Method of making a coated porous metal panel

Details Method of making a coated porous metal panel Method of making a coated porous metal panel

1992-02-28

1993-03-23

Cuda, Irene

Metal working

Method of mechanical manufacture

Structural member making

29460, 427282, B23P 1102

Patent

active

051952432

ABSTRACT:
A coated porous metal panel includes a first outer surface on one side of the panel, a second outer surface on the other side of the panel, a plurality of laterally offset discharge and inlet pores in respective ones of the first and the second outer surfaces, an internal chamber in the panel communicating with each of the inlet and discharge pores so that tortuous gas flow paths are defined through the porous metal panel, and a shield lamina mechanically clamped against the second outer surface. The shield lamina has shield pores aligned with the inlet pores to permit gas flow into the inlet pores. A plurality of extraction passages are formed in the panel between the internal chamber and the second outer surface and directly behind each of the discharge pores. When the coating material is sprayed on the first outer surface with the shield lamina not attached to the panel, surplus coating entering the discharge pores passes through the extraction passages for collection behind the panel. The shield lamina blocks the extraction passages to prevent gas flow into the extraction passages and short circuiting of the tortuous gas flow paths in the porous metal panel.

REFERENCES:
patent: 4323593 (1982-04-01), Tsunashima
patent: 4422082 (1983-12-01), Louzil
patent: 4426762 (1984-01-01), Schnedecker
patent: 4803110 (1989-02-01), Ahn et al.
patent: 5111579 (1992-05-01), Anderson

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