Patents by Inventor Alexander D. S. ELLIN

Alexander D. S. ELLIN 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).

  • Laser marking
    Patent number: 8987633
    Abstract: A method and apparatus is disclosed for producing precision marks for a metrological scale in the form of a stainless steel ribbon. A laser is used to produce ultra-short pulses which have a fluence at the ribbon such that ablation takes place. The laser light can be scanned via scanner and the pitch of the marks can be controlled. The ablative technique causes little thermal input and improves the accuracy of the scale.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: March 24, 2015
    Assignee: Renishaw PLC
    Inventors: Alexander D. S. Ellin, James Reynolds Henshaw
  • LASER MARKING
    Publication number: 20130256284
    Abstract: A method and apparatus is disclosed for producing precision marks for a metrological scale in the form of a stainless steel ribbon. A laser is used to produce ultra-short pulses which have a fluence at the ribbon such that ablation takes place. The laser light can be scanned via scanner and the pitch of the marks can be controlled. The ablative technique causes little thermal input and improves the accuracy of the scale.
    Type: Application
    Filed: May 30, 2013
    Publication date: October 3, 2013
    Applicant: RENISHAW PLC
    Inventors: Alexander D. S. ELLIN, James Reynolds HENSHAW