Drum

Details Drum Drum

2006-11-07

2009-02-10

Benson, Walter (Department: 2837)

Music

Instruments

Drums

C084S413000, C084S419000

Reexamination Certificate

active

07488882

ABSTRACT:
An improved drum includes a substantially cylindrical drum shell having a drum head and containing a mechanical voice system including strings, and a mechanical tuning system for adjusting tension of the drum head and the strings, and a spring housing serving as a base of the drum and containing shock absorbers, base extensions for stability, and pedals for mechanical note changes.

REFERENCES:
patent: 1755569 (1930-04-01), Strupe
patent: 1845625 (1932-02-01), Robison
patent: 3008367 (1961-11-01), Parsons
patent: 3188687 (1965-06-01), Blair
patent: 3290979 (1966-12-01), Glass et al.
patent: 3685389 (1972-08-01), Bemben
patent: 4048895 (1977-09-01), May
patent: 4112807 (1978-09-01), Quibell
patent: 5610350 (1997-03-01), Miller
patent: 6441286 (2002-08-01), Brando et al.
patent: 7288707 (2007-10-01), Swinkels
patent: 2008/0034944 (2008-02-01), Aspland
patent: 2008/0083317 (2008-04-01), Payerl
patent: 2008/0121088 (2008-05-01), Curet Troche
patent: 3332 (1810-01-01), None
Sebastian Erard, biography, inventor of the pedal harp in 1810, http://www.pianorestaurateur.nl/erard—biografie.htm, viewed Dec. 14, 2007.
Pianoforte, reference to Sebastian Erard, Encyclopedia Britannica, published 1907 by the Werner, Company, Akron, Ohio., p. 83.
Harp History, Double Action Harp description, invented in 1810 by Sebastian Erard, p. 2; also photo of a rare Erard Freres (brothers) harp, showing pedals for note changing, http://www.vanderbiltmusic.com/harp—history.php, viewed Dec. 14, 2007.

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