Patents by Inventor Per Alm

Per Alm 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).

  • Patent number: 8864861
    Abstract: A cutting tool insert for machining by chip removal includes a body of polycrystalline cubic boron nitride compact (PCBN), either as a solid insert or attached to a backing body, onto which a hard and wear resistant PVD coating is deposited. The coating includes a polycrystalline nanolaminated structure of alternating A and B layers, where layer A is (Ti,Al,Me1)N and Me1 is one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table, layer B is (Ti,Si,Me2)N and Me2 is one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table including Al with a thickness between 0.5 and 10 ?m. The insert is particularly useful in metal cutting applications generating high temperatures, e.g., high speed machining of steels, cast irons, super alloys and hardened steels.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: October 21, 2014
    Assignee: Seco Tools AB
    Inventors: Jon Andersson, Rachid M'Saoubi, Tommy Larsson, Mats Johansson, Per Alm
  • Publication number: 20120114437
    Abstract: A cutting tool insert for machining by chip removal includes a body of polycrystalline cubic boron nitride compact (PCBN), either as a solid insert or attached to a backing body, onto which a hard and wear resistant PVD coating is deposited. The coating includes a polycrystalline nanolaminated structure of alternating A and B layers, where layer A is (Ti,Al,Me1)N and Me1 is one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table, layer B is (Ti,Si,Me2)N and Me2 is one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table including Al with a thickness between 0.5 and 10 ?m. The insert is particularly useful in metal cutting applications generating high temperatures, e.g., high speed machining of steels, cast irons, super alloys and hardened steels.
    Type: Application
    Filed: May 28, 2010
    Publication date: May 10, 2012
    Applicant: SECO TOOLS AB
    Inventors: Jon Andersson, Rachid M'saoubi, Tommy Larsson, Mats Johansson, Per Alm
  • Patent number: 7758287
    Abstract: A negative insert for cutting machining has a top side, a clearance side perpendicular thereto and a cutting edge in a region interconnecting these sides and extending substantially in parallel with these sides. The insert has further a flat or rounded chamfer connecting the cutting edge to the clearance side on at least one lateral side of the insert in the region of a corner thereof. The chamfer makes an angle of 1°-15° with the clearance side for enabling application of the chamfer substantially tangentially to a work piece to be machined for bearing of the insert in two dimensions against the work piece during cutting machining operation carried out by the insert.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: July 20, 2010
    Assignee: Seco Tools AB
    Inventors: Per Alm, Carlos Bueno-Martinez, Patrick Jonsson, Jan-Erik Stahl, Mats Jonsson
  • Patent number: 7438508
    Abstract: A metal cutting insert that is primarily intended for turning operations includes an upper surface, a lower surface substantially parallel with said upper surface, and at least three side surfaces extending between said upper and lower surfaces. A transition between two adjacent side surfaces forms a rounded nose radius surface at a cutting insert corner. The cutting insert includes a peripheral land bridging the upper and side surfaces at least at the corner portion at a chamfer angle. An intersection of the land and the nose radius surface forms a nose cutting edge. The nose cutting edge is defined by at least one radius. The cuffing corner includes at least one curved wiper edge. The chamfer angle in a cross-section at the nose cutting edge is larger than the chamfer angle in a cross-section a distance away from the nose cutting edge.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: October 21, 2008
    Assignee: Seco Tools AB
    Inventors: Per Alm, Anders Wickman
  • Publication number: 20080253848
    Abstract: A negative insert for cutting machining has a top side, a clearance side perpendicular thereto and a cutting edge in a region interconnecting these sides and extending substantially in parallel with these sides. The insert has further a flat or rounded chamfer connecting the cutting edge to the clearance side on at least one lateral side of the insert in the region of a corner thereof. The chamfer makes an angle of 1°-15° with the clearance side for enabling application of the chamfer substantially tangentially to a work piece to be machined for bearing of the insert in two dimensions against the work piece during cutting machining operation carried out by the insert.
    Type: Application
    Filed: October 12, 2007
    Publication date: October 16, 2008
    Applicant: SECO TOOLS AB
    Inventors: Per Alm, Carlos Bueno-Martinez, Patrick Jonsson, Jan-Erik Stahl, Mats Jonsson
  • Publication number: 20060228179
    Abstract: The present invention relates to a metal cutting insert that is primarily intended for turning operations. The cutting insert comprises an upper surface, a lower surface substantially parallel with said upper surface, and at least three side surfaces extending between said upper and lower surfaces. A transition between two adjacent side surfaces forms a rounded nose radius surface at a cutting insert corner. The cutting insert includes a peripheral land bridging the upper and side surfaces at least at the corner portion at a chamfer angle. An intersection of the land and the nose radius surface forms a nose cutting edge. The nose cutting edge is defined by at least one radius. The cutting corner includes at least one curved wiper edge. The chamfer angle in a cross-section at the nose cutting edge is larger than the chamfer angle in a cross-section a distance away from the nose cutting edge.
    Type: Application
    Filed: February 13, 2006
    Publication date: October 12, 2006
    Applicant: SECO TOOLS AB
    Inventors: Per Alm, Anders Wickman
  • Patent number: 5733870
    Abstract: An ointment containing fibronectin for treatment of epithelial lesions in animals comprises between 0.00001% by weight and 0.1% by weight species-specific fibronectin, between 17 and 45% by weight of vaselinum album, between 5 and 15% by weight of cetostearyl alcohol, between 5 and 12 g by weight of polysorbate and at least 30% by weight of water.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: March 31, 1998
    Assignee: ProCell Bioteknik i Hornefors AB
    Inventor: Per Alm, deceased