Bark dust unloading system

• US 6,290,150 B1
• Filed: 04/05/2000
• Issued: 09/18/2001
• Est. Priority Date: 11/11/1999
• Status: Active Grant

• Current Assignee: Astec Industries Incorporated (Johnson Crushers International)
• Original Assignee: Jones, Dudley W.
• Inventors: Jones, Dudley W.
• Primary Examiner(s): Scherbel, David A.
• Assistant Examiner(s): Nguyen, Dinh Q.
• Application Number:
  US09/543,132
• Time in Patent Office: 531 Days
• Field of Search: 239/654, 239/676, 239/675, 239/680, 239/678, 406/32, 406/39, 406/48, 406/56, 406/65, 406/79, 406/164, 222/252, 414/523, 414/526
• US Class Current: 239/654
• CPC Class Codes: A01C 15/04 using blowers
• CPC Class Codes: A01C 15/18 with endless chains , i.e. side transporting elements, e.g. auger or screw conveyors, swash plates

Abstract

A bark dust unloading system has a mechanism for moving material in a container to an opening at the rear of the container. An auger assembly in combination with rotating rake assemblies move the material from the sides of the container to the opening. A blower assembly provides an air stream to transport the material deposited in the opening through a hose. The hose is used to distribute the material. An automatic control controls the operation of the unloading system including the movement of the material, the blower system, the augers and rake assemblies. A remote control allows the operator to alter the operations while directing placement of the bark dust. This provides for operation by a single operator.

Claims

1. A ground cover distribution system for distributing ground cover material comprising:

a mobile container for containing the material;

a distribution mechanism positioned at a rear end of said mobile container;

said container having vertical side walls and a floor extended between said vertical side walls and defining a floor width and a floor length that fully supports material contained in said container, said floor throughout said defined width and length being movable for moving material supported on said floor toward said rear end;

said distribution mechanism including an opening in the container at said rear end and a hose in communication with said opening for receiving material and a conveyor mechanism interposed between the opening and the hose that conveys material received from the container and directed through said opening into and through the hose to be deposited as ground cover; and

an automatic control controlling the movement of the mechanism, said control having detection capability detecting the presence of material accessible for deposit into the opening and responding thereto for alternately starting and stopping the mechanism.

2. A ground cover distribution system as defined in claim 1 wherein the distribution mechanism includes a double auger assembly extended laterally the width of the floor and adjacent the floor for directing material from the sides of the container to the opening, and further for cooperatively reducing and feeding the material into the opening between the augers.

3. A ground cover distribution system as defined in claim 1 wherein the detection capability of the control is provided by a pressure sensor that detects the presence of the material at the opening and including high and low pressure settings thereof to determine the stop and start movement of the material toward the opening.

4. A ground cover distribution system as defined in claim 1 including a remote control coupled to said automatic control to modify the settings and provide operator control of the material movement.

5. A ground cover distribution system as defined in claim 1 wherein the movable floor comprises:

a plurality of elongated slats aligned in the direction of movement in side-by-side relationship and arranged in repeating sequence of at least first, second and third slats, said slats independently movable along the elongated length a limited distance, each of the first slats tied together, each of the second slats tied together and each of the third slats tied together and a motor for each of said first slats, second slats and third slats, and a control for selective actuation of said motors for moving the first, second and third slats in unison toward the opening and for selectively and independently retracting said first, second and third slats away from said opening.

6. A ground cover distribution system for distributing ground cover material comprising:

a mobile container for containing the material;

a distribution mechanism positioned at an end of said mobile container;

a mechanism within the container for moving the material contained in the container toward said distribution mechanism;

said distribution mechanism including an opening in the container at said rear end and a hose in communication with said opening for receiving material and a conveyor mechanism interposed between the opening and the hose that conveys material received from the container and directed through said opening into and through the hose to be deposited as ground cover;

an automatic control controlling the movement of the mechanism, said control having detection capability detecting the presence of material accessible for deposit into the opening and responding thereto for alternately starting and stopping the mechanism; and

said mechanism removing the material being a movable floor comprising a plurality of elongated slats aligned in the direction of movement in side-by-side relationship and arranged in repeating sequence of at least first, second and third slats, said slats independently movable along the elongated length a limited distance, each of the first slats tied together, each of the second slats tied together and each of the third slats tied together and a motor for each of said first slats, second slats and third slats, and a control for selective actuation of said motors for moving the first, second and third slats in unison toward the opening and for selectively and independently retracting said first, second and third slats away from said opening.