Conveyors: fluid current – Having means for maintaining load in suspension along flow path – Including permeable member
Patent
1981-05-22
1984-03-27
Nase, Jeffrey V.
Conveyors: fluid current
Having means for maintaining load in suspension along flow path
Including permeable member
406 90, B65G 5338
Patent
active
044390726
ABSTRACT:
A fluidized bed discharge bin comprises a removable closure covering an opening in the bottom of the bin. The interior surface of the closure is covered by an air-permeable sheet whose outer perimeter is held between the bin opening and the closure. Spacing means are disposed on the surface of the closure to space at least a portion of the air-permeable sheet from the closure. Aerating fluid is introduced into the bin via an inlet in the closure which is located in close proximity to the location where the spacing means is spacing the air-permeable sheet from the interior surface of the closure. The aerating blower system includes a control for supplying aerating fluid to the bin in the form of successive aerating pulses and provision is made for causing an initial surge of pressure to be imparted to the beginning of each aerating pulse which is greater than the nominal aerating pressure. Plural embodiments of the invention are disclosed.
REFERENCES:
patent: 3253750 (1966-05-01), Paton
patent: 3438682 (1969-04-01), Mohrhusen
patent: 3659752 (1972-05-01), Carney, Jr. et al.
patent: 4353668 (1982-10-01), Anderson
Hoover Universal Inc.
Nase Jeffrey V.
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