Patents Assigned to Tyrolit Schleifmittelwerke Swarovski K.G.
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Patent number: 9751191Abstract: A grinding tool, such as a cutting disc, includes a matrix, in particular a sintered metal matrix, and diamonds embedded in the matrix. At least the majority of the diamonds are each assigned at least one wear-promoting particle. The at least one wear-promoting particle is likewise embedded in the matrix.Type: GrantFiled: January 13, 2017Date of Patent: September 5, 2017Assignee: TYROLIT-SCHLEIFMITTELWERKE SWAROVSKI K.G.Inventor: Franz Egger
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Publication number: 20140273778Abstract: A grinding tool, such as a cutting disc, includes a matrix, in particular a sintered metal matrix, and diamonds embedded in the matrix. At least the majority of the diamonds are each assigned at least one wear-promoting particle and/or at least one wear-inhibiting particle. The at least one wear-promoting particle and the at least one wear-inhibiting particle are likewise embedded in the matrix.Type: ApplicationFiled: May 28, 2014Publication date: September 18, 2014Applicant: Tyrolit - Schleifmittelwerke Swarovski K.G.Inventor: Franz EGGER
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Patent number: 7258515Abstract: The invention is based on a tool holder for a power tool (i0), in particular for a hand-guided power angle grinder, having a slaving device (12) by way of which an inserted tool (14), which has a disklike hub (64), can be operatively connected to a drive shaft (16), and having a fastening device (18) which has a holding position and a release position. It is proposed that with the fastening device (18), the inserted tool (14) can be connected by positive engagement to the slaving device (12) in the circumferential direction (20, 22) in the release position and additionally in the axial direction (24, 26) in the holding position.Type: GrantFiled: April 11, 2003Date of Patent: August 21, 2007Assignees: Robert Bosch GmbH, Tyrolit Schleifmittelwerke Swarovski K.G.Inventor: Harald Krondorfer
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Patent number: 6902471Abstract: The invention is based on an insertable tool having a rotationally drivable, disk-shaped hub (10, 12), on which a grinding means (14) forming a cutoff disk, grinding disk, roughing disk, or abrasive disk is secured in the radially outer region. It is proposed that the grinding means (14) and the hub (10, 12) are joined via joining means (26) in the manner of a positive connection at least in the direction of rotation.Type: GrantFiled: January 23, 2002Date of Patent: June 7, 2005Assignees: Robert Bosch GmbH, Tyrolit Schleifmittelwerke Swarovski K.G.Inventors: Harald Krondorfer, Markus Heckmann, Joachim Schadow, Christof Hoelzl, Johann Huber, Wilhelm Schulze
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Patent number: 6338907Abstract: The invention relates to an abrasive tool comprising a support body and at least one abrasive element connected thereto. Said abrasive element has an abrasive grain which is joined by a sintered metal. The sintered metal used for joining is copper-coated iron and is alloyed with metal borides, metal carbides and/or metal silicides and also with tin.Type: GrantFiled: April 3, 2000Date of Patent: January 15, 2002Assignee: Tyrolit Schleifmittelwerke Swarovski K.G.Inventor: Wolfgang Strelsky
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Patent number: 6283845Abstract: A grinding wheel includes a carrier wheel and a grinding layer formed on a peripheral surface of the carrier wheel. The grinding layer includes grinding segments and cup-shaped or scoop-shaped openings between the grinding segments.Type: GrantFiled: December 21, 1999Date of Patent: September 4, 2001Assignee: Tyrolit Schleifmittelwerke Swarovski K.G.Inventors: Markus Fischbacher, Hans Noichl
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Patent number: 5645039Abstract: The invention relates to a cutting wire, with preferably metal-bonded cutting beads with diamond abrasives, and a wire connector to form a loop for use on mobile and stationary wire sawing machines. Through the invention, the life of the cutting wire connectors is considerably improved. This improvement of service life is achieved because premature wire breaks in the proximity of the connector are avoided by introducing preferably annular inserts made of an elastic mass between the main wire and the clamping sleeve of the connector before the clamping action is executed so that after clamping an elastic, pre-stressed, vibration-dampening zone is created.Type: GrantFiled: June 12, 1995Date of Patent: July 8, 1997Assignee: Tyrolit Schleifmittelwerke Swarovski K.G.Inventors: Franz Egger, Josef Plattner
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Patent number: 5129189Abstract: A grinding body having a matrix comprising a binding agent (1), abrasive grain (2) and filling materials. The matrix which is of a Shore hardness of between D 35 to D 95, preferably D 70 to D 80, is provided with filling means comprising porous conglomerates (3).Type: GrantFiled: June 11, 1991Date of Patent: July 14, 1992Assignee: Tyrolit Schleifmittelwerke Swarovski K.G.Inventor: Klaus Wetscher
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Patent number: 5116392Abstract: An abrasive article with abrasive grain such as corundum, a binder which is a hardenable organic or inorganic system, for example plastic, such as phenol resin, and grinding-active fillers, as well as an abrasive with abrasive grain such as corundum, a binder which is a hardenable organic or inorganic system, for example plastic, such as phenol resin, and grinding-active fillers. The abrasive compound of the abrasive consisting of abrasive grain, binder and the fillers is placed on a flexible substrate, which is formed by a nonwoven fabric. New low-priced fillers with low toxicity are incorporated in the abrasive article and, in fact, metal complex salts with the following structure:uM.sub.1 .multidot.vM.sub.2 .multidot.wHal.multidot.xChal.multidot.zPhwhere:M.sub.1 =pure metal or mixture of alkali metal, alkaline earth metal and/or AlM.sub.Type: GrantFiled: December 27, 1989Date of Patent: May 26, 1992Assignee: Tyrolit - Schleifmittelwerke Swarovski K.G.Inventors: Volker Selgrad, Friedrich Sladky
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Patent number: 5086751Abstract: A saw cable for a cable saw for cutting natural rock or stone, masonry or the like includes cutting beads provided with cutting grain, for example diamond, provided at intervals or spacings from each other on a metal cable. Spacer sleeves of castable or injection-moldable material are disposed between the cutting beads. The diameter of the spacer sleeves is smaller than the diameter of the cutting beads. The spacer sleeves (4) have annular lands (4'), the diameter of which is the same as the diameter of the cutting beads.Type: GrantFiled: April 2, 1991Date of Patent: February 11, 1992Assignee: Tyrolit Schleifmittelwerke Swarovski K.G.Inventors: Johann Pfister, Karl Daum
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Patent number: 4615151Abstract: To manufacture a sound absorbing grinding wheel, vibration damping foils (2) and zones of the grinding compound forming the grinding layers (1) are alternately inserted or poured into a mold (5) and compressed. The obtained grinding wheel blank (7) is cured in a furnace at temperatures from 150.degree. C. to 200.degree. C. The foils (2) are of butyl rubber.Type: GrantFiled: December 6, 1984Date of Patent: October 7, 1986Assignee: Tyrolit Schleifmittelwerke Swarovski K.G.Inventors: Johann Huber, Otto Thanner
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Patent number: 4338357Abstract: An improved method for coating fibers, for example, glass fibers, which are used in reinforcement webs for objects under high strain e.g. in grinding discs.The fibers are subjected to a two stage coating. In the first stage the fibers are coated with a liquid resin or resin solution.In the second stage resin in powdered form is deposited on the fibers.Thereafter, the fibers are subjected to a heat treatment.The products obtained are tacky to the touch and are used in this state in other mixtures of resinous binders and the like so that a good contact is made between the reinforcing material and the additional binder.Type: GrantFiled: November 26, 1980Date of Patent: July 6, 1982Assignee: Tyrolit Schleifmittelwerke Swarovski K.G.Inventors: Herwig Pichler, Harald Helletsberger, Ernst Geissler, Heinrich Ofer, Bernhard Fugenschuh
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Patent number: 4278449Abstract: Abrasive grain, corundum (Al.sub.2 O.sub.3) comprising titanium oxide, preferably Ti.sub.2 O.sub.3, is provided with a ceramic coating. The abrasive grain is subjected to a heat treatment whereby the Ti-oxides change from the trivalent into the quadrivalent degree of oxidation. The coating and the change of the degree of oxidation are effected simultaneously.Type: GrantFiled: December 6, 1979Date of Patent: July 14, 1981Assignee: Tyrolit-Schleifmittelwerke Swarovski K.G.Inventors: Harald Helletsberger, Anton Aichhorn, Erich Bogusch
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Patent number: 4259089Abstract: In a grinding disc reinforcement fibres of high strength are used and such fibres or normal glass fibres are covered with a protective coating including fine grain.Type: GrantFiled: November 9, 1979Date of Patent: March 31, 1981Assignee: Tyrolit Schleifmittelwerke Swarovski K.G.Inventors: Walter Waizer, Harald Helletsberger
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Patent number: 4069622Abstract: An abrasive wheel assembly, preferably an abrasive cut-off wheel, includes a plurality of segments, each of which comprises an embedded fixing or securing plate, preferably metal, that is inserted to a certain degree into the segment and has a projecting rim part securable to a circular blade. The segment further comprises a core material, e.g. glass fiber, that extends over the total height of the segment.Type: GrantFiled: September 8, 1976Date of Patent: January 24, 1978Assignee: Tyrolit-Schleifmittelwerke Swarovski K.G.Inventor: Daniel Swarovski
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Patent number: 4035161Abstract: An abrasive body is formed with a center bore therethrough. A molding ring is placed within the center bore to define an annular space. A foamed plastic such as polyurethane is supplied to the space and when the foamed plastic sets there results a rigid and dense hub for the abrasive body. A portion of the plastic foams into the inner wall of the abrasive body.Type: GrantFiled: January 5, 1976Date of Patent: July 12, 1977Assignee: Tyrolit-Schleifmittelwerke Swarovski K.G.Inventors: Ernst Geissler, Wilheim Haidacher, Heinrich Ofer
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Patent number: D431775Type: GrantFiled: August 30, 1999Date of Patent: October 10, 2000Assignee: Tyrolit Schleifmittelwerke Swarovski, K.G.Inventors: Hermann Plattner, Monika E. Oberleit, Ute Nalter, Wolfgang Huber, Peter Tobias, Harald Helletsberger, Anselm Kaspar