Patents by Inventor Hans-Toni Steffens

Hans-Toni Steffens 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: 10421115
    Abstract: The invention discloses a hard-rolling roller head with two separate housings for deep rolling the outside radii of adjoining crankpins of a split-pin crankshaft. The hard-rolling roller head provides an effective support of the two housings against one another, when machining split-pin crankshafts, and simultaneously prevents the upper areas of these housings from drifting apart.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: September 24, 2019
    Assignee: HEGENSCHEIDT-MFD GmbH
    Inventors: Hans Toni Steffens, Hans Zimmermann
  • Patent number: 9987722
    Abstract: The invention relates to a hard-rolling roller for a deep rolling tool having a torus-shaped base body for deep rolling of radiuses or recesses which limit the bearing trunnion on crankshafts on both sides, and two at least approximately truncated cone-shaped central bodies, rising on both sides of the body. A cylindrical body rises on the upper end surface of one of the two central bodies.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: June 5, 2018
    Assignee: Hegenscheidt-MFD GmbH & Co. KG
    Inventors: Hans-Toni Steffens, Hans Zimmermann
  • Publication number: 20170252796
    Abstract: The invention discloses a hard-rolling roller head with two separate housings for deep rolling the outside radii of adjoining crankpins of a split-pin crankshaft. The hard-rolling roller head provides an effective support of the two housings against one another, when machining split-pin crankshafts, and simultaneously prevents the upper areas of these housings from drifting apart.
    Type: Application
    Filed: March 1, 2017
    Publication date: September 7, 2017
    Inventors: Hans Toni Steffens, Hans Zimmermann
  • Publication number: 20140326032
    Abstract: The invention relates to a hard-rolling roller for a deep rolling tool having a torus-shaped base body for deep rolling of radiuses or recesses which limit the bearing trunnion on crankshafts on both sides, and two at least approximately truncated cone-shaped central bodies, rising on both sides of the body. A cylindrical body rises on the upper end surface of one of the two central bodies.
    Type: Application
    Filed: July 20, 2012
    Publication date: November 6, 2014
    Applicant: HEGENSCHEIDT-MFD GMBH & CO. KG
    Inventors: Hans-Toni Steffens, Hans Zimmermann
  • Patent number: 7487657
    Abstract: The invention concerns a deep rolling head (2) of a deep rolling tool of a shears-type deep rolling unit of a deep rolling machine used for the deep rolling of radii or fillets (5, 6) on the bearing pins (9) of crankshafts (7) with the aid of deep rollers (4) that are rotatably supported in the deep rolling head (2) with appropriate clearance, whereby the deep rolling head (2) is mounted at the outer end of one of the two shears arms (1) of the deep rolling unit. The deep rolling head (2) is pivotably attached to the end (1) of the shears arm.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: February 10, 2009
    Assignee: Hegenscheidt-MFD GmbH & Co. KG
    Inventor: Hans-Toni Steffens
  • Publication number: 20080173055
    Abstract: The invention concerns a deep rolling head (2) of a deep rolling tool of a shears-type deep rolling unit of a deep rolling machine used for the deep rolling of radii or fillets (5, 6) on the bearing pins (9) of crankshafts (7) with the aid of deep rollers (4) that are rotatably supported in the deep rolling head (2) with appropriate clearance, whereby the deep rolling head (2) is mounted and the outer end of one of the two shears arms (1) of the deep rolling unit. The deep rolling head (2) is pivotably attached to the end (1) of the shears arm.
    Type: Application
    Filed: January 19, 2007
    Publication date: July 24, 2008
    Inventor: Hans-Toni Steffens
  • Patent number: 7257974
    Abstract: The invention relates to a deep-rolling roller head (1) of a deep-rolling tool for deep-rolling, by means of deep-rolling-rollers (2), radii or recesses (3) on the main (4) and lifting bearing journal of a crankshaft, while the crankshaft rotates in a rotational direction (5). The deep-rolling roller head (1) has a prismatic, flat, approximately rectangular housing (6) on whose one front side (7), which faces the bearing journals (4) to be deep-rolled of the crankshaft, two roller cages (8, 9) are provided. The roller cages (8, 9) each have first front sides (10, 11), which are at a mutual distance (12) from each other and at the same time at a distance (13, 14) from the longitudinal center (15) of the housing (6). The roller cages (8, 9) have recesses (16), in which deep-rolling rollers of (2) are loosely rotatably guided in a removable manner with play.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: August 21, 2007
    Assignee: Hegenscheidt-MFD GmbH & Co. KG
    Inventor: Hans-Toni Steffens
  • Publication number: 20070084262
    Abstract: The invention relates to a deep-rolling roller head (1) of a deep-rolling tool for deep-rolling, by means of deep-rolling-rollers (2), radii or recesses (3) on the main (4) and lifting bearing journal of a crankshaft, while the crankshaft rotates in a rotational direction (5). The deep-rolling roller head (1) has a prismatic, flat, approximately rectangular housing (6) on whose one front side (7), which faces the bearing journals (4) to be deep-rolled of the crankshaft, two roller cages (8, 9) are provided. The roller cages (8, 9) each have first front sides (10, 11), which are at a mutual distance (12) from each other and at the same time at a distance (13, 14) from the longitudinal center (15) of the housing (6). The roller cages (8, 9) have recesses (16), in which deep-rolling rollers of (2) are loosely rotatably guided in a removable manner with play.
    Type: Application
    Filed: November 4, 2005
    Publication date: April 19, 2007
    Inventor: Hans-Toni Steffens
  • Patent number: 6691543
    Abstract: The fixed roll apparatus (8) of a fixed roll machine (1) for crankshafts (3) is constructed scissors-fashion. Two pivotable scissor arms (9 and 10) disposed opposite one another each bear a fixed roll head (13) and a support roll head (14) respectively. The support roll head (14) has two axis-parallel support rolls whose axes of rotation lie in a common plane. The support roll head (14) also has an axial guide roll which is disposed in front of the support rolls in the pivoting direction (35) for closure and whose axis of rotation is perpendicular to the axis of rotation of the crankshaft (3) and lies in a plane which forms an acute angle with the common plane of the axis of rotation of the support rolls, its diameter being larger than the width of the support roll head (14) and slightly smaller than the spacing of the adjacent oil collars of a main bearing pin or a connecting rod bearing pin.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: February 17, 2004
    Assignee: Hegenscheidt-MFD GmbH & Co. KG
    Inventors: Hans-Toni Steffens, Hans Zimmermann
  • Publication number: 20020178775
    Abstract: The fixed roll apparatus (8) of a fixed roll machine (1) for crankshafts (3) is constructed scissors-fashion. Two pivotable scissor arms (9 and 10) disposed opposite one another each bear a fixed roll head (13) and a support roll head (14) respectively. The support roll head (14) has two axis-parallel support rolls whose axes of rotation lie in a common plane. The support roll head (14) also has an axial guide roll which is disposed in front of the support rolls in the pivoting direction (35) for closure and whose axis of rotation is perpendicular to the axis of rotation of the crankshaft (3) and lies in a plane which forms an acute angle with the common plane of the axis of rotation of the support rolls, its diameter being larger than the width of the support roll head (14) and slightly smaller than the spacing of the adjacent oil collars of a main bearing pin or a connecting rod bearing pin.
    Type: Application
    Filed: March 14, 2002
    Publication date: December 5, 2002
    Inventors: Hans-Toni Steffens, Hans Zimmermann
  • Patent number: 6393887
    Abstract: The fixed roll apparatus (8) of a fixed roll machine (1) for crankshafts (3) is constructed scissors-fashion. Two pivotable scissor arms (9 and 10) disposed opposite one another each bear a fixed roll head (13) and a support roll head (14) respectively. The support roll head (14) has two axis-parallel support rolls whose axes of rotation lie in a common plane. The support roll head (14) also has an axial guide roll which is disposed in front of the support rolls in the pivoting direction (35) for closure and whose axis of rotation is perpendicular to the axis of rotation of the crankshaft (3) and lies in a plane which forms an acute angle with the common plane of the axis of rotation of the support rolls, its diameter being larger than the width of the support roll head (14) and slightly smaller than the spacing of the adjacent oil collars of a main bearing pin or a connecting rod bearing pin.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: May 28, 2002
    Assignee: Hegenscheidt-MFD GmbH & Co., KG
    Inventors: Hans-Toni Steffens, Hans Zimmermann