Patents by Inventor David M. McLey

David M. McLey 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).

  • Velocity sensing device using opto-electronic switches
    Patent number: 4362934
    Abstract: A musical synthesizer keyboard has a plurality of keys mounted so that each key may be displaced along and return along a locus of movement and where during travel in either direction along said locus a key causes a change of state in each of two corresponding optical detectors at spaced locations along said locus. Means are provided for signalling the states of the detectors to other equipment.
    Type: Grant
    Filed: April 8, 1981
    Date of Patent: December 7, 1982
    Assignee: Syntronics Music Corporation
    Inventor: David M. McLey