Patents by Inventor Grongar Wynn Lloyd

Grongar Wynn Lloyd 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).

  • Scanning probe and an approach mechanism therefor
    Patent number: 5767514
    Abstract: A method and apparatus for tunnelling microscopy utilising a tunnelling microscope head (11) having a tip (15) which is moveable by a driver (25) towards a sample (28) and is stopped in its advance as an electron flow between the tip and the sample is detected . The tip (15) is advanced towards the sample via a piezoelectric member (24) at a one voltage level, and on detection of the electron flow the voltage level of the piezoelectric member (24) is changed causing the piezoelectric member (24) to retract, stopping the advance of the tip (15) and stopping the driver (25) within the retraction distance.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: June 16, 1998
    Inventor: Grongar Wynn Lloyd