Patents by Inventor Uwe Ratfisch

Uwe Ratfisch 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: 9506179
    Abstract: A modular system for drums of laundry care devices including at least one of washing machines and driers, the modular system including at least two similarly configured base bodies for securing to a respective drum, wherein the at least two similarly configured base bodies are configured for mounted receipt of at least two different functional parts, with the at least two different functional parts being interchangeable on a respective one of the at least two different base bodies.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: November 29, 2016
    Assignee: BSH Hausgeräte GmbH
    Inventors: Johannes Geyer, Uwe Ratfisch, Wilfried Wildung
  • Patent number: 8806904
    Abstract: 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: Grant
    Filed: January 11, 2007
    Date of Patent: August 19, 2014
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Axel Heubner, Alfred Nitsche, Uwe Ratfisch
  • Patent number: 8752404
    Abstract: A drum for a laundry treatment machine that is rotatably mounted within the housing of the laundry treatment machine, and wherein the drum includes a bottom disk and a jacket which are individually or jointly provided with a curved structure. The curved structure includes at least two rows of prism-type embossings that have substantially rectangular base, and the at least two rows encompass at least partially the drum. A surface of embossings that is directed in a circumferential direction of the drum is arranged at a steep angle to the jacket; an opposing surface of the embossings is arranged at a flat angle to the jacket; and lateral surfaces of the embossings are arranged at least nearly at a right angle to the jacket.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: June 17, 2014
    Assignee: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Christoph Oertel, Uwe Ratfisch, Stephan Sommer, Wilfried Wildung
  • Patent number: 8393185
    Abstract: Fastening plastic drivers in a washing machine drum having at least two domes on the inside, which comprise a cavity extending along its center line, and are oriented perpendicular to the sheet casing of the drum and which serve to fasten the driver. A hole pattern corresponding to the arrangement of the domes of a driver is punched into the sheet casing of the drum. The driver is placed with its dome ends, which project beyond the contact surface of the driver with the sheet casing, onto the sheet casing so that the dome ends pass through the holes of the hole pattern. Counter holders are inserted from the opposite side into the cavities of the domes. From the fastening side, hold-down elements are driven against the sheet casing. Heated form punches are driven against the dome ends until the dome ends have mushroom-shape ends.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: March 12, 2013
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventor: Uwe Ratfisch
  • Patent number: 8250690
    Abstract: A machine for laundry has a drum shaft rotatably mounted by a bearing for driving a laundry drum and having a device for determining loading-relevant characteristic variables or an unbalance of the laundry drum or of the drum shaft. The device for determining loading-relevant characteristic variables or an unbalance includes a magnetic field sensor that senses a magnetized region on the drum shaft or the laundry drum.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: August 28, 2012
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Rainer Jurmann, Harald Moschütz, Uwe Ratfisch, Mark Sauer, Horst Wiemer
  • Patent number: 8181355
    Abstract: A laundry drum for a laundry treatment machine mounted within a housing for rotation about a non-vertical axis, the laundry drum including a drum casing having a plurality of stamped recesses formed therein in a manner such that at least one sectional plane of the laundry drum lying at right angles to the axis of rotation has an at least approximately circular shape, the laundry drum including a drum casing having the curved stamped recesses formed therein in a manner wherein in the alignment of a surface contour lying in the drum casing is formed a surface having a plurality of arcuate edges which merge continuously into one another with a single axis of symmetry extending at least approximately in the circumferential direction of the drum casing.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: May 22, 2012
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Johannes Geyer, Uwe Ratfisch, Stephan Sommer, Wilfried Wildung
  • Publication number: 20120118025
    Abstract: Fastening plastic drivers in a washing machine drum having at least two domes on the inside, which comprise a cavity extending along its center line, and are oriented perpendicular to the sheet casing of the drum and which serve to fasten the driver. A hole pattern corresponding to the arrangement of the domes of a driver is punched into the sheet casing of the drum. The driver is placed with its dome ends, which project beyond the contact surface of the driver with the sheet casing, onto the sheet casing so that the dome ends pass through the holes of the hole pattern. Counter holders are inserted from the opposite side into the cavities of the domes. From the fastening side, hold-down elements are driven against the sheet casing. Heated form punches are driven against the dome ends until the dome ends have mushroom-shape ends.
    Type: Application
    Filed: January 27, 2012
    Publication date: May 17, 2012
    Applicant: BSH BOSCH UND SIEMENS HAUSGERATE GMBH
    Inventor: Uwe Ratfisch
  • Patent number: 8161621
    Abstract: Fastening plastic drivers in a washing machine drum having at least two domes on the inside, which comprise a cavity extending along its center line, and are oriented perpendicular to the sheet casing of the drum and which serve to fasten the driver. A hole pattern corresponding to the arrangement of the domes of a driver is punched into the sheet casing of the drum. The driver is placed with its dome ends, which project beyond the contact surface of the driver with the sheet casing, onto the sheet casing so that the dome ends pass through the holes of the hole pattern. Counter holders are inserted from the opposite side into the cavities of the domes. From the fastening side, hold-down elements are driven against the sheet casing. Heated form punches are driven against the dome ends until the dome ends have mushroom-shape ends.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: April 24, 2012
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventor: Uwe Ratfisch
  • Publication number: 20110088276
    Abstract: A laundry drum for a laundry treatment machine mounted within a housing for rotation about a non-vertical axis, the laundry drum including a drum casing having a plurality of stamped recesses formed therein in a manner such that at least one sectional plane of the laundry drum lying at right angles to the axis of rotation has an at least approximately circular shape, the laundry drum including a drum casing having the curved stamped recesses formed therein in a manner wherein in the alignment of a surface contour lying in the drum casing is formed a surface having a plurality of arcuate edges which merge continuously into one another with a single axis of symmetry extending at least approximately in the circumferential direction of the drum casing.
    Type: Application
    Filed: December 5, 2006
    Publication date: April 21, 2011
    Applicant: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Johannes Geyer, Uwe Ratfisch, Stephan Sommer, Wilfried Wildung
  • Publication number: 20110048080
    Abstract: A drum for a laundry treatment machine that is rotatably mounted within the housing of the laundry treatement machine, and wherein the drum includes a bottom disk and a jacket which are individually or jointly provided with a curved structure. The curved structure includes at least two rows of prism-type embossings that have substantially rectangular base, and the at least two rows encompass at least partially the drum. A surface of embossings that is directed in a circumferential direction of the drum is arranged at a steep angle to the jacket; an opposing surface of the embossings is arranged at a flat angle to the jacket; and lateral surfaces of the embossings are arranged at least nearly at a right angle to the jacket.
    Type: Application
    Filed: January 2, 2009
    Publication date: March 3, 2011
    Applicant: BSH BOSCH UND SIEMENS HAUSGERÄTE GMBH
    Inventors: Christoph Oertel, Uwe Ratfisch, Stephan Sommer, Wilfried Wildung
  • Publication number: 20100251778
    Abstract: A machine for laundry has a drum shaft rotatably mounted by a bearing for driving a laundry drum and having a device for determining loading-relevant characteristic variables or an unbalance of the laundry drum or of the drum shaft. The device for determining loading-relevant characteristic variables or an unbalance includes a magnetic field sensor that senses a magnetized region on the drum shaft or the laundry drum.
    Type: Application
    Filed: April 13, 2006
    Publication date: October 7, 2010
    Applicant: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Rainer Jurmann, Harald Moschütz, Uwe Ratfisch, Mark Sauer, Horst Wiemer
  • Publication number: 20100223963
    Abstract: 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: Application
    Filed: January 11, 2007
    Publication date: September 9, 2010
    Applicant: BSH Bosch und Siemens Hausgeäte GmbH
    Inventors: Axel Heubner, Alfred Nitsche, Uwe Ratfisch
  • Publication number: 20090308109
    Abstract: A modular system for drums of laundry care devices including at least one of washing machines and driers, the modular system including at least two similarly configured base bodies for securing to a respective drum, wherein the at least two similarly configured base bodies are configured for mounted receipt of at least two different functional parts, with the at least two different functional parts being interchangeable on a respective one of the at least two different base bodies.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 17, 2009
    Applicant: BSH Bosch und Siemens Hausgeräte GmbH
    Inventors: Johannes Geyer, Uwe Ratfisch, Wilfried Wildung
  • Publication number: 20090276966
    Abstract: A washing machine includes a horizontally rotatable drum having a drum shell. Hollow agitators are disposed on the inside of the drum and have a base as part of the drum shell and at least one inlet opening to allow lye into the hollow space. Outlet openings are located on a top region of each agitator for allowing lye to pour out upon rotation to an elevated position. A fixed barrier located in the hollow space of each agitator serves to divide the space to define a chamber such that upon rotation from a lowest position, the chamber fills with lye, and upon further rotation the lye flows out of the outlet openings.
    Type: Application
    Filed: June 21, 2006
    Publication date: November 12, 2009
    Applicant: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Uwe Mette, Uwe Ratfisch, Wilfried Wildung
  • Publication number: 20080178635
    Abstract: A mounting star stabilizing and rotationally mounting a washing drum of a washing machine. The mounting star comprises at least three arms near the center of the mounting star and a hollow molded body with a box-like open profile. Support points support the mounting star against the rear wall of the washing drum and are arranged at a distance from approximately the mid-length of each arm. The open profile of the arm is made of a pair of surfaces which are non-connected between themselves and are at least similar to a flat rectangle which forms the transversal section of the supports and the short sides thereof are oriented towards the rear wall of the washing drum. Both of the supports are connected by means of a third support of the identical transversal surface from arm to arm, with a support of the other arm.
    Type: Application
    Filed: September 30, 2005
    Publication date: July 31, 2008
    Applicant: BSH BOSCH UND SIEMENS HAUSGERÄTE GMBH
    Inventor: Uwe Ratfisch
  • Publication number: 20070289116
    Abstract: Fastening plastic drivers in a washing machine drum having at least two domes on the inside, which comprise a cavity extending along its center line, and are oriented perpendicular to the sheet casing of the drum and which serve to fasten the driver. A hole pattern corresponding to the arrangement of the domes of a driver is punched into the sheet casing of the drum. The driver is placed with its dome ends, which project beyond the contact surface of the driver with the sheet casing, onto the sheet casing so that the dome ends pass through the holes of the hole pattern. Counter holders are inserted from the opposite side into the cavities of the domes. From the fastening side, hold-down elements are driven against the sheet casing. Heated form punches are driven against the dome ends until the dome ends have mushroom-shape ends.
    Type: Application
    Filed: September 6, 2005
    Publication date: December 20, 2007
    Applicant: BSH Bosch und Siemens Hausgerate GmbH
    Inventor: Uwe Ratfisch
  • Patent number: 7287402
    Abstract: Paddles are fastened on an inside of a drum casing by fastening elements. The paddles contain a hollow body, which is open in the direction of the drum casing and has a cross-sectional surface area similar to a triangle, and stiffening structures on the insides of its flanks. For secure and permanently stable fastening, in the region of at least some of the structures, strip-shaped installation parts are connected in a form-fitting manner, by way of a section located essentially parallel to the surface of the drum casing, to the inside of the flanks. Moreover, the sections have at least two fastening elements by which the paddle is fastened on the drum casing.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: October 30, 2007
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventor: Uwe Ratfisch
  • Patent number: D588315
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: March 10, 2009
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Johannes Geyer, Jacques Helot, Uwe Ratfisch, Carsten Weber, Wilfried Wildung
  • Patent number: D600417
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: September 15, 2009
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Johannes Geyer, Jacques Helot, Uwe Ratfisch, Carsten Weber, Wilfried Wildung
  • Patent number: D604465
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: November 17, 2009
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Johannes Geyer, Jacques Helot, Uwe Ratfisch, Carsten Weber, Wilfried Wildung