Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Making hole or aperture in article
Patent
1993-09-08
1995-11-14
Davis, Robert B.
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Making hole or aperture in article
264279, B29C 4514
Patent
active
054664080
ABSTRACT:
Basket for a domestic centrifuge has a screen (2) having a finely perforated surface of revolution and including two annular reinforcing rings (3 and 4) disposed on the circular borders (5, 6). The screen (2) is of plastic material and the fine perforations (7, 10, 10') obtained by a process of mechanical cutting out. Thus the fine perforations (7, 10, 10') can be obtained by punching, or by cutting with a laser beam. The fine perforations (7, 10, 10') have borders with sharp edges that are directed radially inwardly, to assist in juicing. The plastic material is a polyester. The screen (2) of polyester has a wall thickness of between 0.15 mm and 0.30 mm.
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Davis Robert B.
Moulinex (Societe Anonyme)
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