Music – Instruments – Rigid vibrators
Reexamination Certificate
2009-11-04
2011-11-01
Enad, Elvin G (Department: 2832)
Music
Instruments
Rigid vibrators
C084S403000, C084S410000
Reexamination Certificate
active
08049089
ABSTRACT:
A keyboard percussion instrument may include an improved dampening system that provides wave dampening or progressive dampening of the tone bars. A keyboard percussion instrument may also include a dampening system with a mechanism capable of retracting the damper without distorting the damper and capable of adjusting the leverage of the dampening system independently of the spring tension. A dampening system may further include an adjustable mounting for the damper that allows the dampening action to be adjusted at either end of the damper. A keyboard percussion instrument may further include an improved bar rail assembly that facilitates removability, adjustment of various dampening zones and/or vibration isolation.
REFERENCES:
patent: 1763526 (1930-06-01), Jones
patent: 1801422 (1931-04-01), Gladstone
patent: 1807057 (1931-05-01), Bowers
patent: 1843553 (1932-02-01), Gladstone
patent: 1902614 (1933-03-01), Bower
patent: 2133712 (1938-10-01), Musser
patent: 2194545 (1940-03-01), Firestone
patent: 2556342 (1951-06-01), Dickran
patent: 2795162 (1957-06-01), Eash
patent: 3138986 (1964-06-01), Musser
patent: 3649737 (1972-03-01), Jespersen
patent: 3742984 (1973-07-01), Wilkins et al.
patent: 3807345 (1974-04-01), Peterson
patent: 3858477 (1975-01-01), Kawakami
patent: 4324164 (1982-04-01), Monte et al.
patent: 4570525 (1986-02-01), Suzuki
patent: 4619178 (1986-10-01), Kondoh
patent: 4913023 (1990-04-01), Mizuguchi et al.
patent: 4941386 (1990-07-01), Stevens
patent: 5189236 (1993-02-01), Stevens
patent: 5977465 (1999-11-01), Piper
patent: 6151723 (2000-11-01), MacAllister
patent: 6245978 (2001-06-01), Stevens
patent: 7361822 (2008-04-01), Hsieh
patent: 7732691 (2010-06-01), Stevens et al.
patent: 2002/0073824 (2002-06-01), Adams
patent: 2010/0107852 (2010-05-01), Stevens
patent: 2010/0192749 (2010-08-01), Sims
patent: 2010/0326261 (2010-12-01), Stevens et al.
“Vander Plas Percussion Discussion Board Web Pages,” retrieved on Jan. 8, 2007 (pp. 1-9).
Enad Elvin G
Grossman Tucker Perreault & Pfleger PLLC
Horn Robert W
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