Delivery system for an agricultural implement

• US 5,655,468 A
• Filed: 05/17/1995
• Issued: 08/12/1997
• Est. Priority Date: 05/17/1995
• Status: Expired due to Term

• Current Assignee: Blue Leaf IP Incorporated (CNH Industrial N.V.), CNH Industrial America LLC (CNH Industrial N.V.)
• Original Assignee: Case Corporation (CNH Industrial N.V.)
• Inventors: Ledermann, Donald L., Stufflebeam, John F.
• Primary Examiner(s): Melius, Terry Lee
• Assistant Examiner(s): Novosad, Christopher J.
• Application Number:
  US08/447,065
• Time in Patent Office: 818 Days
• Field of Search: 111/174, 111/175, 111/176, 111/179, 111/185, 111/164, 222/522, 222/630, 222/195, 222/637, 221/211, 285/253, 285/260, 285/176, 285/177, 285/8
• US Class Current: 111/164
• CPC Class Codes: A01C 7/044 Pneumatic seed wheels

Abstract

A system is provided for delivering particulate material from a material storage hopper to a remote discharge station on a wheeled frame structure of an agricultural implement. The system includes a material dispensing mechanism, a connector, and an elongated material conveying tube. The dispensing mechanism is adapted to receive material from the hopper and dispense the material through an outlet conduit. The outlet conduit is directed at an angle relative to the discharge station. The conveying tube delivers material from the dispensing mechanism to the discharge station. The connector interconnects the outlet conduit to one end of the tube and has a passageway therethrough to allow material to pass from the outlet conduit to the tube. The connector is configured to direct the axis of the tube generally closer to the discharge station relative to the axis of the outlet conduit. Thus, material is propelled through the outlet conduit at an angle relative to the discharge station, changes direction toward the discharge station, and flows through the tube to said discharge station.

Claims

1. A system for delivering particulate material from a material storage hopper to a remote discharge station on a wheeled frame structure of an agricultural implement, said delivery system comprising:

a material dispensing mechanism adapted to receive material from said hopper and dispense said material through an outlet conduit directed at an angle relative to the discharge station;

an elongated material conveying tube extending substantially the entire distance between the outlet conduit and the discharge station for delivering material from said dispensing mechanism to said discharge station, said conveying tube having a material flow entry end adjacent the dispensing mechanism and a material flow exit end adjacent the discharge station; and

a connector interconnecting the outlet conduit to said material flow entry end of the tube and having a passageway therethrough to allow material to pass from said outlet conduit to said tube, said connector configured with a bend in order to direct the axis of the tube generally closer to the discharge station relative to the axis of the outlet conduit, whereby material is propelled through the outlet conduit at an angle relative to the discharge station, changes direction toward the discharge station, and flows through the tube to said discharge station.

2. The system of claim 1 wherein the bend in the connector is at least 40 degrees.

3. The system of claim 1 wherein the connector bends in a curvilinear fashion.

4. The system of claim 1 wherein the connector is tubular.

5. The system of claim 4 wherein the connector has a body and opposing end portions, each end portion having an inner diameter which is larger than the inner diameter of the body for telescopically receiving the respective outlet conduit and tube, whereby the outlet conduit, connector body, and tube provide a generally continuous and unobstructed conduit through which the material can flow unobstructed.

6. The system of claim 5 wherein a shoulder is defined by the transitions between the inner diameter of the body and the inner diameters of each end portion, each shoulder acting as a stop for the respective tube and outlet conduit.

7. The system of claim 5 wherein the inner diameters of the end portions of said connector are of different size to define a larger diameter end portion and a smaller diameter end portion, and the inner diameter of the body decreases over its length from the larger diameter end portion to the smaller diameter end portion.

8. The system of claim 5 further comprising a pair of clamping devices operably engaging the end portions of the connector to releasably hold the outlet conduit and tube.

9. The system of claim 1 wherein the connector has a semi-rigid body with a fixed curvilinear configuration such that end regions of said connector are positioned at a fixed angle relative to each other.

10. A system for delivering particulate material from a material storage hopper to a remote discharge station on a wheeled frame structure of an agricultural implement, said delivery system comprising:

a material dispensing mechanism adapted to receive material from said hopper and dispense said material through an outlet conduit, said outlet conduit attached to and extending outwardly from said dispensing mechanism at an angle relative to the discharge station;

an elongated material conveying tube extending substantially the entire distance between the outlet conduit and the discharge station for delivering material from said dispensing mechanism to said discharge station, said conveying tube having a material flow entry end and a material flow exit end; and

a tubular connector having a body and opposing end portions for interconnecting the outlet conduit to the material flow entry end of the tube, said end portions having inner diameters larger than the inner diameter of said body for telescopically receiving the outlet conduit and said tube, whereby the outlet conduit, connector body, and tube provide a generally continuous and unobstructed conduit through which the material flows.

11. The system of claim 10 wherein the connector bends in a curvilinear fashion in order to direct the axis of the tube generally closer to the discharge station relative to the axis of the outlet conduit.

12. The system of claim 10 wherein a shoulder is defined by the transitions between the inner diameter of the body and the inner diameters of each end portion, each shoulder acting as a stop for the respective tube and outlet conduit.

13. The system of claim 10 wherein the inner diameters of the end portions of said connector are of different size to define a larger diameter end portion and a smaller diameter end portion, and the inner diameter of the body decreases over its length from the larger diameter end portion to the smaller diameter end portion.

14. The system of claim 10 further comprising a pair of clamping devices operably engaging the end portions of the connector to releasably hold the outlet conduit and tube.

15. The system of claim 10 wherein the connector is made of a semi-rigid elastomeric material.

16. A system for delivering particulate material from a material storage hopper to a remote discharge station on a wheeled frame structure of an agricultural implement, said delivery system comprising:

a material dispensing mechanism adapted to receive material from said hopper and dispense said material through an outlet conduit, said outlet conduit attached to and extending outwardly from said dispensing mechanism at an angle relative to the discharge station;

an elongated material conveying tube extending substantially the entire distance between the outlet conduit and the discharge station for delivering material from said dispensing mechanism to said discharge station, said conveying tube having a material flow entry end adjacent the dispensing mechanism and a material flow exit end adjacent the discharge station; and

a tubular connector having a body and opposing end portions for interconnecting the outlet conduit to the material flow entry end of the tube, said body bending in a curvilinear fashion to direct the axis of the tube generally closer to the discharge station relative to the axis of the outlet conduit, and said end portions having inner diameters larger than the inner diameter of said body for telescopically receiving the outlet conduit and said tube, whereby the outlet conduit, connector body, and tube provide a generally continuous conduit through which the material can flow unobstructed.

17. The system of claim 16 wherein the connector has at least a 40 degree bend.

18. The system of claim 16 further comprising a pair of clamping devices operably engaging the end portions of the connector to releasably hold the outlet conduit and tube.

19. The system of claim 18 wherein each end portion of the connector has a longitudinal slot formed therein to allow said end portions to contract when clamped by the clamping devices.

20. The system of claim 19 wherein each clamping device comprises an annular band and the ends of the connector have an annular seat formed thereon for locating said annular bands.

21. The system of claim 16 wherein the connector is made of a semi-rigid elastomeric material.

22. The system of claim 16 wherein the connector defines shoulders at the transitions between the inner diameter of the body and the inner diameters of the end portions, said shoulders acting as a stop for the respective tube and outlet conduit.

23. The system of claim 22 wherein the inner diameters of the end portions of said connector are of different size to define a larger diameter end portion and a smaller diameter end portion, and the inner diameter of the body decreases over its length from the larger diameter end portion to the smaller diameter end portion.

24. The system of claim 23 wherein the connector has uniform outer diameter.

25. The apparatus of claim 16 wherein the connector is formed by an injection molding process.