Patents by Inventor Michael Hellmann

Michael Hellmann 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: 11967844
    Abstract: A charger housing has an operating side, at least one battery charging port, which is accessible from the operating side, and a first fastening region, on the outer side of the housing, on a first fastening side which is different from the operating side. The first fastening region is designed for detachably fastening the charger housing to a fastening support and has one or more first fastening elements. The charger housing also has a second fastening region, on the outer side of the housing, on a second fastening side which is different from the operating side and the first fastening side. The second fastening region is designed for detachably fastening the charger housing to a fastening support and has one or more second fastening elements. Use may be as a housing of a charger for recharging battery packs for electric gardening and forestry working apparatus.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: April 23, 2024
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Michael Fuchs, Charis Hellmann
  • Publication number: 20230081213
    Abstract: A rebar cage assembly system, a modular jig system and method for forming a rebar cage are disclosed. The rebar cage assembly system includes a modular jig for forming a rebar cage. The modular jig includes a fixture base, and a plurality of jig subcomponents. The jig subcomponents each having a jig attachment feature and a rebar retention feature. The rebar retention feature is configured to detachably receive rebar segments. The plurality of jig subcomponents are customizably arrangeable on the fixture base to form a modular jig to cooperatively position rebar segments in the rebar retention features. The rebar cage assembly system further includes a robotic system having a first robot and second robot and a plurality of rebar segments. The first robot is arranged and disposed to independently retrieve and position jig subcomponents and rebar segments. The second robot is arranged and disposed to join rebar segments to form a rebar cage.
    Type: Application
    Filed: October 17, 2019
    Publication date: March 16, 2023
    Inventors: Daniel BLANK, Ian M. COHEN, Tanaya BHAVE, Michael HELLMANN
  • Patent number: 11451022
    Abstract: An explosion-protected device (1) comprises a deformable interior body (20) that comprises at least one line channel (30, 31) extending along a longitudinal axis (L) through the interior body (20) for a line. The line extends through the at least one line channel (30, 31). The interior body (20) is encompassed by a housing (2). The housing (2) is divided into an incoming section (3), an outgoing section (4) as well as a middle section (5) disposed between the incoming section (3) and the outgoing section (4). A spring element (25) is provided which is disposed in the middle section (5) and exerts pressure onto the interior body (20).
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: September 20, 2022
    Assignee: Pepperl + Fuchs SE
    Inventor: Michael Hellmann
  • Publication number: 20210281053
    Abstract: An explosion-protected device (1) comprises a deformable interior body (20) that comprises at least one line channel (30, 31) extending along a longitudinal axis (L) through the interior body (20) for a line. The line extends through the at least one line channel (30, 31). The interior body (20) is encompassed by a housing (2). The housing (2) is divided into an incoming section (3), an outgoing section (4) as well as a middle section (5) disposed between the incoming section (3) and the outgoing section (4). A spring element (25) is provided which is disposed in the middle section (5) and exerts pressure onto the interior body (20).
    Type: Application
    Filed: March 3, 2021
    Publication date: September 9, 2021
    Applicant: Pepperl + Fuchs SE
    Inventor: Michael HELLMANN
  • Patent number: 9290832
    Abstract: The invention relates to a cold-rolled carbon steel comprising (in % by weight) C 0.63-0.85%, max. 0.40% Si, 0.20-0.90% Mn, max. 0.035% P, max. 0.035% S, max. 0.060% Al, max. 0.40% Cr, 0.003-0.010% N, preferably 0.005-0.008%, and a maximum of 0.12% of at least one micro-alloying element, the remainder being iron and steel production-related pollutants. Possible micro-alloying elements are Ti, Nb, V and optionally Zr. A carbon steel of the type is cold-rolled into texture-rolled strip steel with a high cold reduction degree and can be used in particular as a material for coiling springs or other components having spring properties.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: March 22, 2016
    Assignee: C.D. Waelzholz GmbH
    Inventors: Hans-Toni Junius, Heino Buddenberg, Michael Hellmann, Dirk Wilmes
  • Patent number: 8652396
    Abstract: A method continuously creates a bainite structure in a carbon steel, especially a strip steel by austenitizing the carbon steel; introducing the austenitized carbon steel into a bath containing a quenching agent; adjusting the carbon steel to the transformation temperature for bainite and maintaining the transformation temperature for a certain period of time; and then cooling the carbon steel. The carbon steel stays in the bath until a defined percentage of the bainite structure relative to the total structure of the carbon steel has formed. Residues of the quenching agent are removed from the surface of the carbon steel by blowing the same off when the carbon steel is discharged from the bath, and the remaining structure components of the carbon steel are then transformed into bainite in an isothermal tempering station without deflecting the carbon steel at all.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: February 18, 2014
    Assignees: C.D. Wälzholz GmbH, Ebner Industrieofenbau GmbH
    Inventors: Werner Kaiser, Heinz Hoefinghoff, Hans-Toni Junius, Michael Hellmann, Peter Ebner, Heribert Lochner
  • Publication number: 20120114519
    Abstract: The invention relates to a cold-rolled carbon steel comprising (in % by weight) C 0.63-0.85%, max. 0.40% Si, 0.20-0.90% Mn, max. 0.035% P, max. 0.035% S, max. 0.060% Al, max. 0.40% Cr, 0.003-0.010% N, preferably 0.005-0.008%, and a maximum of 0.12% of at least one micro-alloying element, the remainder being iron and steel production-related pollutants. Possible micro-alloying elements are Ti, Nb, V and optionally Zr. A carbon steel of the type is cold-rolled into texture-rolled strip steel with a high cold reduction degree and can be used in particular as a material for coiling springs or other components having spring properties.
    Type: Application
    Filed: February 25, 2010
    Publication date: May 10, 2012
    Applicant: C.D. Waelzholz GmbH
    Inventors: Hans-Toni Junius, Heino Buddenberg, Michael Hellmann, Dirk Wilmes
  • Publication number: 20110198786
    Abstract: A method continuously creates a bainite structure in a carbon steel, especially a strip steel by austenitizing the carbon steel; introducing the austenitized carbon steel into a bath containing a quenching agent; adjusting the carbon steel to the transformation temperature for bainite and maintaining the transformation temperature for a certain period of time; and then cooling the carbon steel. The carbon steel stays in the bath until a defined percentage of the bainite structure relative to the total structure of the carbon steel has formed. Residues of the quenching agent are removed from the surface of the carbon steel by blowing the same off when the carbon steel is discharged from the bath, and the remaining structure components of the carbon steel are then transformed into bainite in an isothermal tempering station without deflecting the carbon steel at all.
    Type: Application
    Filed: April 18, 2011
    Publication date: August 18, 2011
    Applicants: C.D. WAELZHOLZ GMBH, EBNER INDUSTRIEOFENBAU GMBH
    Inventors: Werner Kaiser, Heinz Höfinghoff, Hans-Toni Junius, Michael Hellmann, Peter Ebner, Heribert Lochner
  • Patent number: 7972452
    Abstract: A method continuously creates a bainite structure in a carbon steel, especially a strip steel by austenitizing the carbon steel; introducing the austenitized carbon steel into a bath containing a quenching agent; adjusting the carbon steel to the transformation temperature for bainite and maintaining the transformation temperature for a certain period of time; and then cooling the carbon steel. The carbon steel stays in the bath until a defined percentage of the bainite structure relative to the total structure of the carbon steel has formed. Residues of the quenching agent are removed from the surface of the carbon steel by blowing the same off when the carbon steel is discharged from the bath, and the remaining structure components of the carbon steel are then transformed into bainite in an isothermal tempering station without deflecting the carbon steel at all.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: July 5, 2011
    Assignees: C.D. Wälzholz GmbH, Ebner Industrieofenbau GmbH
    Inventors: Werner Kaiser, Heinz Höfinghoff, Hans-Toni Junius, Michael Hellmann, Peter Ebner, Heribert Lochner
  • Patent number: 7586068
    Abstract: A device and method are provided for protecting the inside of a microwave oven from food splattering during cooking. The device is made of breathable food grade paper, is a truncated cone in shape with a pleated side wall for rigidity and at least one reinforcing structure on a top surface. Top surface reinforcement may be one or more folded paper reinforcement bars or folded paper reinforcement members, shaped as circles, squares, or any other convenient shape. Reinforcement bars may be radial across the top surface or nonradial, and may be linear or curvilinear. The food shield device is made by conventional paper die stamping methods.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: September 8, 2009
    Inventors: Peter Shaw, Michael Hellmann
  • Publication number: 20090139616
    Abstract: The invention relates to a method for continuously creating a bainite structure in a carbon steel, especially a strip steel. The method comprises the following steps: the carbon steel (1) is austenitized (3) at a temperature exceeding the austenitizing temperature; the austenitized carbon steel (1) is introduced into a bath (2) containing a quenching agent (21) in order to cool the carbon steel (1) to a temperature lying below the austenitizing temperature; the carbon steel (1) is adjusted to the transformation temperature for bainite and is maintained (13) at the transformation temperature for a certain period of time; and the carbon steel is then cooled (17).
    Type: Application
    Filed: October 31, 2006
    Publication date: June 4, 2009
    Inventors: Werner Kaiser, Heinz Hofinghoff, Hans-Toni Junius, Michael Hellmann, Peter Ebner, Heribert Lochner
  • Publication number: 20060213905
    Abstract: A device and method are provided for protecting the inside of a microwave oven from food splattering during cooking. The device is made of breathable food grade paper, is a truncated cone in shape with a pleated side wall for rigidity and at least one reinforcing structure on a top surface. Top surface reinforcement may be one or more folded paper reinforcement bars or folded paper reinforcement members, shaped as circles, squares, or any other convenient shape. Reinforcement bars may be radial across the top surface or nonradial, and may be linear or curvilinear. The food shield device is made by conventional paper die stamping methods.
    Type: Application
    Filed: May 19, 2006
    Publication date: September 28, 2006
    Inventors: Peter Shaw, Michael Hellmann
  • Publication number: 20060151489
    Abstract: A disposable microwave food shield for preventing splatter of food onto the interior surfaces of microwave ovens made from absorbent, yet rigid paper material.
    Type: Application
    Filed: May 23, 2005
    Publication date: July 13, 2006
    Inventors: Michael Hellmann, Peter Shaw