Patents Assigned to GTP SCHÄFER GIESSTECHNISCHE PRODUKTE GMBH
  • Patent number: 11358212
    Abstract: A riser sleeve (1) for using when pouring metals into a casting mould includes a riser body (2). The riser body (2) includes a riser cavity (3) for holding liquid metal and a riser opening (4) for joining the riser cavity (3) to a mould cavity of the casting mould during the casting process. The riser cavity (3) has a greater diameter than the diameter of the riser opening (4) in at least one portion, the riser body (2) is made of an insulating and/or exothermic riser material. The riser body (2) is formed as a single piece, the riser opening (4) defines an axis (5), and the riser cavity (3) is asymmetric to the axis (5).
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: June 14, 2022
    Assignee: GTP Schäfer Gießtechnische Produkte GmbH
    Inventors: Olof Hilger, Jörg Schäfer, Thomas Schäfer
  • Patent number: 10525526
    Abstract: A method for producing a feeder (10) that is intended for use in a casting mold used for the casting of metals and comprises a feeder body (11), which encloses an inner cavity (25) as a feeder volume, consists of an exothermic and/or insulating material, has at least one lateral wall region (12) and a bottom region (13) with a feeder opening (14) arranged therein for connecting the inner cavity (25) of the feeder body (11) to the mold cavity of the casting mold during the casting operation and has a mesh-like fabric consisting of a refractory material covering over the feeder opening (14) therein, is characterized in that, in the course of the production of the feeder in a core shooter, a piece of fabric (21) of the mesh-like fabric is positioned in a pattern device (17) forming the shape of the feeder (10) in a core box (30) of the core shooter, in such a way that the peripheral region (22) of the piece of fabric (21) positioned in the bottom region (13) of the later feeder (10) is at least partially bent up
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: January 7, 2020
    Assignee: GTP Schäfer Giesstechnische Produkte GmbH
    Inventors: Jörg Schäfer, Thomas Schäfer
  • Patent number: 10406595
    Abstract: In a method for producing a riser for inserting into a casting mold used for casting metals, the riser includes a riser body (31) surrounding an inner cavity (36) as a riser volume and is composed of an exothermic and/or insulating riser material (30). To produce a single-piece riser body (31) in a two-part core box (10), a cavity (14) reproducing the outer contour of the riser body (31) is formed and, in order to produce the inner cavity (36), a reversibly expandable king (15) is set in the cavity (14) in such a way that, in the shooting of the riser body (31), the wall region (32), the cup region (33), and the base region (34) of the riser body are formed by the riser material (30) introduced into the intermediate space (41) between the expanded king (15) and the inner wall (40) of the cavity (14).
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: September 10, 2019
    Assignee: GTP SCHAEFER GIESSTECHNISCHE PRODUKTE GMBH
    Inventors: Thomas Baginski, Jörg Schäfer, Thomas Schäfer
  • Patent number: 10016806
    Abstract: A casting flow running system (11) for supplying liquid metal to a mold cavity formed in a casting mold includes a plurality of pipe sections (13) that are connected to one another; at least one ingate pipe (13) for connecting the casting flow runner system (11) with an ingate of a casting model forming the mold cavity; and a frame (15) made of a heat-resistant material disposed on the ingate pipe (13). The frame has a net-like webbing (18) made of a fireproof material tensioned therein and is attached to the ingate pipe (13) such that the netlike webbing (18) at least partially spans a cross section of the ingate pipe (13) and is positioned in a region proximate to a surface of a casting piece formed by filling the mold cavity.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: July 10, 2018
    Assignee: GTP SCHAEFER GIESSTECHNISCHE PRODUKTE GmbH
    Inventors: Joerg Schaefer, Thomas Schaefer
  • Patent number: 9981307
    Abstract: A feeder (10) for use in a casting mold includes a feeder body (11) made from an exothermic and/or insulating material. The feeder body has a bottom surface (15) with a feeder opening (16) for connection of the inner cavity (12) of the feeder body (1) with the mold cavity of the casting mold during a casting process. A ring-shaped frame (17) made of a heat-resistant material is secured to the feeder body (11). A netlike webbing (18) made from a fire-resistant material is tensioned within the ring-shaped frame (17). The frame (17) is arranged on the surface (15) of the feeder body (11), such that the netlike webbing (18) is positioned with the feeder (10) formed in the casting mold directly on a surface of a casting piece to be formed during casting.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: May 29, 2018
    Assignee: GTP SCHAEFER GIESSTECHNISCHE PRODUKTE GMBH
    Inventors: Joerg Schaefer, Thomas Schaefer
  • Patent number: 9855597
    Abstract: A breaker core for use in a casting process includes a disk-shaped breaker core (10) having breaker core body and a through-opening (11) for liquid metal. A ring-shaped frame (12) made from a heat-resistant material is secured to the breaker core (10) and has a netlike webbing (15) tensioned therein. The netlike webbing (15) is made from a fire-proof material and spans the through-opening (11) of the breaker core (10) on an underside of a feeder. The frame (17) is secured with an outer sidewall (17) to the body of the disk-shaped breaker core (10). A plane of the netlike webbing (15) tensioned in the frame (12) is secured with a stepped offset to an upper end of the sidewall (17) facing the feeder, so that the netlike webbing (15) is placed in an area of an underside of the breaker core (10) facing the casting model.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: January 2, 2018
    Assignee: GTP SCHAEFER GIESSTECHNISCHE PRODUKTE GMBH
    Inventors: Joerg Schaefer, Thomas Schaefer
  • Patent number: 9573188
    Abstract: The invention relates to a method for producing a feeder configured for use in a casting mold used for casting metals, wherein the feeder has a feeder body (14) enclosing a feeder cavity (15) and a through opening (19) in its base region (18) for connecting the feeder cavity (15) to the casting mold and the feeder body (14) consists of an exothermic material and is enclosed on its outer side at least in regions by an external shell (27) consisting of insulating refractory material, and wherein the feeder is provided with a feeder foot (20) arranged externally in its base region (18) and having an opening (21) flush with the through opening (19).
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: February 21, 2017
    Assignee: GTP SCHÄFER GIESSTECHNISCHE PRODUKTE GMBH
    Inventors: Thomas Schäfer, Thomas Baginski
  • Publication number: 20170014896
    Abstract: A feeder insert (10) for use in a vertically split casting mold that is used for the casting of metals includes a feeder body (11), which has an internal cavity (12) as feeder volume and which is composed of an exothermic and/or insulating material and which, in the base surface (17) thereof, which faces toward a pattern inserted into the casting mold during production of the casting mold, has a feeder opening (18) for connecting the cavity (12) to the mold cavity of the casting mold, wherein the feeder body (11) is oriented with its longitudinal axis (21), which runs through the feeder opening (18), at an angle with respect to the vertically oriented pattern and so as to be horizontal relative to the pattern, and the volume of the internal cavity (12) is of asymmetrical design with respect to an imaginary parting plane (25) running in or parallel to the longitudinal axis (21), characterized in that the feeder body (11) has an uneven mass distribution with respect to the parting plane (25), with a center of m
    Type: Application
    Filed: July 1, 2014
    Publication date: January 19, 2017
    Applicant: GTP Schaefer Giesstechnische Produkte GmbH
    Inventors: Thomas Schaefer, Tobias Hesse
  • Publication number: 20150283602
    Abstract: The invention relates to a method for producing a feeder configured for use in a casting mold used for casting metals, wherein the feeder has a feeder body (14) enclosing a feeder cavity (15) and a through opening (19) in its base region (18) for connecting the feeder cavity (15) to the casting mold and the feeder body (14) consists of an exothermic material and is enclosed on its outer side at least in regions by an external shell (27) consisting of insulating refractory material, and wherein the feeder is provided with a feeder foot (20) arranged externally in its base region (18) and having an opening (21) flush with the through opening (19).
    Type: Application
    Filed: November 29, 2013
    Publication date: October 8, 2015
    Applicant: GTP SCHÄFER GIESSTECHNISCHE PRODUKTE GMBH
    Inventors: Thomas Schäfer, Thomas Baginski