Patents by Inventor Larry Buchtmann

Larry Buchtmann 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).

  • Cutting instrument, coating and method
    Patent number: 10766153
    Abstract: A new and improved cutting instrument is provided having an enhanced coating. The coating includes titanium, chromium, nitrogen and carbon elements and provides increased wear resistance. The coating can be applied to a variety of metal and non-metallic substrates, which include scissors and knife blades.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: September 8, 2020
    Assignee: Acme United Corporation
    Inventors: Larry Buchtmann, Gary Pia
  • CUTTING INSTRUMENT, COATING AND METHOD
    Publication number: 20180133909
    Abstract: A new and improved cutting instrument is provided having an enhanced coating. The coating includes titanium, chromium, nitrogen and carbon elements and provides increased wear resistance. The coating can be applied to a variety of metal and non-metallic substrates, which include scissors and knife blades.
    Type: Application
    Filed: November 27, 2017
    Publication date: May 17, 2018
    Applicant: Acme United Corporation
    Inventors: Larry Buchtmann, Gary Pia
  • Coating for cutting implements
    Patent number: 9719173
    Abstract: Coated cutting implements having increased longevity, corrosion and stain resistance, a smooth and uniform appearance and color, and/or reduced friction between cutting blades are provided. The coatings on the cutting implements have at least two layers. The first layer is a metal-based layer that imparts hardness or wear-resistance to the cutting implement. The second layer is comprised of an organic polymer.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: August 1, 2017
    Assignee: Acme United Corporation
    Inventors: Michael E. Peterson, Larry Buchtmann
  • Cutting Instrument and Coating
    Publication number: 20120222315
    Abstract: A new and improved cutting instrument is provided having an enhanced coating. The coating includes titanium, chromium, nitrogen and carbon elements and provides increased wear resistance. The coating can be applied to a variety of metal and non-metallic substrates, which include scissors and knife blades.
    Type: Application
    Filed: February 22, 2012
    Publication date: September 6, 2012
    Inventors: Larry Buchtmann, Gary Pia
  • Coating for cutting implements
    Patent number: 8245407
    Abstract: A cutting implement having a pair of cutting blades and a coating is provided. The coating has titanium chromium nitride and provides the cutting blades with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25 10?6 inch/inch, and a hardness in a range of about 5.7 to about 9.1 gigapascals.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: August 21, 2012
    Assignee: Acme United Corporation
    Inventors: Larry Buchtmann, Gary Pia
  • Pencil-sharpening device
    Patent number: 7934319
    Abstract: The present invention is directed to a pencil-sharpening device having a titanium chromium nitride coating disposed on the cutting blade of the device. The titanium chromium nitride coating is metallurgically bonded to the steel blade. The coated blade provides enhanced properties for the pencil-sharpening device.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: May 3, 2011
    Assignee: Acme United Corporation
    Inventors: Michael E. Peterson, Larry Buchtmann, Walter Johnsen, Stuart D. Farnworth
  • Coating for cutting implements
    Patent number: 7913402
    Abstract: A cutting implement having a cutting blade and a coating is provided. The coating has titanium chromium nitride and provides the blade with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25×10?6 inch/inch, and a hardness in a range of about 5.7 to 9.1 gigapascals.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: March 29, 2011
    Assignee: Acme United Corporation
    Inventors: Larry Buchtmann, Gary Pia
  • Cutting Instrument
    Publication number: 20080178477
    Abstract: A new and improved cutting instrument is provided having an enhanced coating. The coating includes titanium, chromium, nitrogen and carbon elements and provides increased wear resistance. The coating can be applied to a variety of metal and non-metallic substrates, which include scissors and knife blades.
    Type: Application
    Filed: December 19, 2007
    Publication date: July 31, 2008
    Applicant: ACME UNITED CORPORATION
    Inventor: Larry Buchtmann
  • Coating for cutting implements
    Publication number: 20080016703
    Abstract: A cutting implement having a pair of cutting blades and a coating is provided. The coating has titanium chromium nitride and provides the cutting blades with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25 10?6 inch/inch, and a hardness in a range of about 5.7 to about 9.1 gegapascals.
    Type: Application
    Filed: January 23, 2006
    Publication date: January 24, 2008
    Inventors: Larry Buchtmann, Gary Pia
  • PENCIL-SHARPENING DEVICE
    Publication number: 20070214661
    Abstract: The present invention is directed to a pencil-sharpening device having a titanium chromium nitride coating disposed on the cutting blade of the device. The titanium chromium nitride coating is metallurgically bonded to the steel blade. The coated blade provides enhanced properties for the pencil-sharpening device.
    Type: Application
    Filed: November 8, 2006
    Publication date: September 20, 2007
    Inventors: Michael Peterson, Larry Buchtmann, Walter Johnsen, Stuart Farnworth
  • Coating for cutting implements
    Publication number: 20070186421
    Abstract: A cutting implement having a cutting blade and a coating is provided. The coating has titanium chromium nitride and provides the blade with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25×10?6 inch/inch, and a hardness in a range of about 5.7 to 9.1 gigapascals.
    Type: Application
    Filed: September 20, 2005
    Publication date: August 16, 2007
    Inventors: Larry Buchtmann, Gary Pia
  • Coating for cutting implements
    Publication number: 20060201003
    Abstract: A cutting implement having a pair of cutting blades and a coating is provided. The coating has titanium chromium nitride and provides the cutting blades with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25 10?6 inch/inch, and a hardness in a range of about 5.7 to about 9.1 gigapascals.
    Type: Application
    Filed: January 23, 2006
    Publication date: September 14, 2006
    Inventors: Larry Buchtmann, Gary Pia
  • Coating for cutting implements
    Publication number: 20060201002
    Abstract: A cutting implement having a pair of cutting blades and a coating is provided. The coating has titanium chromium nitride and provides the cutting blades with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25 10?6 inch/inch, and a hardness in a range of about 5.7 to about 9.1 gigapascals.
    Type: Application
    Filed: January 23, 2006
    Publication date: September 14, 2006
    Inventors: Larry Buchtmann, Gary Pia
  • Method for coating cutting implements
    Publication number: 20060137971
    Abstract: A method for coating a cutting implement. The coating has titanium chromium nitride and provides the cutting blades with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25×10?6 inch/inch, and a hardness in a range of about 5.7 to about 9.1 gigapascals.
    Type: Application
    Filed: September 20, 2005
    Publication date: June 29, 2006
    Inventors: Larry Buchtmann, Gary Pia
  • Scissors with handle opening overmold and ribbing
    Publication number: 20060123634
    Abstract: The present invention is a new and improved scissors having handle portions which include an overmolding and ribbing. The ribbing is positioned to increase the ease and comfort of use while also providing a cost effective and pleasing appearance.
    Type: Application
    Filed: September 20, 2005
    Publication date: June 15, 2006
    Inventors: Michael Peterson, Larry Buchtmann, Daniel Brady, Stuart Farnworth
  • Coating for cutting implements
    Patent number: 6988318
    Abstract: A cutting implement having a pair of cutting blades and a coating is provided. The coating has titanium chromium nitride and provides the cutting blades with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25 10?6 inch/inch, and a hardness in a range of about 5.7 to about 9.1 gegapascals.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: January 24, 2006
    Assignee: Acme United Corporation
    Inventors: Larry Buchtmann, Gary Pia
  • Coating for stationery cutting implements
    Publication number: 20040168324
    Abstract: A cutting implement having a pair of cutting blades and a coating is provided. The coating has titanium chromium nitride and provides the cutting blades with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25 10−6 inch/inch, and a hardness in a range of about 5.7 to about 9.1 gegapascals.
    Type: Application
    Filed: November 24, 2003
    Publication date: September 2, 2004
    Applicant: ACME UNITED CORPORATION
    Inventors: Larry Buchtmann, Gary Pia
  • Combined handle for a letter opener or a staple remover
    Patent number: D526879
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: August 22, 2006
    Assignee: Acme United Corporation
    Inventors: Christopher Chudek, Michael E. Peterson, Larry Buchtmann