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Patent Searching and Data


Title:
POWDER AND GRANULAR MATERIAL FEEDER
Document Type and Number:
WIPO Patent Application WO/2007/020851
Kind Code:
A1
Abstract:
A powder and granular material feeder for constantly feeding powder and granular material with poor fluidity discharged to an annular passage (space part (D) between inner and outer tubes) through a clearance between the lower end (3") of the inner tube (3) and a bottom plate (1) from a fall opening (8) at the space part (D) to the outside of the feeder by scraping plates (11) just below the fall opening (8). The fall opening (8) is formed in a circular arc shape starting at the outside of the outer tube (2) to the inner tube (3) or to the inside of the inner tube (3), and the scraping plates (11) are formed on a small cylinder (9) formed about the center of the curvature (C') of the circular arc shape. Furthermore, the powder and granular feeder is characterized in that the rotating directions of the scraping plates (11) and spokes (5) are reverse to each other at the portion of the fall opening (8), and the powder and granular material fed by the spokes (5) and inward claws (7) into the fall opening (8) is discharged in the revere direction of the feeding direction by the scraping plates (11) in the state of being leveled with the lower edge (2") of the outer tube (2).

Inventors:
YOSHIKAWA, Osamu (713-2, Higashiooshoji-cho Satsumasendai-sh, Kagoshima 75, 8950075, JP)
Application Number:
JP2006/315742
Publication Date:
February 22, 2007
Filing Date:
August 09, 2006
Export Citation:
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Assignee:
YOSHIKAWA CORPORATION (360-31, Minato-cho Satsumasendai-sh, Kagoshima 24, 8991924, JP)
株式会社ヨシカワ (〒24 鹿児島県薩摩川内市港町360番31 Kagoshima, 8991924, JP)
International Classes:
B65G65/48
Foreign References:
JP3401233B2
JPH0647860Y2
JPS5971219U
JPS5827225U
JPH0647860Y2
JPH03130237U
JP3139903B2
JPH07187405A
JP3401233B2
JP2002002965A
Other References:
See also references of EP 1939120A1
Attorney, Agent or Firm:
SOGA, Michiteru et al. (S. Soga & Co, 8th Floor Kokusai Building, 1-1,Marunouchi 3-chome, Chiyoda-k, Tokyo 05, 1000005, JP)
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