Patents by Inventor Walter Leonard Fuller

Walter Leonard Fuller 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).

  • Patent number: 4026178
    Abstract: A magnetic pickup for a stringed instrument has one or two coils juxtaposed with the strings each coil having an inner polepiece disposed centrally therein. A single polarity is induced in each inner polepiece by two bar magnets, one at each side of the polepiece externally of the coil. An outer polepiece is magnetically coupled to an outside edge of each of the bar magnets and extends toward the strings. Each polepiece has a preselected shape, with an upper edge which is either continuous, or discontinuous with a plurality of pole legs, one common to each string of the musical instrument. The distance between the pickup and strings is adjustable to select a desired response. When pole legs are used, they are selectable in height by shearing off the distal end of each leg to obtain a selected pickup sensitivity for each string.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: May 31, 1977
    Assignee: Norlin Music, Inc.
    Inventor: Walter Leonard Fuller