    Publication number: 20200309500
    Abstract: A coordinate positioning apparatus having a load bearing structure. The load bearing structure has at least one elongate corner piece providing at least two bearing surfaces, one on each side of the corner, for a carriage moveable along the load bearing structure, and at least one piece of sheet material which extends along the at least one elongate corner piece and provides at least one load bearing facet.
    Type: Application
    Filed: April 17, 2018
    Publication date: October 1, 2020
    Applicant: RENISHAW PLC
    Inventors: Hugo George DERRICK, Stephen Paul HUNTER, David Andrew LARKHAM, David Roberts MCMURTRY
  • BEARING ARRANGEMENT
    Publication number: 20200080830
    Abstract: A positioning apparatus including a moveable member moveable along a bearing guideway in a first dimension, the moveable member including at a first end thereof at least first and second bearing members which are preloaded against corresponding first and second sides of a concave corner of the bearing guideway.
    Type: Application
    Filed: April 17, 2018
    Publication date: March 12, 2020
    Applicant: RENISHAW PLC
    Inventors: Stephen Paul HUNTER, David Andrew LARKHAM
  • LINEAR MOTOR MOUNTS
    Publication number: 20180309354
    Abstract: A positioning apparatus comprising first and second relatively moveable members, and a linear motor comprising at least one elongate stator assembly and at least one armature assembly respectively mounted to the first and second moveable members for effecting relative movement of the first and second moveable members, configured so at to permit longitudinal expansion and/or contraction of the at least one elongate stator assembly and/or of the at least one armature assembly relative to its respective member.
    Type: Application
    Filed: April 17, 2018
    Publication date: October 25, 2018
    Applicant: RENISHAW PLC
    Inventors: Stephen Mark ANGOOD, Hugo George DERRICK, Stephen Paul HUNTER, David Andrew LARKHAM