Electric heating – Metal heating – By arc
Reexamination Certificate
2005-04-19
2005-04-19
Elve, M. Alexandra (Department: 1725)
Electric heating
Metal heating
By arc
C219S121680
Reexamination Certificate
active
06881924
ABSTRACT:
In a laser-cutting/carving machine, a structure of a platform and an air-collecting bin, wherein the machine body is provided therein with a laser-carving mechanism, the platform for a work piece and the air-collecting bin, the platform for the work piece is composed of a plurality of upright folded thin plates, and can contact with the work piece in a net-line contacting mode to enhance removing crumbs and smoke as well as fixing the work piece and fast heat sinking by air pressure acting downwards from above. The air-collecting bin can be opened downwardly or closed for the convenience of collecting the dropped materials of the work piece processed and clearing the wastes and crumbs generated in processing.
REFERENCES:
patent: 4985780 (1991-01-01), Garnier et al.
patent: 5906760 (1999-05-01), Robb et al.
patent: 6388228 (2002-05-01), Lai
patent: 20030066574 (2003-04-01), Lovchik et al.
patent: 20040040943 (2004-03-01), Lundberg
Dennison Schultz Dougherty & MacDonald
Elve M. Alexandra
Great Computer Corp.
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