Patents by Inventor Thomas Schomisch

Thomas Schomisch 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: 6935438
    Abstract: A battery-operated electrical tool (10) is provided with a machine housing (11) that has a longish, substantially rod-shaped housing portion (12) containing an electric drive motor (13) and an end portion (15) on which a terminal connection surface (16) with push-in receptacle (17) for the detachable attachment of a battery packet (14) is provided, which said battery packet is provided with a connection part (18) that comprises a seating surface (19) matched to the connection surface (16) for seating on said connection surface, and comprising a push-in part (20) engaging in the push-in receptacle (17). The end portion (15) is inflected toward one side in relation to the housing portion (12) out of the direction of longitudinal extension. The terminal connection surface (16) of the end portion (15) extends within a plane (21) that is oriented skew in relation to a plane (22) extending substantially perpendicularly to the longitudinal axis (23) of the housing portion (12).
    Type: Grant
    Filed: June 16, 2001
    Date of Patent: August 30, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Albrecht Hofmann, Harald Krondorfer, Markus Heckmann, Thomas Schomisch
  • Patent number: 6869346
    Abstract: The invention is based on a tool receiver for a grinder, in particular for a handheld angle grinder (10), having a carrier device (12, 14, 16, 182, 184, 300), via which an application tool (18, 32, 186, 188) can be actively connected to a drive shaft (54). It is proposed that the application tool (18, 32, 186, 188) be actively connectable to the carrier device (14, 16, 182, 184) via at least one detent element (24, 26, 190, 192, 194, 196, 198, 200, 302) movable against a spring force that snaps into place in an operating position of the application tool (18, 32, 186, 188) and immobilizes the application tool (18, 32, 186, 188) with positive engagement.
    Type: Grant
    Filed: March 31, 2001
    Date of Patent: March 22, 2005
    Assignees: Robert Bosch GmbH, Tyrolit Schleifmittel Swarovski K.G.
    Inventors: Dieter Wendt, Harald Krondorfer, Ralph Dammertz, Markus Heckmann, Joachim Schadow, Thomas Schomisch, Marco Brancato, Christof Hoelzl, Johann Huber, Wilhelm Schulze
  • Publication number: 20040266325
    Abstract: The invention is based on an insert tool with a rotationally driveable disk-shaped hub and an abrasive disposed in particular in a radially outer region, in particular of the kind used for a cut-off wheel, a grinding disk, a rough grinding disk, a cutting disk, or an abrasive paper.
    Type: Application
    Filed: May 10, 2004
    Publication date: December 30, 2004
    Inventors: Albrecht Hofmann, Harald Krondorfer, Markus Heckmann, Thomas Schomisch
  • Patent number: 6814655
    Abstract: An insert tool with grinding blade and a supporting disk, and with a hub, which has at least one opening that permits the hub to be clamped to a driver flange of a grinder, which flange is connected to a drive shaft, wherein the hub is constituted by a component that is separate from the supporting disk, the hub can be operatively connected to a driver device of the grinder by means of at least one detent element, which is supported so that it can move in opposition to a spring element and which engages in detent fashion in an operating position of the hub and fixes the hub in a positively engaging manner.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: November 9, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Albrecht Hofmann, Harald Krondorfer, Markus Heckmann, Thomas Schomisch
  • Patent number: 6786811
    Abstract: A grinding machine tool receptacle for a hand-guided angle grinding machine has a slaving device by which an insert tool is operatively connectable to a drive shaft, the insert tool is operatively connectable to the slaving device via at least one detent element supported movably counter to a spring element, which detent element snaps into place in an operating position of the insert tool driven by the spring element and fixes the insert tool by positive engagement, the detent element is displaceable in the axial direction counter to the spring element, and the insert tool is connected to the slaving device in the circumferential direction via at least a first element and in the axial direction via at least a second element, with the second element arranged for fixing of the insert tool with a spring force.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: September 7, 2004
    Assignees: Robert Bosch GmbH, Tyrolit Schleifmittel Swarovski K.G.
    Inventors: Harald Krondorfer, Ralph Dammertz, Zaal-Azhar Alias, Markus Heckmann, Joachim Schadow, Thomas Schomisch, Marco Brancato, Christof Hoelzl, Johann Huber, Wilhelm Schulze
  • Publication number: 20040014412
    Abstract: In a hand-guided electrical tool 3 with a housing 2 that has a receiving collar 20 embodied on it and with a guard hood 1 that can be attached to the receiving collar 20 and has a clamping strap 16, which can move freely around the receiving collar 20 in a first position and rests snugly against the receiving collar 20 in a second position, a secure connection between the guard hood 1 and the housing 2 is achieved by virtue of the fact that the receiving collar 20 has at least one protrusion 21, which protrudes beyond the second area in the radial direction away from the spindle axle 5, and between the protrusion 21 and the housing 2, there is a distance h, which approximately corresponds to the width b of the clamping strap 16, and by virtue of the fact that that the clamping strap 16 has at least one indentation 12 so that the first diameter d1 of the opening 10 of the clamping strap 16 in the vicinity of the indentation 12 is greater than the second diameter d2 in the remaining region, wherein the first di
    Type: Application
    Filed: January 15, 2003
    Publication date: January 22, 2004
    Inventors: Albrecht Hofmann, Harald Krondorfer, Markus Heckmann, Thomas Schomisch
  • Publication number: 20040012160
    Abstract: A system with a tool-holding socket, which has a driver device (10) that can be used to operationally connect an insert tool (12) to a drive shaft (14), and has an insert tool (12).
    Type: Application
    Filed: March 26, 2003
    Publication date: January 22, 2004
    Inventors: Harald Krondorfer, Markus Heckmann, Thomas Schomisch, Johann Huber
  • Publication number: 20030181152
    Abstract: The invention is based on an insert tool with grinding blade (10, 12) and a supporting disk (14, 16), and with a hub (18, 20), which has at least one opening (22, 24, 26) that permits the hub (18, 20) to be clamped to a driver flange (28) of a grinder (30), which flange is connected to a drive shaft (62).
    Type: Application
    Filed: February 24, 2003
    Publication date: September 25, 2003
    Inventors: Albrecht Hofmann, Harald Krondorfer, Markus Heckmann, Thomas Schomisch
  • Publication number: 20030136242
    Abstract: In the case of a sawing tool for a circular power saw having two coaxial saw blades (11, 11′) capable of being driven in opposite directions and rotating directly past each other, the anterior—relative to the direction of rotation—cutting edge (161, 161′) of each active cutting edge (16, 16′) is situated in a plane extending through the saw blade axis (18, 18′) to produce, using a simple design, an axial force on each saw blade (11, 11′) that counteracts the forcing apart of the saw blades (11, 11′) during the cutting process, and the active cutting edges (16, 16′) are sloped in the direction of the saw blade axes (18, 18′) in such a fashion that they incline downward from the facing sides of the saw blades (11, 11′) toward the sides of the blades facing away from each other (FIG. 5).
    Type: Application
    Filed: December 24, 2002
    Publication date: July 24, 2003
    Inventors: Albrecht Hofmann, Ivo Gruber, Thomas Schomisch
  • Publication number: 20030129933
    Abstract: The invention is based on a tool receiver for a grinder, in particular for a handheld angle grinder (10), having a carrier device (12, 14, 16, 182, 184, 300), via which an application tool (18, 32, 186, 188) can be actively connected to a drive shaft (54).
    Type: Application
    Filed: March 1, 2002
    Publication date: July 10, 2003
    Inventors: Dieter Wendt, Harald Krondorfer, Ralph Dammertz, Markus Heckmann, Joachim Schadow, Thomas Schomisch, Marco Brancato, Christof Hoelzl, Johann Huber, Wilhelm Schulze
  • Publication number: 20030115995
    Abstract: A battery-operated electrical tool (10) is provided with a machine housing (11) that has a longish, substantially rod-shaped housing portion (12) containing an electric drive motor (13) and an end portion (15) on which a terminal connection surface (16) with push-in receptacle (17) for the detachable attachment of a battery packet (14) is provided, which said battery packet is provided with a connection part (18) that comprises a seating surface (19) matched to the connection surface (16) for seating on said connection surface, and comprising a push-in part (20) engaging in the push-in receptacle (17). The end portion (15) is inflected toward one side in relation to the housing portion (12) out of the direction of longitudinal extension. The terminal connection surface (16) of the end portion (15) extends within a plane (21) that is oriented skew in relation to a plane (22) extending substantially perpendicularly to the longitudinal axis (23) of the housing portion (12).
    Type: Application
    Filed: July 8, 2002
    Publication date: June 26, 2003
    Inventors: Albrecht Hofmann, Harald Krondorfer, Markus Heckmann, Thomas Schomisch
  • Publication number: 20030104773
    Abstract: The invention is based on a grinding machine tool receptacle, in particular for a hand-guided angle grinding machine (10), having a slaving device (12, 14, 16, 300), by way of which an insert tool (18, 32) can be operatively connected to a drive shaft (54).
    Type: Application
    Filed: February 20, 2002
    Publication date: June 5, 2003
    Inventors: Harald Krondorfer, Ralph Dammertz, Zaal-Azhar Alias, Markus Heckmann, Joachim Schadow, Thomas Schomisch, Marco Brancato, Christof Hoelzl, Johann Huber, Wilhelm Schulze
  • Publication number: 20030075028
    Abstract: The invention is based on a hand power tool with a disk-shaped tool (14) that can be driven to rotate around a rotation axis (16), in particular a manually guided right angle grinder, a manually guided circular saw, or the like, including a pivoting tool cover (22).
    Type: Application
    Filed: October 24, 2002
    Publication date: April 24, 2003
    Inventors: Albrecht Hofmann, Harald Krondorfer, Thomas Schomisch
  • Publication number: 20030000716
    Abstract: In a power tool with at least one rotating cutting wheel (11), in particular a circular saw blade, having a housing (13) in which a drive motor (14) is accommodated so that its driven shaft (15) extends along the longitudinal housing axis (16), having at least one drive spindle (20) that is supported in rotary fashion in the housing (13) and is aligned at right angles to the driven shaft (15), which drive spindle protrudes laterally from the housing (13) and on the projecting end, supports a cutting wheel mount (24), and having a set of gears for transmitting the rotating motion of the driven shaft (15) to the drive spindle (20), in order to achieve an ergonomically favorable, tilting moment-free operation with the power tool, the housing (13) in the vicinity of the drive spindle (20) and cutting wheel (11), and the drive spindle (20) with the cutting wheel mount (24) are embodied in such a way that the cutting wheel (11) lies in the same plane as the driven shaft (15).
    Type: Application
    Filed: June 24, 2002
    Publication date: January 2, 2003
    Inventors: Albrecht Hofmann, Thomas Schomisch
  • Publication number: 20030000363
    Abstract: In a sawing tool for a hand circular power saw with two coaxial saw blades (11, 12), which can be driven to counter-rotate in relation to each other, which each have an outer set of teeth (13, 14) that represents a main cutter, in order to improve the cutting result even with continuing wear on the cutting edge and in order to reduce damage to the teeth (13, 14) when the saw blades (11, 12) are imperfectly balanced, a trimmer (10) is disposed between the two saw blades (11, 12), which serves to cut away a piece of material possibly remaining in the kerf between the saw blades (11, 12) and which is non-rotatably attached to one of the saw blades (11, 12) and shares an axial overlap with the main cutters (FIG. 3).
    Type: Application
    Filed: July 31, 2002
    Publication date: January 2, 2003
    Inventors: Albrecht Hofmann, Harald Krondorfer, Thomas Schomisch, Juergen Graef, Helmut Hammer, Andreas Kisselbach
  • Publication number: 20030000717
    Abstract: In a power tool with two cutting wheels (11, 12), which rotate past each other in opposite directions, rest directly against each other, and can be driven by two drive spindles (14, 15) disposed concentrically to each other, and with a tool fitting (13) for the cutting wheels (11, 12) that has a support flange (18, 24), which is non-rotatably connected to the respective inner or outer drive spindle and provides a centered support and form-fitting rotary slaving for the cutting wheels (11, 12), and has clamping means for securing the form-fitting engagement between the cutting wheels (11, 12) and the support flanges (18, 24), in order to produce a simple design of the tool fitting (13), with a high operational reliability and a low space requirement, as well as tool-free changing of the cutting wheels, the clamping means have a screw part (27), which supports the second support flange (24) and whose end can be screwed without tools into the inner drive spindle (15), and have a clamping part, which can be actua
    Type: Application
    Filed: July 31, 2002
    Publication date: January 2, 2003
    Inventors: Albrecht Hofmann, Harald Krondorfer, Thomas Schomisch