Patents by Inventor Anders Cederlund

Anders Cederlund 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).

  • Precipitation hardening tool steel for moulding tools and moulding tool made from the steel
    Patent number: 5023049
    Abstract: The invention relates to a precipitation hardening tool steel for mould tools. The steel contains, expressed in weight-%:0.01-0.1 Cfrom traces to max 2 Si0.3-3.0 Mn1-5 Cr0.1-1 Moand Ni as a toughness and hardenability improving element, and Ni and Al as a compound and/or Cu for precipitation hardening purposes, wherein the contents of Ni and Al and/or Cu amount to1-7 Ni1.0-3.0 Al and/or1.0-4.0 Cu,wherein 1.5.times.Al+Cu.gtoreq.2.0, balance essentially only iron, impurities and accessory elements in normal amounts. The invention also relates to a mould tool made from the steel according to the invention.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: June 11, 1991
    Assignee: Uddeholm Tooling Aktiebolag
    Inventors: Larsake Norstrom, Anders Cederlund, Henrik Jespersson