Patents by Inventor Chris Millward

Chris Millward 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).

  • Long life cermet coated creping blade
    Patent number: 10125455
    Abstract: A blade for creping a paper web from a Yankee cylinder surface is made of a steel substrate having a thickness of 0.7 mm-2 mm. The steel substrate is covered by a cermet coating that forms a working edge adapted for contact with the surface and a web impact area upon which the web impacts during creping. The cermet coating includes chromium carbides and tungsten carbides in a nickel based metal matrix. The cermet coating has a porosity of <2 volume % and a hardness of >1100 HV0.3.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: November 13, 2018
    Assignee: VOESTALPINE PRECISION STRIP AB
    Inventors: Chris Millward, Tuuli Kamppila
  • Creping blade and method for its manufacturing
    Patent number: 9896802
    Abstract: The invention relates to a creping blade for the detachment of a travelling paper web from a dryer cylinder, said blade having a working edge to be placed against the cylinder, wherein the creping blade has a tensile strength of 1800-2500 N/mm2 and a hardness of 57-66 HRC in the hardened and tempered condition and wherein the blade is made from a steel, which comprises the following main components (in wt. %): C: 1.2-1.5; Si: 0.1-0.8; Mn: 0.1-0.7; Cr: 4.2-5.2; Mo: 3.0-4.0; V: 3.2-4.2; N: 0.01-0.15; balance Fe and impurities.
    Type: Grant
    Filed: January 17, 2015
    Date of Patent: February 20, 2018
    Assignee: VOESTALPINE PRECISION STRIP AB
    Inventor: Chris Millward
  • Stainless steel strip for flapper valves
    Patent number: 9890436
    Abstract: A cold rolled and hardened martensitic austenitic stainless steel strip for flapper valves in compressors is made from steel combining, in weight %(wt. %), the following elements: C: 0.3-0.5, Si: 0.2-0.8, Mn: 0.2-1.0, Cr: 12.0-15.0, Mo: 0.50-2.00, N: 0.02-0.15, and V: 0.01-0.20. The steel strip has a matrix consisting of tempered martensite and between 5 and 15 volume % austenite and a tensile strength (Rm) of 1970-2300 MPa. The steel strip has a thickness of 0.07-3 mm and a width of ?500 mm.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 13, 2018
    Assignee: VOESTALPINE PRECISION STRIP AB
    Inventors: Chris Millward, Azhar Nawaz, Alexander Lof
  • LONG LIFE CERMET COATED CREPING BLADE
    Publication number: 20170342660
    Abstract: A blade for creping a paper web from a Yankee cylinder surface is made of a steel substrate having a thickness of 0.7 mm-2 mm. The steel substrate is covered by a cermet coating that forms a working edge adapted for contact with the surface and a web impact area upon which the web impacts during creping. The cermet coating includes chromium carbides and tungsten carbides in a nickel based metal matrix. The cermet coating has a porosity of <2 volume % and a hardness of >1100 HV0.3.
    Type: Application
    Filed: December 10, 2015
    Publication date: November 30, 2017
    Inventors: Chris MILLWARD, Tuuli KAMPPILA
  • STAINLESS STEEL STRIP FOR FLAPPER VALVES
    Publication number: 20170335419
    Abstract: The invention relates to a cold roiled and hardened martensitic/austenitic stainless steel strip for flapper valves in the compressors, wherein the steel strip is made from steel combining, in weight % (wt. %), the following elements: C 0.3-0.5, Si 0.2-0.8, Mn 0.2-1.0, Cr 12.0-15.0, Mo 0.50-2.00, N 0.02-0.15, and V 0.01-0.20. The steel has a matrix consisting of tempered martensite and between 5 and 15 volume % austenite and a tensile strength (Rm) of 1970-2300 MPa.
    Type: Application
    Filed: December 8, 2015
    Publication date: November 23, 2017
    Inventors: Chris MILLWARD, Azhar NAWAZ, Alexander LOF
  • CREPING BLADE AND METHOD FOR ITS MANUFACTURING
    Publication number: 20160333523
    Abstract: The invention relates to a creping blade for the detachment of a travelling paper web from a dryer cylinder, said blade having a working edge to be placed against the cylinder, wherein the creping blade has a tensile strength of 1800-2500 N/mm2 and a hardness of 57-66 HRC in the hardened and tempered condition and wherein the blade is made from a steel, which comprises the following main components (in wt. %): C: 1.2-1.5; Si: 0.1-0.8; Mn: 0.1-0.7; Cr: 4.2-5.2; Mo: 3.0-4.0; V: 3.2-4.2; N: 0.01-0.15; balance Fe and impurities.
    Type: Application
    Filed: January 17, 2015
    Publication date: November 17, 2016
    Inventor: Chris MILLWARD
  • Martensitic stainless steel and method of the manufacture
    Patent number: 7758707
    Abstract: The invention relates to a martensitic stainless steel to be used for making a razor, surgical and similar blades or other cutting tools, which steel contains 0.40 to 0.55 wt % carbon, 0.8 to 1.5 wt % silicon, 0.7 to 0.85 wt % manganese, 13.0 to 14.0 wt % chromium, 1.0 to 1.5 wt % molybdenum and 0.2 to 0.4 wt % nickel, 0.02 to 0.04 wt % nitrogen, the balance of the steel being iron and inevitable impurities. The invention also relates to a method of manufacturing the said steel.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: July 20, 2010
    Assignee: Outokumpu Oyj
    Inventor: Chris Millward
  • Martensitic stainless steel and method of the manufacture
    Publication number: 20070000580
    Abstract: The invention relates to a martensitic stainless steel to be used for making a razor, surgical and similar blades or other cutting tools, which steel contains 0.40 to 0.55 wt % carbon, 0.8 to 1.5 wt % silicon, 0.7 to 0.85 wt % manganese, 13.0 to 14.0 wt % chromium, 1.0 to 1.5 wt % molybdenum and 0.2 to 0.4 wt % nickel, 0.02 to 0.04 wt % nitrogen, the balance of the steel being iron and inevitable impurities. The invention also relates to a method of manufacturing the said steel.
    Type: Application
    Filed: June 16, 2006
    Publication date: January 4, 2007
    Inventor: Chris Millward