IP Library Granted Patent US 11,882,791
Granted Patent B2
US 11,882,791 · App. 17/305,560 · Granted Jan 30, 2024

Narrow row head unit

Inventor: Marion Calmer (Lynn Center, IL)
Assignee: CALMER HOLDING COMPANY, LLC
A01D45/021A01D45/023A01D45/025
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Quick Facts
Patent No.
US 11,882,791
App. No.
17/305,560
Granted
Jan 30, 2024
Kind
B2
Abstract

A narrow row head unit includes a back plate secured to a left gearbox and a right gearbox, which gearboxes may be positioned adjacent one another. Each gearbox may provide rotational power to a pair of stalk rolls and a drive sprocket for a gathering chain. A right mounting tab may be secured to the back plate and the right gearbox, and a left mounting tab may be secured to the back plate and left gearbox. A right plate and leg may extend outward from the back plate adjacent the right mounting tab and a left plate and leg may extend outward from the back plate adjacent the left mounting tab. A narrow row head unit positioned left-of-center on a header may have the gathering chain positioned substantially over the right plate, and right-of-center substantially over the left plate.

Claims (12)

1. A narrow row head unit comprising:

a. a gearbox associated with a first side of said first narrow row head unit, wherein said gearbox is configured to receive kinetic energy from a harvester;

b. a pair of stalk rolls engaged with said gearbox, wherein said gearbox is configured to transfer a first portion of said kinetic energy to said pair of stalk rolls;

c. a frame secured to said first gearbox and extending outward therefrom;

d. a drive sprocket positioned above said gearbox, wherein said gearbox is configured to transfer a second portion of said kinetic energy to said drive sprocket;

e. an idler sprocket positioned above said frame, wherein said idler sprocket is engaged with said frame;

f. a gathering chain intermeshed with said drive sprocket and said idler sprocket;

g. an enlarged paddle engaged with said gathering chain, wherein the configuration of an outer perimeter of the paddle is oval in shape, wherein an outer surface of the paddle engaging and pushing ears of corn toward the harvester during operation is concave;

h. an ear guide engaged with a top surface of said frame, wherein said ear guide is formed with an ear guide channel on an interior portion thereof facing said gathering chain, and wherein said ear guide channel is sized and shaped to allow said paddle to travel along a length of said ear guide channel; and

i. an actuated stripper plate formed with a recess therein and a finger slot therein, wherein a position of the actuated stripper plate in a vertical dimension with respect to the pair of stalk rolls is be determined by (1) the ear guide and (2) an engagement of the gathering chain and the actuated stripper plate.

2. The narrow row head unit according to claim 1 further comprising a plurality of enlarged rectangular paddles.

3. The narrow row head unit according to claim 1 further comprising an enlarged rectangular paddle having an increased angle relative to the gathering chain.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2024
From: CALMER, MARION
To: CALMER HOLDING COMPANY, LLC
Reel/Frame 066471/0867 →
Continuity (6)
Continuation 16566498 · Sep 10, 2019
Continuation 15986532 · May 22, 2018
Continuation 14486595 · Sep 15, 2014
Continuation 14094387 · Dec 2, 2013
Provisional Application 61732246 · Nov 30, 2012
Related Publication 20210329839A1 · Oct 28, 2021