David A Ernst

US Patent:

59801638, Nov 9, 1999

Filed:

Aug 18, 1997

Appl. No.:

8/912472

Inventors:

David Walter Gregor - Davenport IA
David Allen Ernst - Geneseo IL

Assignee:

Deere & Company - Moline IL

International Classification:

B65G 5342

US Classification:

406144

Abstract:

A distribution manifold is provided for dispensing product into an airstream. The distribution manifold has a venturi port which has a front surface and a rear surface, as well as an air passage extending between the front surface and the rear surface. Additionally, the venturi port has a product inlet coupled to the air passage. The distribution manifold also has a bypass port which has a top surface, a bottom surface, a front bypass surface, and a rear bypass surface. The bypass port has a product throughway connecting the front bypass surface and the rear bypass surface. A wall of the bypass port defines a passage from the top surface to the bottom surface for insulating the passage from fluid communication with the product throughway.

US Patent:

59965150, Dec 7, 1999

Filed:

May 25, 1999

Appl. No.:

9/318442

Inventors:

David Walter Gregor - Davenport IA
David Allen Ernst - Geneseo IL

Assignee:

Deere & Company - Moline IL

International Classification:

A01C 720

US Classification:

111174

Abstract:

A meter roller is provided with a blank section for enabling an air seeder to achieve a substantially uniform seed rate throughout the width of the tillage. The fluted meter roller has a series of ridges spaced around its periphery, between which are located product receiving valleys. The blank section conforms to the fluted cross-section of the meter roller by projecting into the product receiving valleys of the meter roller. When a series of meter rollers is driven by a common shaft, the output of an individual meter roller may be modified by adjusting the number or size of blank sections attached to the meter roller.

US Patent:

59243708, Jul 20, 1999

Filed:

Aug 18, 1997

Appl. No.:

8/914289

Inventors:

David Walter Gregor - Davenport IA
David Allen Ernst - Geneseo IL

Assignee:

Deere & Company - Moline IL

International Classification:

A01C 720

US Classification:

111174

Abstract:

A meter roller is provided with a blank section for enabling an air seeder to achieve a substantially uniform seed rate throughout the width of the tillage. The fluted meter roller has a series of ridges spaced around its periphery, between which are located product receiving valleys. The blank section conforms to the fluted cross-section of the meter roller by projecting into the product receiving valleys of the meter roller. When a series of meter rollers is driven by a common shaft, the output of an individual meter roller may be modified by adjusting the number or size of blank sections attached to the meter roller.