Method of forming a non-tunable head

Details Method of forming a non-tunable head Method of forming a non-tunable head

1981-04-03

1982-11-02

Hartary, Joseph W.

Music

Instruments

Drums

84414, 264342R, G10D 1302, B29C 2500

Patent

active

043567568

ABSTRACT:
A method of forming a non-tunable head for a drum, banjo, tambourine, or similar musical instrument is described. A highly oriented crystalline polymeric film is immersed into a liquid solvent bath containing a halogenated methane compound until the film swells to become sufficiently soft so that it can be draped. The film is then removed from the solvent bath and preferably mechanically wiped to remove solvent remaining on its surface. The film is securely attached to an annular member before it dries, and is then dried by allowing the solvent to evaporate. As the film dries, it shrinks to substantially its original dimensions to provide a constant tension in the head. The heads formed by this method have sufficient tension to provide an effective musical tone without the utilization of clamping or stretching means which must be periodically readjusted to maintain a desired tension in the head.

REFERENCES:
patent: 233604 (1880-10-01), Deutsch
patent: 627766 (1899-06-01), Wilken
patent: 729936 (1903-06-01), Haybeck
patent: 1018767 (1912-02-01), Logan
patent: 1809050 (1931-06-01), Logan
patent: 2018182 (1935-10-01), Logan
patent: 2034716 (1936-03-01), Dreyfus
patent: 2110029 (1938-03-01), Shastock
patent: 2655071 (1953-10-01), Levay
patent: 2667098 (1954-01-01), McMullen
patent: 2830484 (1958-04-01), Erwin
patent: 2934989 (1960-05-01), Belli
patent: 2979981 (1961-04-01), Ludwig
patent: 2981978 (1961-05-01), Griffing
patent: 3250169 (1966-05-01), Stone
patent: 3272057 (1966-09-01), Saito
patent: 3285117 (1966-11-01), Cheslow
patent: 3362275 (1968-01-01), Koishikawa
patent: 3405586 (1968-10-01), Koishikawa
patent: 3418877 (1968-12-01), Ito
patent: 3425309 (1969-02-01), Elzas
patent: 3459093 (1969-08-01), Nishiura
patent: 3492904 (1970-02-01), Koishikawa
patent: 3647931 (1972-03-01), Koishikawa
patent: 3668296 (1972-06-01), Criscuolo

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