Golden ratio air vent holes

Details Golden ratio air vent holes Golden ratio air vent holes

2007-04-17

2009-02-03

Lockett, Kimberly R (Department: 2837)

Music

Instruments

Drums

Reexamination Certificate

active

07485791

ABSTRACT:
A drum comprising a hollow drum shell having opposite ends and first and second drumheads closing said opposite ends. At least one air vent opening is provided through the drum head for acoustic venting, such that at least one air vent opening is located at a position distanced from at least one of said opposite end by a preset distance range of distances calculated by using the Golden Ratio and an acceptable margin or range of variation therefrom.

REFERENCES:
patent: 4660455 (1987-04-01), Jones et al.
patent: 5419230 (1995-05-01), Ocheltree et al.
patent: 5546841 (1996-08-01), Chen
patent: 6057499 (2000-05-01), Basmadjian
patent: 6121528 (2000-09-01), May
patent: 6211448 (2001-04-01), Shigenaga et al.
patent: 6380468 (2002-04-01), Shigenaga
patent: 6927330 (2005-08-01), May
patent: 2004/0261603 (2004-12-01), May
patent: 2005/0120863 (2005-06-01), Dunnett
patent: 2005/0188816 (2005-09-01), May

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