DOUGLAS CARL PIERSON
Pilots at 28 St, Slayton, MN

License number
Minnesota A2770206
Issued Date
Jun 2015
Expiration Date
Jun 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
2033 28Th St, Slayton, MN 56172

Professional information

Douglas Pierson Photo 1

Methods And Apparatus For Guiding Harvest Residue

US Patent:
2008027, Nov 13, 2008
Filed:
May 11, 2007
Appl. No.:
11/747529
Inventors:
Douglas Pierson - Slayton MN, US
International Classification:
A01B 39/22, A01D 45/00
US Classification:
56 101, 172297, 56 51
Abstract:
Methods and devices for guiding harvest residue at the time of harvest to prepare crops for strip-tilling operations. Embodiments of the invention include an attachment for a harvesting machine, and a method of harvesting a row crop in a way that directs harvest residue into relatively narrow strips, leaving strips of soil between the strips of harvest residue in better condition for strip-tilling. The management and placement of harvest residue during harvesting operations according to embodiments of the invention may improve the overall efficiency and effectiveness of strip-tilling operations.


Douglas Pierson Photo 2

Applying Liquid Biodegrading Agents To Guided Harvest Residue

US Patent:
2010020, Aug 19, 2010
Filed:
May 4, 2010
Appl. No.:
12/773090
Inventors:
Douglas C. Pierson - Slayton MN, US
International Classification:
A01D 57/01, A01D 45/00
US Classification:
56 143, 56119, 239172
Abstract:
Apparatus and methods for harvesting a plurality of crop rows guide harvest residue and apply a liquid biodegrading agent thereto, while harvesting the crops.


Douglas Pierson Photo 3

Methods And Apparatus For Guiding Harvest Residue

US Patent:
7814737, Oct 19, 2010
Filed:
Dec 30, 2009
Appl. No.:
12/649503
Inventors:
Douglas C. Pierson - Slayton MN, US
International Classification:
A01D 45/02
US Classification:
56119
Abstract:
Methods and systems for harvesting crop rows employ a plurality of pairs of residue guides to guide harvest residue into rows that are left behind the harvesting machine in the place of the harvested crop rows.