Patents by Inventor Klaus Schwerdtfeger
Klaus Schwerdtfeger 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).
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Patent number: 9194612Abstract: A stand for supporting solar panels on a flat roof is disclosed. The stand has a foot part, which has a base plate for support on the flat roof, and a head part, which has a support area for solar panels, wherein the head part and the foot part are two separate parts. The foot part has integral lock bars and the head part has integral lock bars. The lock bars connect the head part and the foot part to one another in a form-fitting manner.Type: GrantFiled: June 6, 2014Date of Patent: November 24, 2015Assignee: Hilti AktiengesellschaftInventors: Elio Bragagna, Berndt Trebo, Klaus Schwerdtfeger, Gerald Schreiber
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Publication number: 20140366465Abstract: A stand for supporting solar panels on a flat roof is disclosed. The stand has a foot part, which has a base plate for support on the flat roof, and a head part, which has a support area for solar panels, wherein the head part and the foot part are two separate parts. The foot part has integral lock bars and the head part has integral lock bars. The lock bars connect the head part and the foot part to one another in a form-fitting manner.Type: ApplicationFiled: June 6, 2014Publication date: December 18, 2014Applicant: Hilti AktiengesellschaftInventors: Elio BRAGAGNA, Berndt Trebo, Klaus Schwerdtfeger, Gerald Schreiber
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Patent number: 6585032Abstract: A strip casting plant with side limits arranged closely adjacent to a carrying belt. The side limits, and preferably the supply device for molten metal, are capable of vibrating and are connected to a device for producing vibrations. The adhesion of solidified material can thus be prevented.Type: GrantFiled: November 5, 2001Date of Patent: July 1, 2003Assignee: Mannesmann AGInventors: Klaus Schwerdtfeger, Karl-Heinz Spitzer, Paul Freier, Thomas Von Hinrichs, Wolfgang Reichelt, Ulrich Urlau, Ewald Feuerstacke, Joachim Kroos, Michael Brühl
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Publication number: 20020079084Abstract: A strip casting plant with side limits arranged closely adjacent to a carrying belt. The side limits, and preferably the supply device for molten metal, are capable of vibrating and are connected to a device for producing vibrations. The adhesion of solidified material can thus be prevented.Type: ApplicationFiled: November 5, 2001Publication date: June 27, 2002Applicant: Mannesmann AGInventors: Klaus Schwerdtfeger, Karl-Heinz Spitzer, Paul Freier, Thomas Von Hinrichs, Wolfgang Reichelt, Ulrich Urlau, Ewald Feruerstacke, Joachim Kroos, Michael Bruhl
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Publication number: 20010047856Abstract: The invention relates to a strip casting plant with side limits arranged closely adjacent to a carrying belt. The side limits, and preferably the supply device for molten metal, are capable of vibrating and are connected to a device for producing vibrations. The adhesion of solidified material can thus be prevented.Type: ApplicationFiled: August 2, 1999Publication date: December 6, 2001Inventors: KLAUS SCHWERDTFEGER, KARL-HEINZ SPITZER, PAUL FREIER, THOMAS VON HINRICHS, WOLFGANG REICHELT, ULRICH URLAU, EWALD FEUERSTACKE, JOACHIM KROOS, MICHAEL BRUHL
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Patent number: 6206083Abstract: A strip casting plant with a circulating belt. In the cooling area, the belt is sucked against carriers by a negative pressure in the cooler. The carriers are arranged so that, with given mechanical properties of the circulating belt, a deflection that compensates for the thermal elongation takes place between the supporting surfaces of the carriers.Type: GrantFiled: January 26, 1999Date of Patent: March 27, 2001Assignee: Mannesmann AGInventors: Klaus Schwerdtfeger, Karl-Heinz Spitzer, Wolfgang Reichelt, Ulrich Urlau, Joachim Kroos, Heino Buddenberg
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Patent number: 6192973Abstract: The cast steel strip must be supported, particularly after the casting device, to reduce stresses and mechanical deformations. A flexible support element, in particular, a chain with rolls, whose length can be changed by suitable adjustment devices, is arranged for the purpose of support after the casting device.Type: GrantFiled: March 4, 1999Date of Patent: February 27, 2001Assignee: Mannesmann AGInventors: Klaus Schwerdtfeger, Karl-Heinz Spitzer, Ulrich Urlau, Dietmar Franke, Bernfried Stache, Joachim Kroos, Heino Buddenberg
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Patent number: 6123186Abstract: A supporting arrangement for the transport belt in thin strip casting plants. The liquid steel is cast onto the circulating transport belt. On its underside, the transport belt has devices for generating a negative pressure and for supporting the belt as well as for cooling. In the past, rollers were used for supporting the belt. Between the supporting points of the belt on the rollers, upward curvatures of the belt may occur. This is avoided by the use of supports of which the spacings measured transversely to the transporting direction are greater than the lengths of the supports in this direction.Type: GrantFiled: February 17, 1999Date of Patent: September 26, 2000Assignee: Mannesmann AGInventors: Klaus Schwerdtfeger, Karl-Heinz Spitzer, Wolfgang Reichelt, Ulrich Urlau, Ewald Feuerstacke, Joachim Kroos
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Patent number: 6112954Abstract: A nozzle for thin strip casting plants, especially for steel strip. In casting plants of this type, the liquid steel must be applied on a carrier from the nozzle forming a casting gap. At least one primary coil and a secondary coil are arranged at the nozzle, wherein the secondary coil is water-cooled and projects into the area of the casting gap.Type: GrantFiled: December 4, 1998Date of Patent: September 5, 2000Assignee: Mannesmann AGInventors: Klaus Schwerdtfeger, Karl-Heinz Spitzer, Wolfgang Reichelt, Ulrich Urlau, Joachim Kroos, Michael Bruhl
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Patent number: 4836271Abstract: In a process for casting metal strip, in particular steel strip, the liquid metal is discharged from a casting nozzle which has the same width as the strip onto a continuously moving, cooled conveyor belt, and the plane of the nozzle mouth is set for the thickness of the metal strip to be cast, i.e. at an acute angle to the plane of the conveyor belt. To maintain the casting speed at the nozzle mouth on the conveyor belt, i.e. to prevent shearing forces of the flow layers and thus a speed profile with negative components, the invention proposes that with a conveyor belt running at an inclination to the horizontal in the casting direction, the inclination of the conveyor belt in the casting direction is set as a function of the casting speed, which should be equal to the conveyor belt speed, and as a function of the material parameters of the liquid metal.Type: GrantFiled: March 11, 1988Date of Patent: June 6, 1989Assignee: Mannesmann AktiengesellschaftInventors: Wolfgang Reichelt, Matthias Scheulen, Klaus Schwerdtfeger, Peter Voss-Spilker, Ewald Feuerstacke
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Patent number: 4721152Abstract: An apparatus for continuously casting metal for obtaining a substantially flat casting includes a vessel having a bottom opening defined by side walls and by a rear wall and a tiltable front wall, the rear and front walls ending at different levels so that the bottom opening has a horizontal as well as a vertical component; a planar metal, endless belt is disposed underneath the opening and defines a casting gap together with the front wall, the more downwardly extending rear wall in conjunction with that casting gap deflects casting material from a down flow directly into the horizontal; a meniscus seals the rear wall against the belt; the belt is spray cooled from below.Type: GrantFiled: November 7, 1986Date of Patent: January 26, 1988Assignee: Mannesmann AGInventors: Wolfgang Reichelt, Klaus Schwerdtfeger, Peter Voss-Spilker