Stock material or miscellaneous articles – Composite – Of carbohydrate
Patent
1992-09-28
1994-07-19
Ryan, Patrick J.
Stock material or miscellaneous articles
Composite
Of carbohydrate
84 13, 84 84, 84104, 84411R, 84423R, 291695, B32B 900
Patent
active
053308484
ABSTRACT:
A resonator body for musical drum instruments is formed by shaping and gluing together several superimposed material layers, particularly wood veneer layers or plywood layers. The resonator body has the shape of a hollow cylinder. Abutting edges of the individual material layers extend in the direction of the resonator body axis and the abutting edges of the individual material layers are offset relative to each other in circumferential direction of the hollow cylinder. In order to ensure that the abutting edges are permanently and securely held together, the abutting edges of at least the outer material layer, preferably of all material layers, have contours which are toothed and complementary relative to each other and inter-engage in circumferential direction of the hollow cylinder.
REFERENCES:
patent: 1381494 (1921-06-01), Olsen
patent: 1465215 (1923-08-01), Hall
Beuter Werner
Burkert Heinz
Kluczynski Roman
Lutter Johannes
Treude Horst
Bahta Abraham
Ryan Patrick J.
Sonor Johs. Link GmbH
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