Patents Assigned to Goetze AG
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Patent number: 4185843Abstract: A machine part, such as a piston ring or sealing strip for an internal combustion engine, having one surface arranged to be in sliding contact with a cooperating part to thus be subjected to friction wear, the machine part being provided with a recess extending inwardly from the one surface and presenting at least one lateral wall, and the machine part comprising a layer of material different from the material of the machine part, which layer is disposed in the recess at the sliding surface, in which the layer is held in the recess in a manner such that no bond exists between the layer and the lateral wall.Type: GrantFiled: June 23, 1978Date of Patent: January 29, 1980Assignee: Goetze AGInventors: Horst Beyer, Ulrich Buran, Hans-Joachim Neuhauser
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Patent number: 4183544Abstract: A spacer-expander member for holding one or two cylinder-engaging rails in a groove in a piston is formed to present a plurality of radially inwardly-directed spacer feet which are so located that they engage the groove bottom in a region spaced from the groove sides.Type: GrantFiled: May 4, 1978Date of Patent: January 15, 1980Assignee: Goetzewerke, Friedrich Goetze AGInventors: Martin Morsbach, Paul Johren
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Patent number: 4172324Abstract: A device for measuring the angle of inclination of a surface, particularly the flank angle of a piston ring having a trapezoidal cross section. The device includes a feeler assembly which can be brought into contact with the surface. The feeler assembly comprises a pivotally supported feeler head provided with a measuring edge adapted to lie on the surface to be measured and thus conform to the surface inclination. The device further has an arrangement to measure the pivot angle of the feeler head when the measuring edge lies along its entire length on the surface to be measured.Type: GrantFiled: May 19, 1978Date of Patent: October 30, 1979Assignee: Goetzewerk-Friedrich Goetze AGInventor: Franz-Joseph Meyer
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Patent number: 4153477Abstract: A friction stressed machine part of cast iron with a ledeburitic-containing bearing surface contains 0.1 to 10 area percent of predominantly nodular-shaped graphite in the ledeburitic-containing bearing surface. A number of methods for producing such a machine part are provided, including, casting the machine part against a quenching plate so that it hardens in a mottled manner in the region of the bearing surface.Type: GrantFiled: April 28, 1977Date of Patent: May 8, 1979Assignee: Goetzewerke Friedrich Goetze AGInventors: Horst Beyer, Hans J. Neuhauser, Hans-Jurgen Veutgen
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Patent number: 4145060Abstract: An axially and radially clamping spreader ring for an oil scraper piston ring, comprises a profiled metal band which has been made resilient in the circumferential direction by corrugations and/or cuts. The two ends of the metal band abut against one another and the metal band is provided in the area of one side with axial and radial supporting faces to accommodate at least one band-shaped scraper ring. A plurality of radially outwardly extending protrusions are distributed over the circumference of the band in the vicinity of the side of the spreader ring which is axially opposite the side which accommodates the scraper ring. The protrusions are separated from one another by wide lubricating channels and, when installed, contact the cylinder wall.Type: GrantFiled: December 17, 1976Date of Patent: March 20, 1979Assignee: Goetze AGInventors: Friedhelm Stecher, Martin Morsbach, Paul Johren
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Patent number: 4141263Abstract: A device for the centered clamping, in a turning machine, of an annular workpiece or workpiece stack formed of a plurality of annular workpieces, has a centering cylinder; an arrangement for axially displacing the centering cylinder; first and second axially aligned clamping rings for engaging opposite, radially extending end faces of a workpiece or workpiece stack positioned in a space between the clamping rings; and a clamping arrangement for axially urging the two clamping rings to one another. The clamping arrangement includes a tensioning anchor extending within the work spindle of the turning machine. The device further has a releasable coupling for detachably connecting the tensioning anchor to the work spindle. The first clamping ring is secured to the tensioning anchor and the second clamping ring is fixedly attached to the work spindle.Type: GrantFiled: July 20, 1977Date of Patent: February 27, 1979Assignee: Goetze AGInventor: Hermann Leutgab
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Patent number: 4139205Abstract: A piston ring formed of an annular, cross-sectionally bent metal strip has a series of circumferentially distributed slots extending in a generally axial orientation from edges of the strip. The slots are in an overlapping relationship when viewed circumferentially for defining a series of circumferential, resilient webs. The webs have web portions that are readily deformable to bending forces.Type: GrantFiled: March 6, 1978Date of Patent: February 13, 1979Assignee: Goetze AGInventors: Gerhard Duck, Martin Morsbach, Paul Johren
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Patent number: 4125266Abstract: In a lip sealing ring made of two elastomer materials including, a first elastomeric material made from a non-fluoroelastomer, a second elastomeric material made of a fluoroelastomer and serving as the sealing lip, and an embedded reinforcing metal ring, the improvement wherein the non-fluoroelastomer material is an acrylelastomer consisting of a terpolymer of ethylene, methylacrylate and a carboxyl containing monomer, with the sealing lip portion and the non-fluoroelastomer portion being vulcanized to the metal ring with a binder comprised of a mixture of monomeric silanes.Type: GrantFiled: November 23, 1977Date of Patent: November 14, 1978Assignee: Goetzewerke Friedrich Goetze AGInventors: Wolf-Dieter Schonherr, Karl-Heinz Wolfert, Veit Lachmann
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Patent number: 4125043Abstract: A device for the centered clamping of an annular workpiece or workpiece stack formed of a plurality of annular workpieces, to hold the same in position for the machining of the inner faces thereof, includes first and second axially aligned clamping rings for engaging opposite, radially extending end faces of a workpiece or workpiece stack positioned in a space between the clamping rings; a centering cylinder surrounding the space and having a lead-in chamfer at one edge thereof; and a clamping arrangement for moving the two clamping rings relative to one another.Type: GrantFiled: July 20, 1977Date of Patent: November 14, 1978Assignee: Goetzewerke Friedrich Goetze AGInventor: Hermann Leutgab
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Patent number: 4101319Abstract: Plasma deposition welding powder for the production of a wear-resistant coating on machine parts subject to friction consists essentially of a mixture of two components A and B, of which component A is present at 70 to 99.5 weight percent of the total of A and B. Component A comprises at least one metal selected from the group consisting of molybdenum and tungsten. Component B is present at 0.5 to 30 weight percent of the total of A and B and consists essentially of at least one alloy or compound of at least one of the metals selected from the group consisting of cobalt, chromium, iron, nickel, copper and manganese, with at least one of the elements selected from the group consisting of phosphorus, boron and silicon.Type: GrantFiled: May 19, 1976Date of Patent: July 18, 1978Assignee: Goetzewerke Friedrich Goetze AGInventors: Horst Beyer, Ulrich Buran
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Patent number: 4095807Abstract: A slide ring seal for arrangement between relatively rotating machine components has a counter ring which at one end face is stationarily and sealingly attached to a machine component by means of a double-sided adhesive foil and at its other end face slidingly engages a slide ring.Type: GrantFiled: August 15, 1977Date of Patent: June 20, 1978Assignee: Goetzewerke Friedrich Goetze AGInventors: Siegfried Jandt, Gerhard Hammerschmidt
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Patent number: 4092158Abstract: A spray powder is provided for the manufacture of layers having a high resistance to wear and burn traces on the bearing surfaces of engine parts which are subject to friction. The spray powder consists essentially of a powder mixture of about 30 to about 80 weight percent iron, about 0.1 to about 60 weight percent of at least one Group VIB metal selected from the group consisting of molybdenum and tungsten, and about 4 to about 50 weight percent boron.Type: GrantFiled: November 28, 1975Date of Patent: May 30, 1978Assignee: Goetzewerke Friedrich Goetze AGInventors: Horst Beyer, Ulrich Buran
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Patent number: 4090720Abstract: An expander spring for supporting an oil scraper ring in a groove of a piston is constituted by a sheet metal ring having an axis and forming an annular channel of generally U-shaped cross section. The channel has two side walls, forming, respectively, a radially inner and a radially outer, axially oriented side of the expander spring. The channel further has a base interconnecting the side walls and an open side opposite the base. A plurality of circumferentially distributed slots are provided in the side walls for increasing the resiliency of the expander spring in the circumferential direction, and a plurality of axially projecting support feet are carried by the free end of the radially inner side of the expander spring for supporting at least one oil scraper ring.Type: GrantFiled: March 31, 1977Date of Patent: May 23, 1978Assignee: GOETZEWERKE Friedrich Goetze AGInventors: Martin Morsbach, Paul Johren, Jurgen Weiss
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Patent number: 4084826Abstract: A shaft seal ring has a resilient sealing lip provided with a contact face oriented at an inclined angle with respect to the seal ring axis. The contact face includes a sealing edge for circumferentially engaging the surface of a shaft on which the shaft seal ring is mounted. The contact face has a plurality of circumferentially disposed ribs oriented at alternatingly opposite inclination with respect to the sealing edge. Any adjoining, oppositely inclined two ribs meeting in a point of intersection on the sealing edge form first rib pairs. A second rib pair is provided in the area bounded by the one and the other rib of each first rib pair; the one and the other rib forming each second rib pair terminates on, and is oppositely inclined with respect to, the one and the other rib of the associated first rib pair.Type: GrantFiled: December 17, 1976Date of Patent: April 18, 1978Assignee: GOETZEWERKE Friedrich Goetze AGInventors: Paul Vossieck, Hans Deuring
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Patent number: 4071948Abstract: For distributing annular workpieces onto a plate provided with a plurality of bolts protruding from the plate surface, each to hold and arrest a correctly positioned workpiece, there is provided a magazine which accommodates a plurality of workpieces in contact with one another at their peripheral surfaces, the magazine being inclined at an angle with respect to the plate surface, being relatively displaceable in the direction of its inclination parallel to the plate surface, and being provided at its lower end with a resilient holding device for the individual release of one workpiece at a time.Type: GrantFiled: April 2, 1976Date of Patent: February 7, 1978Assignee: Goetzewerke Friedrich Goetze AGInventor: Klaus Deutzmann
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Patent number: 4011054Abstract: A sinterable material for use as sealing strips for rotary piston engines, the material being based on a known mixture of iron and vanadium carbide and further including a material which will be liquid at the sintering temperature and which will wet the carbide grains and partially dissolve them to give them a rounded form in the finished strip.Type: GrantFiled: September 9, 1976Date of Patent: March 8, 1977Assignee: Goetzewerke-Friedrich Goetze AGInventors: Horst Beyer, Ulrich Buran, Norbert Dautzenberg, Joseph Hewing
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Patent number: 3970322Abstract: A cylinder head gasket for internal combustion engines comprises at least one layer of a soft material having pores which are enriched with an impregnating agent and edges which are bordered by a casing. The pores of the soft material underneath the flange are kept free of impregnating agent.Type: GrantFiled: January 31, 1974Date of Patent: July 20, 1976Assignee: Goetzewerke-Friedrich Goetze AGInventors: Friedhelm Stecher, Josef Fazekas, Paul Johren, Martin Morsbach