Conveyors: power-driven – Conveyor section – Reciprocating conveying surface
Patent
1993-07-02
1994-08-09
Bidwell, James R.
Conveyors: power-driven
Conveyor section
Reciprocating conveying surface
198757, B65G 2702
Patent
active
053357795
ABSTRACT:
A vibratory bowl feeder with a track extending generally helically upwardly on the inside of the bowl and then generally helically downwardly on the outside of the bowl and a return pan on the exterior of the bowl for returning parts to the bottom of the bowl, the track, return pan and bottom having smooth part support surfaces with perforations uniformly arranged over their entire surface areas, the perforations having a size substantially less than the size of the parts and covering at least approximately 40% of the total area to reduce the area of contact between the parts and support surface so that the parts are propelled upwardly from the support surface with greater effect during the advancement phase of vibratory movement to enable the support surface to be retracted below the parts during the retraction phase of vibratory movement. The bottom, in lieu of bottom perforations, has a raised spiral rib with evenly spaced convolutions.
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Bidwell James R.
Spirol International Corporation
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