Hopper tee having drop opening with arcuate closure

• US 20160200506A1
• Filed: 07/22/2015
• Published: 07/14/2016
• Est. Priority Date: 02/03/2009
• Status: Active Grant

• Current Assignee: Bulk Tank, Inc.
• Original Assignee: Bulk Tank, Inc.
• Inventors: Sisk, David E.
• Granted Patent: US 10,040,626 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B65D 88/28 Construction or shape of discharge section
• CPC Class Codes: B65D 90/623 having a rotational motion
• CPC Class Codes: F16L 41/021 T- or cross-pieces F16L41/025, F16L41/026, F16L41/028 take precedence

Abstract

A directional hopper tee has a fluted interior vertical pipe that merges into a horizontal pipe. The horizontal pipe has an inlet that may receive bulk material, and subject to pressurized air that conveys the bulk material through the hopper tee. Bulk material may be discharged from a hopper through the vertical pipe, for conveyance for discharge from the horizontal pipe of the tee. A closure gate or door is provided through the bottom of the tee, generally in alignment with the vertical pipe, to allow for discharge or dropping of the granular material directly downwardly through and from the tee. The arcuate door is hinged on one side, and is locked by a cam lock on the opposite side, when located into closure against the bottom of the tee, but can be forced opened, through its cam mechanism, to provide for opening of the arcuate door and allow a direct downward discharge of the granular bulk material, from any hopper, and through the drop opening of the tee, as required.

Claims

1. An integral tee directing the flow of bulk material from a container, located above a horizontal surface of the ground, into a horizontal unloading system using pressurized air or gravity, said tee providing for the vertical discharge of the bulk material from a container, the horizontal unloading system having an upstream and an opposite downstream flow for bulk material therefrom, said integral tee increasing a rate of unloading the bulk material from the container and having a ground clearance, comprising:

a flange, generally planar, having a top surface, and an opening through said flange, said opening communicating with said container for passage of bulk material therefrom and through said integral tee;

a vertically directed hollow pipe extending from said flange and centered upon said opening;

a transverse hollow pipe joining to said vertically directed hollow pipe at a juncture opposite said flange, generally parallel to said flange, said transverse hollow pipe including an inlet adapted to receive bulk material or pressurized airflow from upstream in the horizontal unloading system, an opposite outlet adapted to discharge bulk material downstream from said integral tee into the horizontal unloading system, and said transverse hollow pipe having a diameter;

said transverse hollow pipe having a drop opening therein generally opposite said flange and corresponding in width approximately to the diameter of the opening in said flange;

a door closing upon said tee drop opening and sealing said drop opening when said door is closed, said door having an interior surface, said interior surface attaining an approximate flush position with the interior of said transverse hollow pipe wherein the bulk material flows smoothly over said door to prevent leakage of bulk material from said integral tee when discharged through said transverse hollow pipe;

said door being arcuate, to conform to the drop opening and the bottom of said tee, said door including at least one hinge, proximate one end of said door, and said hinge attaching to the approximate edge of said door on one side, and said hinge attached to said tee, to provide for a pivotal opening of said door with respect to said tee to allow for a vertical discharge of bulk material from said container and through said drop opening of said tee when the door is opened;

a cam lock pivotally attached to the opposite edge of said door, and including a bail for engagement with the opposite side of said tee wherein when said cam lock is engaged through its bail with said tee, and the cam lock pivoted, providing for a locked closure of the arcuate door against the bottom opening of said tee during usage;

wherein said transverse hollow pipe having at least one integral ear extending approximately diagonally from each of its sides, said at least one integral ear on one side engaging said arcuate door through the hinge to the tee, the opposite edge of said door engaging through said bail with the at least one ear extending from the opposite side of said tee, said cam lock capable of locking said arcuate door into a closed position, and said cam lock capable of being opened, to release said bail from the cam lock, to provide for full opening of said arcuate door;

wherein said bail pivotally connecting with the at least one integral ear on one side of said tee, connecting to the proximate edge of said door, and connecting upon said cam lock when the arcuate door is locked into closure through the pivotal manipulation of said cam lock; and

wherein said arcuate door having an internal curved surface with a radius of curvature which is the same as a radius of curvature transverse hollow pipe at it'"'"'s drop opening, said curved surface of the arcuate door having structure applied thereto, which when the arcuate door is closed upon the tee drop opening, provides sealed closure for the transverse hollow pipe to prevent the vertical discharge of any bulk material therethrough from the container.

2. The flow directing integral tee of claim 1 wherein said vertically directed hollow pipe having an internally located flute therein curving immediately from said opening in said flange towards said outlet, said flute forming a transition between said flange, said vertically directed hollow pipe, and said transverse hollow pipe, said flute having a width equal to a diameter of said flange opening and narrowing to a width equal to the diameter of said transverse hollow pipe, said flute rounding the juncture of said vertically directed hollow pipe and said transverse hollow pipe, and said transition having a generally internal convexed shape;

said flute having a flute line extending from said top surface of said flange through said vertically directed hollow pipe then curving into said transverse hollow pipe, said flute accelerating and turning the flow of bulk materials towards the outlet of said transverse hollow pipe;

said vertically directed hollow pipe at said juncture having a generally curved shape towards said outlet and a generally square shape towards said inlet, said curved shape rounding the juncture of said vertically directed hollow pipe and said transverse hollow pipe; and

whereby the flow of granular material through the tee is accelerated thereby increasing the rate of unloading of the bulk material from the container.

3. The flow directing integral tee of claim 2 wherein during usage the ground clearance is at least seven inches.

4. The flow directing integral tee of claim 1 wherein said arcuate door capable of being reversed in its locating upon the bottom of said tee, with the hinge means being engaging with the first said extending ear, and the cam lock engaging with the at least one ear extending from the opposite side of said tee during installation and usage.

5. The flow integral tee of claim 4 wherein each of said at least one extending ear comprises a pair of integrally extending ears, extending approximately diametrically from each side of the said tee, with the hinge located between the pair of ears on one side of the tee, and the cam locking bail pivotally connecting to the said pair of ears extending from the opposite side of said tee.