Pneumatic distribution machine with a flat tube bend

• US 6,443,671 B1
• Filed: 08/11/2000
• Issued: 09/03/2002
• Est. Priority Date: 03/30/1998
• Status: Expired due to Fees

• Current Assignee: Helmut Weiste
• Original Assignee: Helmut Weiste
• Inventors: Weiste, Helmut
• Primary Examiner(s): Ellis, Christopher P.
• Assistant Examiner(s): DILLON JR, JOSEPH A
• Application Number:
  US09/622,114
• Time in Patent Office: 753 Days
• Field of Search: 406/92, 406/195
• US Class Current: 406/195
• CPC Class Codes: A01C 15/04 using blowers
• CPC Class Codes: A01C 7/082 Ducts, distribution pipes or details thereof for pneumatic seeders
• CPC Class Codes: A01C 7/084 Pneumatic distribution heads for seeders

Abstract

The invention is a pneumatic delivery line of a type used for distributing seeds or fertilizer. The pneumatic delivery line is guided to the distributor in an essentially vertical manner. The delivery line includes a flat tube bend at some point along its length. The delivery line may have an unevenly constructed inner wall.

Claims

1. Pneumatically operating distribution machine for distributing especially seeds or fertilizer, with a storage container for the goods to be distributed, a metering element that is connected thereto, and a distributor, which is connected to the metering element via a pneumatic delivery line, wherein from a turning point onwards the pneumatic delivery line describes a change of direction and leads to the distributor in an essentially vertical manner, characterized through the delivery line (1), which at the turning point (4) is formed as a flat tube bend (5), and through the unevenly-formed inner wall of the delivery line (1) formed between the flat tube bend (5) and the distributor as a dispersing tube (9).

2. Distribution machine according to claim 1, characterized through a rectangular cross section of the flat tube bend (5).

3. Distribution machine according to claim 1, characterized through an oval cross section of the flat tube bend (5).

4. Distribution machine according to claim 1, characterized through the cross section of the delivery line leading to the flat tube bend and the delivery line leading from the flat tube bend (5), which cross section is circular.

5. Distribution machine according to claim 1, characterized through the forming of the dispersion tube (9) as a corrugated tube.

6. Distribution machine according to claim 1, characterized through the asymmetrical junction of the flat tube bend (5) with the dispersing tube (9).

7. Distribution machine according to claim 6, characterized through the leading in of the outer-curve wall (10) of the flat tube bend (5) on a level with a central axis (11) of the dispersing tube (9).

8. Distribution machine according to claim 1, characterized through the at least partially unevenly-formed inner walls of the flat tube bend (5).

9. Distribution machine according to claim 8, characterized through the surface of the inner wall of the outside-curve wall (10) of the flat tube bend (5), which surface is unevenly formed.