Patents by Inventor David Offerdahl

David Offerdahl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240081183
    Abstract: A leaf harvester includes a mobile vehicle, configured for moving on ground, having a leaf cutter at a front thereof, a first conveyor, and a laminar flow air conveyor, disposed between the leaf cutter and the first conveyor. The laminar flow air conveyor has a sloped upper surface, and is configured to rearwardly discharge a laminar flow of air over the upper surface to propel leaves cut by the leaf cutter to the first conveyor.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 14, 2024
    Inventors: David Offerdahl, Jordan Egan
  • Patent number: 10721861
    Abstract: Embodiments for implementing a harvester method, system, and apparatus are provided. For example, a harvester for produce may include a fluid knife system at a front end of the harvester in a travel direction of the harvester, wherein the fluid knife system projects a fluid at a pressure and a direction that cuts produce, a roller bar including one or more fingers extending radially outward and configured to receive produce from the fluid knife system, wherein the roller bar rotates on its axis turning the one or more fingers at the front end lifting the produce cut by the fluid knife system, a plurality of conveyers that receive the produce from the roller bar and are configured to transport the produce through the harvester, and a bin system configured to receive the produce from the plurality of conveyers and package the produce into one or more bins.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: July 28, 2020
    Assignee: Taylor Fresh Foods, Inc.
    Inventors: David Offerdahl, Cayetano Padilla, Mark Borman
  • Publication number: 20180249627
    Abstract: Embodiments for implementing a harvester method, system, and apparatus are provided. For example, a harvester for produce may include a fluid knife system at a front end of the harvester in a travel direction of the harvester, wherein the fluid knife system projects a fluid at a pressure and a direction that cuts produce, a roller bar including one or more fingers extending radially outward and configured to receive produce from the fluid knife system, wherein the roller bar rotates on its axis turning the one or more fingers at the front end lifting the produce cut by the fluid knife system, a plurality of conveyers that receive the produce from the roller bar and are configured to transport the produce through the harvester, and a bin system configured to receive the produce from the plurality of conveyers and package the produce into one or more bins.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 6, 2018
    Inventors: David Offerdahl, Cayetano Padilla, Mark Borman
  • Publication number: 20090077940
    Abstract: A mobile harvesting apparatus and method utilizes a stream of liquid, propelled under hitch pressure through at least one nozzle, to harvest produce. Preferably, a plurality of nozzles is provided. Additionally, it is preferred that, for each nozzle provided, there is an associated diverter plate. With this configuration, a stream of liquid exiting a nozzle will, after harvesting all item of produce, strike its associated diverter plate.
    Type: Application
    Filed: September 20, 2007
    Publication date: March 26, 2009
    Inventors: Frank J. Maconachy, David Offerdahl
  • Patent number: 7308781
    Abstract: A harvester capable of alternate configurations for bulk and tote loading. In a tote loading configuration, harvested produce is moved along a main conveyor, elevated to a raised conveyor area, packed into totes, and the packed totes are then moved onto a lower conveyor for further transport. In a bulk loading configuration, the harvested produce is transported along the main conveyor, to a raised conveyor area, and are then lifted using an elevator for placement into a bulk bin.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: December 18, 2007
    Assignee: Ramsay Highlander, Inc.
    Inventors: Frank J. Maconachy, David Offerdahl, Jose Luis Garcia, Sr.
  • Patent number: 7281364
    Abstract: A mobile harvesting apparatus and method utilizes a stream of liquid, propelled under high pressure through at least one nozzle, to harvest produce. Preferably, a plurality of nozzles is provided. Additionally, it is preferred that, for each nozzle provided, there is an associated diverter plate. With this configuration, a stream of liquid exiting a nozzle will, after harvesting an item of produce, strike its associated diverter plate.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: October 16, 2007
    Inventors: Frank J. Maconachy, David Offerdahl
  • Publication number: 20070113531
    Abstract: A harvester capable of alternate configurations for bulk and tote loading. In a tote loading configuration, harvested produce is moved along a main conveyor, elevated to a raised conveyor area, packed into totes, and the packed totes are then moved onto a lower conveyor for further transport. In a bulk loading configuration, the harvested produce is transported along the main conveyor, to a raised conveyor area, and are then lifted using an elevator for placement into a bulk bin.
    Type: Application
    Filed: November 2, 2005
    Publication date: May 24, 2007
    Inventors: Frank Maconachy, David Offerdahl, Jose Garcia
  • Patent number: 7062899
    Abstract: A mobile harvesting apparatus and method, which permits the automated harvesting of produce, preferably lettuce. The apparatus consists in its most basic form of a vehicle having a bandsaw positioned at a front portion thereof, the blade of which is positioned to slice the lettuce head at the desired location. The apparatus further includes a conveyor, that transports the harvested produce from the cutting site and onto the apparatus. Preferably, the apparatus additionally features a washing conveyor, washing station, inspection station, and elevator conveyor, to assist in the further processing of harvested produce.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: June 20, 2006
    Assignee: Harvesting Innovations
    Inventors: Frank J. Maconachy, David Offerdahl, Chris Garnett
  • Patent number: 6996964
    Abstract: A mobile harvesting method, which permits the automated harvesting of produce, preferably lettuce. The apparatus consists in its most basic form of a vehicle having a bandsaw positioned at a front portion thereof, the blade of which is positioned to slice the lettuce head at the desired location. The apparatus further includes a conveyor that transports the harvested produce from the cutting site and onto the apparatus. Preferably, the apparatus additionally features a washing conveyor, washing station, inspection station, and elevator conveyor, to assist in the further processing of harvested produce.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: February 14, 2006
    Inventors: Frank J. Maconachy, David Offerdahl, Chris Garnett
  • Publication number: 20050204716
    Abstract: A mobile harvesting method, which permits the automated harvesting of produce, preferably lettuce. The apparatus consists in its most basic form of a vehicle having a bandsaw positioned at a front portion thereof, the blade of which is positioned to slice the lettuce head at the desired location. The apparatus further includes a conveyor that transports the harvested produce from the cutting site and onto the apparatus. Preferably, the apparatus additionally features a washing conveyor, washing station, inspection station, and elevator conveyor, to assist in the further processing of harvested produce.
    Type: Application
    Filed: May 16, 2005
    Publication date: September 22, 2005
    Inventors: Frank Maconachy, David Offerdahl, Chris Garnett
  • Publication number: 20050055993
    Abstract: A mobile harvesting apparatus and method utilizes a stream of liquid, propelled under high pressure through at least one nozzle, to harvest produce. Preferably, a plurality of nozzles is provided. Additionally, it is preferred that, for each nozzle provided, there is an associated diverter plate. With this configuration, a stream of liquid exiting a nozzle will, after harvesting an item of produce, strike its associated diverter plate.
    Type: Application
    Filed: August 6, 2004
    Publication date: March 17, 2005
    Inventors: Frank Maconachy, David Offerdahl
  • Publication number: 20030182920
    Abstract: A mobile harvesting apparatus and method, which permits the automated harvesting of produce, preferably lettuce. The apparatus consists in its most basic form of a vehicle having a bandsaw positioned at a front portion thereof, the blade of which is positioned to slice the lettuce head at the desired location. The apparatus further includes a conveyor, that transports the harvested produce from the cutting site and onto the apparatus. Preferably, the apparatus additionally features a washing conveyor, washing station, inspection station, and elevator conveyor, to assist in the further processing of harvested produce.
    Type: Application
    Filed: February 25, 2003
    Publication date: October 2, 2003
    Inventors: Frank J. Maconachy, David Offerdahl, Chris Garnett