Drum shell formation

Details Drum shell formation Drum shell formation

2011-05-17

2011-05-17

Ross, Dana (Department: 3725)

Woodworking

Process

Mechanical cutting or shaping

Reexamination Certificate

active

07942176

ABSTRACT:
In the method of forming a drum shell that consists of plywood, the steps that includes forming the shell under pressure and heat into cylindrical configuration, providing inner and outer cooling platens adapted to respectively engage the interior and exterior surfaces of the heated shell, trapping the heated shell between the platens, at elevated pressure, allowing the shell to cool by heat transfer from shell side wall or walls into pressure exerting side walls, and while trapped between such platens, at elevated pressure, and removing the cooled shell from between the cooling platens.

REFERENCES:
patent: 1379203 (1921-05-01), Mundale
patent: 2279820 (1942-04-01), Hamilton
patent: 2311561 (1943-02-01), Miller
patent: 2365754 (1944-12-01), Gramelspacher
patent: 2458864 (1949-01-01), Lindsay
patent: 2459316 (1949-01-01), Gramelspacher
patent: 3087390 (1963-04-01), Ruza
patent: 3268635 (1966-08-01), Kraus et al.
patent: 3351978 (1967-11-01), Kraus et al.
patent: 3776679 (1973-12-01), Hegler
patent: 3784152 (1974-01-01), Garner et al.
patent: 4102236 (1978-07-01), North
patent: 5059109 (1991-10-01), Dickhut et al.
patent: 5123465 (1992-06-01), Gabriel
patent: 5573787 (1996-11-01), Lupke et al.
patent: 5871171 (1999-02-01), Kenney et al.
patent: 6126560 (2000-10-01), Maruoka et al.
patent: 6652258 (2003-11-01), Starita
patent: 7081576 (2006-07-01), Daoud

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