Patents by Inventor Alfred Nitsche
Alfred Nitsche 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: 8806904Abstract: The laundry drum is configured for removing water from wet laundry at a high rotational speed and has a circulating drum cover which is bent from a thin-walled material strip to form a cylinder or flat truncated cone wherein the parallel end edges of the material strip make contact in a connecting seam, with an assembly for connecting the end sections including a first tab formed at a first end section and continuing over the general curvature of the drum cover, a second tab formed at a second end section wherein the second tab is at least one of outwardly creased about the wall thickness of the material strip and inwardly creased about the wall thickness of the material strip wherein the tabs of the end sections are fixedly connected to one another and the overlapping tabs on the inside of the drum cover are covered.Type: GrantFiled: January 11, 2007Date of Patent: August 19, 2014Assignee: BSH Bosch und Siemens Hausgeraete GmbHInventors: Axel Heubner, Alfred Nitsche, Uwe Ratfisch
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Patent number: 8011210Abstract: The invention relates to washing drum shell formed by a final sheet metal strip which is coiled in the form of a cylinder and whose ends are welded to one another. The longitudinal sides thereof are connected to a bottom disk by a high-flange joint provided with transversal embossments. The high flange joint is sufficiently stable even when the carriers of the washing drum are drawn into the shell. The drawn-in carriers are connected by at least one fold to openings shaped in at least one bottom disk and the transversal embossments of the high flange joint are shaped in an area which is arranged directly near a connection between the drawn-in carriers and the bottom disk.Type: GrantFiled: February 22, 2006Date of Patent: September 6, 2011Assignee: BSH Bosch und Siemens Hausgeraete GmbHInventors: Axel Heubner, Alfred Nitsche, Wilfried Wildung
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Publication number: 20100223963Abstract: The laundry drum is configured for removing water from wet laundry at a high rotational speed and has a circulating drum cover which is bent from a thin-walled material strip to form a cylinder or flat truncated cone wherein the parallel end edges of the material strip make contact in a connecting seam, with an assembly for connecting the end sections including a first tab formed at a first end section and continuing over the general curvature of the drum cover, a second tab formed at a second end section wherein the second tab is at least one of outwardly creased about the wall thickness of the material strip and inwardly creased about the wall thickness of the material strip wherein the tabs of the end sections are fixedly connected to one another and the overlapping tabs on the inside of the drum cover are covered.Type: ApplicationFiled: January 11, 2007Publication date: September 9, 2010Applicant: BSH Bosch und Siemens Hausgeäte GmbHInventors: Axel Heubner, Alfred Nitsche, Uwe Ratfisch
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Publication number: 20090211313Abstract: The invention relates to a water-circulating household appliance that may be, for example a washing machine, washer-drier, or clothes drier. The household appliance includes a rotatably mounted washing drum with a drum casing and a drum cover face. The washing drum is embossed with protrusions in the form of embossments whose edges are ellipsoidal.Type: ApplicationFiled: April 13, 2006Publication date: August 27, 2009Applicant: BSH Bosch und Siemens Hausgerate GmbHInventors: Marcus Exler, Johannes Geyer, Reinhard Heyder, Alfred Nitsche, Patrick Schüler, Stephan Sommer, Wilfried Wildung
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Publication number: 20090183531Abstract: The invention relates to washing drum shell formed by a final sheet metal strip which is coiled in the form of a cylinder and whose ends are welded to one another. The longitudinal sides thereof are connected to a bottom disc by a high-flange joint provided with transversal embossments. The high flange joint is sufficiently stable even when the carriers of the washing drum are drawn into the shell. The drawn-in carriers are connected by at least one fold to openings shaped in at least one bottom disc and the transversal embossments of the high flange joint are shaped in an area which is arranged directly near a connection between the drawn-in carriers and the bottom disc.Type: ApplicationFiled: February 22, 2006Publication date: July 23, 2009Applicant: BSH Bosch und Siemens Hausgeräte GmbHInventors: Axel Heubner, Alfred Nitsche, Wilfried Wildung
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Patent number: 6935143Abstract: A laundry drum is configured for high-speed spinning of damp linen. The drum has a rotating drum shell, which is curved from a thin-walled material strip to form a cylinder. The parallel end edges of the material strip contact to form a joint line. So that the drum may resist drum speeds higher than 1500 rpm, the end edges have a slot-shaped teething. The teeth and of the teething engage into the respective tooth gaps of the opposite end edge, so that the base lines of the tooth gaps meet to form an at least approximately straight line. The teeth are fitted into the non-toothed zone of the end edge outside of the drum above the material strip, each tooth being firmly secured to the respective non-toothed zone.Type: GrantFiled: June 21, 2004Date of Patent: August 30, 2005Assignee: BSH Bosch und Siemens Hausgeräte GmbHInventor: Alfred Nitsche
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Publication number: 20050005654Abstract: A laundry drum is configured for high-speed spinning of damp linen. The drum has a rotating drum shell, which is curved from a thin-walled material strip to form a cylinder. The parallel end edges of the material strip contact to form a joint line. So that the drum may resist drum speeds higher than 1500 rpm, the end edges have a slot-shaped teething. The teeth and of the teething engage into the respective tooth gaps of the opposite end edge, so that the base lines of the tooth gaps meet to form an at least approximately straight line. The teeth are fitted into the non-toothed zone of the end edge outside of the drum above the material strip, each tooth being firmly secured to the respective non-toothed zone.Type: ApplicationFiled: June 21, 2004Publication date: January 13, 2005Inventor: Alfred Nitsche
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Patent number: 5934110Abstract: A laundry drum for a washing machine includes sheet-metal wall portions and outer portions outside the sheet-metal wall portions. The sheet-metal wall portions have holes formed therein for the passage of treatment media, such as water or air and regions surrounding the holes toward the outer portions. The regions surrounding the holes are elongated into a tuliplike or frustoconical shape and have flat-formed edges bordering the holes to assure that a burr at margins of the holes remains as harmless as possible for gentle handling of delicate laundry. A tool for producing the laundry drum has a needle for cutting the holes, a stiffening piece for bracing the sheet-metal wall portion from below, and a female stamping die guiding the needle and having an offset end surface with a diameter less than the outer diameter of the surrounding regions of the sheet-metal wall portion.Type: GrantFiled: December 10, 1997Date of Patent: August 10, 1999Assignee: BSH Bosch und Siemens Hausgeraete GmbHInventor: Alfred Nitsche