Dispensing – With casing or support – For bottom discharge dispenser supported on horizontal surface
Reexamination Certificate
1999-05-11
2001-12-11
Derakshani, Philippe (Department: 3754)
Dispensing
With casing or support
For bottom discharge dispenser supported on horizontal surface
C222S462000, C222S561000, C222S564000
Reexamination Certificate
active
06328183
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates in general to bulk material bins and, more particularly, to a mass flow bulk material bin.
Heretofore, bulk material bins for storing, handling and discharging dry powder and granules failed to unload completely without bridging. Vibrators were used in the bulk material bins for dry powder and granules to reduce bridging of the stored dry powder materials and granules during the discharge thereof from the bin.
In the U.S. patent to Johanson et al., U.S. Pat. No. 5,617,975, granted on Apr. 8, 1997, for Chip Feed System, there is disclosed a chip bin for uniformly discharging wood chips therefrom without a vibrator. The apparatus disclosed in the patent to Johanson et al., U.S. Pat. No. 5,617,975, employed a cylindrical bin and a conical transition section disposed below the cylindrical bin. In one embodiment, a baffle having triangular cross-sectional areas is disposed within the conical transition section. In another embodiment, the transition section is formed with triangular-shaped, flat side outer panels. The bins disclosed in the patent to Johanson, U.S. Pat. No. 5,617,975, are intended to address the problem of reliability and maintenance of conventional vibratory discharges and the problems of chip bin pluggage, bridging and channeling.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a bin or container for storing bulk material, such as dry powder material and granules, and to unload the dry powder material and granules from the bin without a vibrator.
Another object of the present invention is to provide a bin or container for storing bulk material, such as dry powder material and granules, and to unload the dry powder material and granules from the bin without the dry powder material or the granules bridging within the bin.
A feature of the present invention is to provide a bulk material bin or container having an upper section and a lower section. The lower section is formed with a discharge compartment having a plurality of vertical walls joined with a downwardly declining sloping wall for discharging bulk material from the bin to reduce bridging of the bulk material within the bin.
A bulk material bin comprising an upper section and a lower section. Bulk material is deposited in the upper section of the bin and is discharged from the bottom of the lower section. The upper section of the bin is formed with rectangular cross-sectional areas. Bulk material passes freely from the upper section into the lower section. The lower section of the bin is formed with oppositely directed, downwardly, declining sloping walls joined by opposing vertical walls. Disposed in the lower section of the bin is a vertical, flat wall that engages the opposing vertical walls of the lower section and has the opposing vertical, flat surfaces thereof facing, respectively, the oppositely directed, downwardly declining sloping walls of the lower section for reducing bridging of the bulk material in the bulk material bin.
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Patent Abstracts of Japan; Japanese Published Application No. 11091869; Applicant: ASAHI BIRUTO KK; Published Apr. 6, 1999; Japanese Patent Office, Copyright 1999.
Article entitled Binside Scoop published by JR Johanson, Inc. during the Summer of 1993.
Article entitled Secrets of the Diamondback Hopper by JR Johanson, Inc., pp. 2 and 3.
Cypher Charles R.
Cypher James R.
Derakshani Philippe
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