Patents by Inventor David Senften

David Senften 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: 9576566
    Abstract: An electronic bass musical instrument that has the appearance, character and ambiance of a traditional washtub bass where the sounds of the bass are produced electronically by manually pressing an electrically conductive string extending along a neck of the bass against selected electrically conductive contacts arranged at spaced positions along the neck thus sending signals to an electronic control circuit of the instrument, whereby the sounds of the bass are produced electronically, providing vastly improved tonal quality and pitch accuracy to the sounds produced.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: February 21, 2017
    Inventor: David Senften
  • Publication number: 20130098229
    Abstract: An electronic bass musical instrument that has the appearance, character and ambiance of a traditional washtub bass where the sounds of the bass are produced electronically by manually pressing an electrically conductive string extending along a neck of the bass against selected electrically conductive contacts arranged at spaced positions along the neck thus sending signals to an electronic control circuit of the instrument, whereby the sounds of the bass are produced electronically, providing vastly improved tonal quality and pitch accuracy to the sounds produced.
    Type: Application
    Filed: October 25, 2011
    Publication date: April 25, 2013
    Inventor: David Senften
  • Publication number: 20060254999
    Abstract: A model railroad car magnetic coupling and uncoupling system employs pairs of cooperating magnetic couplers that have unique and simplified constructions, and an uncoupler mechanism that is mounted beneath a section of model railroad track and operates automatically to separate the mechanical couplers of two adjacent model railroad cars positioned on the section of track.
    Type: Application
    Filed: April 17, 2006
    Publication date: November 16, 2006
    Inventor: David Senften
  • Publication number: 20050199570
    Abstract: A model railroad car magnetic coupling and uncoupling system employs pairs of cooperating magnetic couplers that have unique and simplified constructions, and an uncoupler mechanism that is mounted beneath a section of model railroad track and operates automatically to separate the mechanical couplers of two adjacent model railroad cars positioned on the section of track.
    Type: Application
    Filed: March 10, 2004
    Publication date: September 15, 2005
    Inventor: David Senften