TREA

Dynamic ring classifier for a coal pulverizer

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Information

  • Patent Grant
  • D575807
  • Patent Number
    D575,807
  • Date Filed
    Monday, July 2, 2007
    18 years ago
  • Date Issued
    Tuesday, August 26, 2008
    17 years ago
  • US Classifications
    Field of Search
    • US
    • D15 123
    • D15 126
    • D15 138
    • D15 139
    • 209 134000
    • 209 139100
    • 209 713000
    • 241 052000
    • 241 056000
    • 241 061000
    • 241 079100
    • 241 080000
    • 241 082000
    • 241 188100
    • 241 188200
    • 241 190000
    • 241 194000
    • 241 197000
    • 241 300000
    • 251 214000
    • 251 305000
    • 277 399000
    • 384 147000
    • 384 207000
  • International Classifications
    • 1509
    • Term of Grant
      14Years
Information
Abstract
Description


FIG. 1 is a perspective view of a classifier assembly according to an embodiment of the present invention.



FIG. 2 is a rear view of the classifier assembly of FIG. 1, illustrating the adjustable flange, radially outward extending elongate arms, rotator and stator.



FIG. 3 is a section of the stator and rotator portions of the classifier assembly of FIG. 1 within an enlarged partial detailed view, illustrating the labyrinth seal formed by the stator and rotator; and,



FIG. 4 is a section of the stator and rotator portions of the classifier assembly of FIG. 1 within an enlarged partial detailed view, illustrating the stator and rotator in cross section forming a labyrinthian seal.


The broken lines showing are for illustrative purposes only, to show the environment of the dynamic ring classifier in a coal pulverizer, and form no part of the claimed design.


Claims
  • The ornamental design for a dynamic ring classifier for a coal pulverizer, as shown and described in the attached specification.
US Referenced Citations (27)
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2625332 Rogers et al. Jan 1953 A
2628038 Rogers et al. Feb 1953 A
2639863 Rogers May 1953 A
3050018 Pearson Aug 1962 A
3092337 Patterson Jun 1963 A
4424938 Day Jan 1984 A
4485975 Eigner et al. Dec 1984 A
4504019 Newell et al. Mar 1985 A
4919795 Fujii et al. Apr 1990 A
5025930 Barthelmess et al. Jun 1991 A
5289978 Lundquist Mar 1994 A
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5560550 Krawczyk Oct 1996 A
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6443376 Huang et al. Sep 2002 B1
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7118055 Chang Oct 2006 B2
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7311281 Schmitz et al. Dec 2007 B2
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Continuations (2)
Number Date Country
Parent 11405232 Apr 2006 US
Child 29289038 US
Parent 10699982 Nov 2003 US
Child 11405232 US