Music – Instruments – Stringed
Patent
1992-08-05
1994-06-28
Gellner, Michael L.
Music
Instruments
Stringed
84318, G10D 300
Patent
active
053236769
ABSTRACT:
The invention is a bar chord machine for stringed musical instruments with frets. The machine has a generally longitudinal frame made of two parallel spaced-apart rods with clamps for securing the frame next to and generally parallel to the neck of the stringed instrument. One rod acts as a pivot point for a plurality of lever presses which extend perpendicularly from the rod in spaced apart relationship out over the top of the fingerboard of the instrument. The other rod acts as a pivot stop for the lever presses, and as an attachment point for springs connected to the lever presses which bias them away from the fingerboard. The lever presses have a channel in their central underside for receiving a presser bar which is pivotally connected to the lever press and spring biased away from it. The presser bar has a pad on its bottom surface for pressing down uniformly on the instrument's strings near a fret. This way, when the instrument is originally tuned to an open chord, other chords may be played by simply pushing the press lever down so that it rotates and the presser bar and pad press uniformly down on the strings near a fret.
REFERENCES:
patent: 1094038 (1914-04-01), Weaver
patent: 3837255 (1974-09-01), Starns et al.
patent: 3851558 (1974-12-01), Hopkins
patent: 4030400 (1977-06-01), Del Castillo
patent: 4154134 (1979-05-01), Schreiber
patent: 4926732 (1990-05-01), Collins et al.
Dykas Frank J.
Gellner Michael L.
Korfanta Craig M.
Pedersen Ken J.
Spyrou Cassandra
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