Conveyors: fluid current – Intake to fluid current conveyor – Load receptacle type
Reexamination Certificate
2000-05-01
2001-04-17
Ellis, Christopher P. (Department: 3651)
Conveyors: fluid current
Intake to fluid current conveyor
Load receptacle type
C406S153000, C406S134000
Reexamination Certificate
active
06217261
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to aerated discharge devices that are used in connection with material transfer tanks, or storage tanks, or vessels, such as typically used for transporting, aerating and discharging bulk materials therefrom. But more particularly pertains to a discharge outlet assembly which is formed from an external outer cone which houses an internal cone, and facilitates the flow and discharge of bulk material and the like through a discharge opening in a bulk material container or hopper.
BACKGROUND OF THE INVENTION
In the past many attempts have been made to improve aeration discharge devices such as those used in connection with bulk material containers, as there is a great need for improvement in this area. Unfortunately, most discharge devices of this nature have inherent problems and disadvantages that heretofore have not been resolved in a cost effective or efficient manner.
For example, U.S. Pat. Nos. 3,092,010; 3,343,888; 3,829,022; 3,264,037 and 4,186,262 all teach various devices used for introducing air or sonic waves into the bulk material product within the storage chamber in order to break-up product blockage and facilitate the free flow of bulk material through a discharge opening in the storage chamber. However, each of these references have inherent disadvantages which the present invention addresses, recognizes, and resolves in a unique manner which heretofore has not been incorporated.
For example, within the known prior art there are still difficulties regarding various conditions commonly known in the field as arching, bridging, “rat-holing” and the like, which the present invention addresses and overcomes.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide an aeration discharge outlet assembly for bulk material containers which is economical, is very efficient, and overcomes the inherent disadvantages known within the prior art.
It is another object of the present invention is to provide an aeration discharge outlet assembly for bulk material containers which is of simple construction and eliminates unnecessary parts which are inherent within the existing discharge apparatuses currently available.
Still another object of the present invention is to provide an aeration discharge outlet assembly for bulk material containers which increases overall efficiency and profitability with faster, more complete product unloading than known prior art constructions.
Yet another object of the present invention is to provide an aeration discharge outlet assembly for bulk material containers which provides increased distribution of air flow throughout the discharge outlet.
Also another object of the present invention is to provide an aeration discharge outlet assembly for bulk material containers which eliminates or prevents product contamination while meeting FDA standards over a wide range of bulk material products.
Still a further object of the present invention is to provide an aeration discharge outlet assembly for bulk material containers which is competitively priced with existing prior art units, while being more durable and longer lasting in use.
Another object of the present invention is to provide an aeration discharge outlet assembly for bulk material containers which is interchangeable with other prior art devices in the field, thus allowing customers to readily install the present invention onto their existing equipment, without requiring substantial modification.
Yet another object of the present invention is to provide an aeration discharge outlet assembly for bulk material containers which does not require complicated installation or continuous maintenance.
Also another object of the present invention is to provide an aeration discharge outlet assembly for bulk material containers which is extremely durable in operation and does not require frequent replacement.
Other objects and distinct advantages will be seen when taken into consideration with the following drawings and specification.
REFERENCES:
patent: 337388 (1886-03-01), Fernald et al.
patent: 1982128 (1934-11-01), Vetrano
patent: 2500271 (1950-03-01), Bozich
patent: 3149884 (1964-09-01), Jones
Malugani Jack R.
Santa Cruz Cathy D.
Dillon, Jr. Joe
Ellis Christopher P.
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