US 12,225,851 B2
Stalk roll with wide 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. 18/666,288.
Application 18/666,288 is a continuation of application No. 16/946,156, filed on Jun. 8, 2020, granted, now 12,010,949.
Application 16/946,156 is a continuation of application No. 15/400,551, filed on Jan. 6, 2017, granted, now 10,674,665, issued on Jun. 9, 2020.
Application 15/400,551 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 61/423,192, filed on Dec. 15, 2010.
Prior Publication US 2024/0298574 A1, Sep. 12, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A01D 45/02 (2006.01)
CPC A01D 45/025 (2013.01) [A01D 45/021 (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 formed on a front portion of a main cylinder near a plurality of consecutively arranged reduced flutes to produce a wide 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.