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Powder container having a lower part with a trapezoid-shaped cross-section

  • US 7,515,855 B2
  • Filed: 09/29/2006
  • Issued: 04/07/2009
  • Est. Priority Date: 04/12/2002
  • Status: Expired due to Term
First Claim
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1. A powder container, comprising:

  • an upper section configured to store powder;

    a lower section, connected to the upper section, configured to discharge powder, the lower section having a trapezoid-shaped cross-section, a width of the trapezoid-shaped cross-section at an upper portion being greater than a width of the trapezoid-shaped cross-section at a lower portion, the lower section including an opening in the trapezoid-shaped cross-section which discharges powder in a direction perpendicular to the trapezoid-shaped cross-section; and

    a shutter for sealing and unsealing said opening.

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