Patents Assigned to Nicholson Manufacturing Ltd.
  • Patent number: 9073233
    Abstract: Apparatuses, systems, and methods for debarking logs are shown and described. The disclosed embodiments can be easily adjusted to process different logs. Air-cell rings provide for a wide range of force gradients to process both large and small diameter logs. The rings include force gradient adjustment mechanisms configurable to provide different force gradients to process logs.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: July 7, 2015
    Assignee: Nicholson Manufacturing Ltd.
    Inventor: Marek Cholewczynski
  • Publication number: 20120305137
    Abstract: Apparatuses, systems, and methods for debarking logs are shown and described. The disclosed embodiments can be easily adjusted to process different logs. Air-cell rings provide for a wide range of force gradients to process both large and small diameter logs. The rings include force gradient adjustment mechanisms configurable to provide different force gradients to process logs.
    Type: Application
    Filed: May 31, 2011
    Publication date: December 6, 2012
    Applicant: Nicholson Manufacturing Ltd.
    Inventor: Marek Cholewczynski
  • Patent number: 8256476
    Abstract: Apparatuses, systems, and methods for debarking logs are shown and described. The disclosed embodiments can be used for quickly and conveniently replacing contact surfaces, such as leading edges, of-swing arm assemblies (110). Some disclosed embodiments include a swing arm assembly having a replaceable insert (121) that defines a leading edge for engaging logs (130) moving along a processing line. The insert can be made of a wear resistant material for a prolonged life. A worn insert (121) can be replaced with another insert to ensure proper functioning of the debarker.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: September 4, 2012
    Assignee: Nicholson Manufacturing Ltd.
    Inventors: Marek Cholewczynski, Jorgen Lefsrud
  • Patent number: 7882869
    Abstract: Apparatuses, systems, and methods for transporting logs through a debarker are shown and described. The disclosed embodiments of roller assemblies can be used for quickly and conveniently moving logs along a processing line. Some disclosed embodiments include fluted rollers that carry replaceable inserts. The inserts can protect the logs and the rigid flutes of the roller. The insert can be made of a wear resistant material for a prolonged life. A worn insert can be replaced with another insert to ensure proper functioning of the roller assemblies.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: February 8, 2011
    Assignee: Nicholson Manufacturing Ltd.
    Inventors: Burk R. Kube, Douglas B. Jeffrey, Marek S. Cholewczynski
  • Patent number: 7743805
    Abstract: Apparatuses, systems, and methods for debarking logs are shown and described. The disclosed embodiments can be used for quickly and conveniently replacing contact surfaces of swing arm assemblies. Some disclosed embodiments include a swing arm assembly having a debarker tip assembly with a plurality of replaceable cutting elements for engaging logs moving along a processing line. Side-by-side cutting elements can be made of a wear resistant material for a prolonged life. A worn cutting element can be replaced with another cutting element to ensure proper functioning of the debarker apparatus.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: June 29, 2010
    Assignee: Nicholson Manufacturing Ltd.
    Inventor: Jorgen Lefsrud
  • Patent number: 7350548
    Abstract: Apparatuses, systems, and methods for debarking logs are shown and described. The disclosed embodiments can be used for quickly and conveniently replacing contact surfaces, such as leading edges, of swing arm assemblies. Some disclosed embodiments include a swing arm assembly having a replaceable insert that defines a leading edge for engaging logs moving along a processing line. The insert can be made of a wear resistant material for a prolonged life. A worn insert can be replaced with another insert to ensure proper functioning of the debarker.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: April 1, 2008
    Assignee: Nicholson Manufacturing Ltd.
    Inventors: Marek Cholewczynski, Jorgen Lefsrud
  • Patent number: D739449
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: September 22, 2015
    Assignee: Nicholson Manufacturing Ltd.
    Inventor: Jorgen Lefsrud
  • Patent number: D750941
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: March 8, 2016
    Assignee: Nicholson Manufacturing Ltd.
    Inventor: Nick Thiemer