Drumhead

Details Drumhead Drumhead

1997-05-15

1999-01-26

Shoop, Jr., William M.

Music

Instruments

Drums

84411M, G10D 1302

Patent

active

058640770

ABSTRACT:
A polymer film drumhead having indentations in the surface, the indentations placed strategically by size, number and placement near the periphery of the drumhead to control the vibrational characteristics and the overtone content of the drumhead when struck.

REFERENCES:
patent: 2934989 (1960-05-01), Belli et al.
patent: 2979981 (1961-04-01), Ludwig
patent: 3250169 (1966-05-01), Stone, Jr. et al.
patent: 3418877 (1968-12-01), Ito
patent: 4244266 (1981-01-01), Hardy
patent: 4254685 (1981-03-01), Rose
patent: 4779508 (1988-10-01), Beals
patent: 4805514 (1989-02-01), Billings
patent: 5159139 (1992-10-01), Beals et al.

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