Patents Assigned to Dunlop Manufacturing, Inc.
  • Patent number: 9959844
    Abstract: A capo device for selectively altering the pitch range of a stringed instrument, the capo device being adapted to engage a variety of stringed instrument neck sizes and/or geometries while maintaining desired sound and pitch quality.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: May 1, 2018
    Assignee: Dunlop Manufacturing Inc.
    Inventors: James Andrew Dunlop, Jeff Burnham, Jim Dunlop
  • Patent number: 9812098
    Abstract: A musical instrument string covalently and/or ionically bonded with a nano-polymer substance. The nano-polymer substance can be hydrophobic and/or oleophobic, such that it can substantially repel water and/or oils and thereby prevent corrosion, oxidation, and/or other degradation of the musical instrument string. The bonding of the nano-polymer substance to the musical instrument string can also improve the musical instrument string's tone.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: November 7, 2017
    Assignee: Dunlop Manufacturing, Inc.
    Inventors: Bryan Hartley, Theresa Lambert, Jasmin Powell
  • Patent number: 9148721
    Abstract: A system, method and apparatus in the field of signal processing with particular applications to the specialized field of audio signal processing as it is used in the production or performance of music that is adapted and/or configured to mitigate or attenuate unwanted signals during a switching process between an effects apparatus and a signal bypass.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 29, 2015
    Assignee: DUNLOP MANUFACTURING, INC.
    Inventor: Robert Cedro
  • Patent number: 8779261
    Abstract: A device for converting a conventional Spanish guitar into an instrument which can be played like a Hawaiian guitar and/or used to modify the tone, pitch, key, timber and/or chord of a stringed instrument by selectively engaging the strings of a stringed instrument and selectively raising and/or lowering such strings relative to a fret board.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: July 15, 2014
    Assignee: Dunlop Manufacturing, Inc.
    Inventor: Jim Dunlop
  • Patent number: 8459613
    Abstract: A strap-drive system that provides smooth, reliable potentiometer adjustment, particularly in devices used in conjunction with musical instruments.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: June 11, 2013
    Assignee: Dunlop Manufacturing, Inc.
    Inventor: Samuel McRae
  • Patent number: 8330029
    Abstract: A textured surface for improving grip on plectra and other hand-held implements. A series of parallel ridges serve to frictionally engage thumb and forefinger surfaces and “lock” the grip in place.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: December 11, 2012
    Assignee: Dunlop Manufacturing, Inc.
    Inventor: James Andrew Dunlop
  • Publication number: 20040261600
    Abstract: A C-clamp capo comprises a string press for clamping down on the strings of a string-instrument against a front side of a fretboard. An extension arm curves behind and has an idler clamp with a first pivot attachment. Such enables a clamping action against a backside of the fretboard. A continuous insert having a positioning bumper that ensures consistent positioning against the fretboard is disposed all along an inside surface of the string press from a distal end across the first pivot attachment bridging over to an inside surface of the idler clamp and out to its distal end. A locking lever has a second pivot attachment to the extension arm behind the first pivot attachment, and provides a locking action against a backside of the idler clamp. A setscrew disposed in the locking lever provides an adjustable locking action between the idler clamp and the locking lever, e.g., for a range of thicknesses of the fretboard to be accommodated.
    Type: Application
    Filed: June 26, 2003
    Publication date: December 30, 2004
    Applicant: Dunlop Manufacturing, Inc.
    Inventor: Lowell Thomas Silva
  • Patent number: 6835880
    Abstract: A C-clamp capo comprises a string press for clamping down on the strings of a string-instrument against a front side of a fretboard. An extension arm curves behind and has an idler clamp with a first pivot attachment. Such enables a clamping action against a backside of the fretboard. A continuous insert having a positioning bumper that ensures consistent positioning against the fretboard is disposed all along an inside surface of the string press from a distal end across the first pivot attachment bridging over to an inside surface of the idler clamp and out to its distal end. A locking lever has a second pivot attachment to the extension arm behind the first pivot attachment, and provides a locking action against a backside of the idler clamp. A setscrew disposed in the locking lever provides an adjustable locking action between the idler clamp and the locking lever, e.g., for a range of thicknesses of the fretboard to be accommodated.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: December 28, 2004
    Assignee: Dunlop Manufacturing, Inc.
    Inventor: Lowell Thomas Silva
  • Patent number: 6626335
    Abstract: A guitar shoulder strap incorporates thickened, rolled edges along the length of the strap. The strap webbing between is generally about two millimeters thick and fifty millimeters wide. The thick, rolled edges are almost four millimeters thick and about six millimeters wide. A decorative pattern is weaved into the outside decorative surface. The strap webbing and thick, rolled edges are a single weave of textile wherein many longitudinal fibers have been bunched into cords at the edges and spiraling transverse fibers are woven to build the webbing and encase the cords.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: September 30, 2003
    Assignee: Dunlop Manufacturing, Inc.
    Inventor: James Andrew Dunlop
  • Patent number: 6545206
    Abstract: A guitar bridge-pin removal tool has a solid body sized to fit in a users hand and opposite surfaces that can be gripped between the thumb and fingers. A channel is disposed across one end of the solid body. Such channel has a main cross section that approximates that of a head of a bridge pin that retains a string in a guitar. A necked outer edge runs along the longitudinal lips of the channel and captures the head of said bridge pin along any portion. At least one side end in the channel is open to allow the head of the bridge pins to be slipped in and out.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: April 8, 2003
    Assignee: Dunlop Manufacturing, Inc.
    Inventor: John W. Brady
  • Publication number: 20020092409
    Abstract: A guitar bridge-pin removal tool has a solid body sized to fit in a users hand and opposite surfaces that can be gripped between the thumb and fingers. A channel is disposed across one end of the solid body. Such channel has a main cross section that approximates that of a head of a bridge pin that retains a string in a guitar. A necked outer edge runs along the longitudinal lips of the channel and captures the head of said bridge pin along any portion. At least one side end in the channel is open to allow the head of the bridge pins to be slipped in and out.
    Type: Application
    Filed: January 10, 2002
    Publication date: July 18, 2002
    Applicant: Dunlop Manufacturing, Inc.
    Inventor: John W. Brady
  • Patent number: 5274710
    Abstract: A variable impedance device which is connected between the preamplifier of a microphone or electric instrument and a public address system for controlling the signal volume of a musical performance. The variable resistor is controlled by a foot pedal operated by the performer so that his hands are free for an uninterrupted performance. The impedance includes a first section that can be preset manually to provide maximum desired signal volume with the footpedal in one direction (toe depressed on the pedal) and a second section that can be preset to provide minimum desired signal volume (heel depressed on the pedal).
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: December 28, 1993
    Assignee: Dunlop Manufacturing, Inc.
    Inventors: Mark S. Shaffer, Samuel J. McRae
  • Patent number: D378825
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: April 15, 1997
    Assignee: Dunlop Manufacturing, Inc.
    Inventor: James A. Dunlop
  • Patent number: D824272
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: July 31, 2018
    Assignee: Dunlop Manufacturing, Inc.
    Inventor: Bryan Hartley
  • Patent number: D1006586
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: December 5, 2023
    Assignee: DUNLOP MANUFACTURING, INC.
    Inventor: Daniel W. Parks
  • Patent number: D1007274
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: December 12, 2023
    Assignee: DUNLOP MANUFACTURING, INC.
    Inventors: Daniel W. Parks, Justin M. Page
  • Patent number: D1014614
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: February 13, 2024
    Assignee: DUNLOP MANUFACTURING, INC.
    Inventor: Daniel W. Parks