US 12,232,447 B2
Stalk roll with progressively increasing engagement gap
Marion Calmer, Alpha, IL (US)
Assigned to CALMER HOLDING COMPANY, LLC, Lynn Center, IL (US)
Filed by CALMER HOLDING COMPANY, LLC, Lynn Center, IL (US)
Filed on May 16, 2024, as Appl. No. 18/666,209.
Application 18/666,209 is a continuation of application No. 17/305,584, filed on Jul. 9, 2021, granted, now 12,029,164.
Application 17/305,584 is a continuation in part of application No. 15/699,820, filed on Sep. 8, 2017, granted, now 11,071,252, issued on Jul. 27, 2021.
Application 15/699,820 is a continuation in part of application No. 15/225,171, filed on Aug. 1, 2016, granted, now 10,039,232, issued on Aug. 7, 2018.
Application 15/225,171 is a continuation in part of application No. 14/206,710, filed on Mar. 12, 2014, granted, now 9,668,414.
Application 14/206,710 is a continuation in part of application No. 13/327,398, filed on Dec. 15, 2011, granted, now 9,560,804, issued on Feb. 7, 2017.
Claims priority of provisional application 62/385,173, filed on Sep. 8, 2016.
Claims priority of provisional application 62/281,096, filed on Jan. 20, 2016.
Claims priority of provisional application 61/778,118, filed on Mar. 12, 2013.
Prior Publication US 2024/0334873 A1, Oct. 10, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A01D 45/02 (2006.01)
CPC A01D 45/025 (2013.01) 19 Claims
OG exemplary drawing
 
1. A method of utilizing a pair of opposed, counter-rotating stalk rolls that are mounted to a corn head row unit, said method comprising:
guiding stalks into an ear separation chamber using a nose cone having helical flighting; and
utilizing a recess with a depth that is not constant along its length and formed on a front portion of a main cylinder near a plurality of consecutively arranged reduced flutes to produce a stalk engagement gap at least once during a full revolution of the opposed, counter-rotating stalk rolls;
wherein said recess is a section of an exterior surface of a cylinder having a diameter less than a diameter of said main cylinder.