Patents by Inventor Wolfgang Proppe

Wolfgang Proppe 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).

  • Publication number: 20100180643
    Abstract: A device for pumping out lye 5 for a washing machine 4 having a washing drum 6, a lye pump 24 and a return flow container 30 arranged in the course of the pumping-out device for filling the drain area in the lye container 2 is to be presented in a cost-effective and easy-to assemble manner. To this end, a lower pumping-out connecting element 25, the return flow tank 30 and an upper pumping-out connecting element 26 is designed in one piece as an at least partially flexible tube 17, which is guided at least partially through a tube holding device 1.
    Type: Application
    Filed: June 15, 2007
    Publication date: July 22, 2010
    Applicant: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Edwin Bolduan, Necdet Patel, Wolfgang Proppe, Raymond Römer, Horst Wiemer
  • Patent number: 7481005
    Abstract: Examples of dehumidifying processes for clothes include spinning, extracting the moisture by pressure, or drying the clothes using heat and air. To dehumidify the clothes gently and economically in terms of energy consumption, a method and apparatus for dehumidifying clothes includes bringing the clothes into contact with at least one absorption body of an absorbent material. Advantageously, a rotating absorbent body is used, its sections being continuously alternately brought into contact with an item of clothing and dehumidified by pressing.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: January 27, 2009
    Assignee: BSH Bosch und Siemens Haugeraete GmbH
    Inventors: Edwin Bolduan, Wolfgang Proppe
  • Patent number: 7305856
    Abstract: A cupboard-like washing machine includes a conveyer belt for moving the item to be washed in a cycle during a drying process. The dryer can be embodied as an air circulation dryer or an air evacuation dryer. Moving the item to be washed using the conveyer belt reduced the drying time. A rinsing container that is disposed in the rear wall of the housing is used as a heat exchanger.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: December 11, 2007
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Edwin Bolduan, Wolfgang Proppe
  • Patent number: 7089768
    Abstract: A cabinet-shaped washing machine includes a conveyor belt to move laundry goods in circulation, with the laundry goods passing through various successive steps of the laundry cycle. Following the actual washing process, a downstream pre-dehumidification as well as a drying and pressing phase can be realized in the same housing.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: August 15, 2006
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Edwin Bolduan, Wolfgang Proppe
  • Patent number: 7020983
    Abstract: Instead of desiccating articles of clothing by spinning the articles, the method and apparatus according to the invention removes moisture from these articles by pressing or drying them with the aid of hot air. Desiccation of the clothing articles occurs gently and with a low expenditure of energy by subjecting the articles to the action of at least one gas jet and, in particular, of a compressed air jet, which is not aligned parallel to the surface of the article of clothing to exert a force upon the article. Advantageously, the article of clothing is subjected to the action of gas jets on both sides.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: April 4, 2006
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Edwin Bolduan, Wolfgang Proppe
  • Patent number: 6925737
    Abstract: To improve a smoothing effect on items of clothing by subjecting the items to moisture and heat and, thereby, relaxing the fabric of the clothing items to reduce creases, an apparatus and a method of smoothing includes subjecting the items of clothing, preferably, in a heated and moistened state, to at least one gas jet, in particular, a compressed air jet, which is not aligned parallel to the clothing item and which exerts a force on the clothing item. Advantageously, the clothing item is subjected to gas jets from both sides.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: August 9, 2005
    Assignee: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Edwin Bolduan, Wolfgang Proppe
  • Patent number: 6862903
    Abstract: A sealing device is provided between a bullseye-shaped porthole of a loading door and a housing wall in washing machines or laundry dryers and includes a one-piece, substantially annular sealing collar. The porthole has an edge section, which extends substantially parallel to the plane of the loading door. The sealing device includes, at its end facing the porthole, a head section that is supported by a projection on an edge section of the housing wall limiting the door aperture. Furthermore, the sealing device includes a narrow, substantially annular sealing disk that, with the loading door closed, presses sealingly in the axial direction against the edge section of the porthole.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: March 8, 2005
    Assignee: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Kai Nitschmann, Wolfgang Proppe
  • Patent number: 6761049
    Abstract: A sealing sleeve seals joints in household appliances, especially the joints between the suds container and the front wall of the housing or the upper part of the suds container and the top frame in washing machines, and can be secured to the appliance by a substantially annular clamping element. The clamping element can be molded into the interior of the section (which can be a beading) of the sealing sleeve to be secured.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: July 13, 2004
    Assignee: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Kai Nitschmann, Wolfgang Proppe
  • Publication number: 20040112095
    Abstract: A washing machine includes therein supports fixing the laundry therein, for example, hanger-like supports, clamping and/or tensioning configurations, or steaming dummies. Once washing has been completed, the laundry is subjected to steam pressure from the inside through the support. The laundry is, thus, pressed and/or ironed.
    Type: Application
    Filed: June 27, 2003
    Publication date: June 17, 2004
    Inventors: Edwin Bolduan, Wolfgang Proppe
  • Patent number: 6748771
    Abstract: A porthole window includes a circular base section being a viewing glass having a substantially planar inner surface and a border region, and a rigid plastic side-wall section of the bowl tapering in a direction of the base section. The viewing glass, over an entire border region of the base section, is curved in a direction of the side-wall section such that the border region of the base section forms a rounded glass shoulder. On the outer border of the glass shoulder, the viewing glass has an annular connecting section running obliquely in relation to the inner surface of the base section and, at its head end, firmly engages with the inner end of the side-wall section.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: June 15, 2004
    Assignee: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Kai Nitschmann, Wolfgang Proppe
  • Publication number: 20040055186
    Abstract: To improve a smoothing effect on items of clothing by subjecting the items to moisture and heat and, thereby, relaxing the fabric of the clothing items to reduce creases, an apparatus and a method of smoothing includes subjecting the items of clothing, preferably, in a heated and moistened state, to at least one gas jet, in particular, a compressed air jet, which is not aligned parallel to the clothing item and which exerts a force on the clothing item. Advantageously, the clothing item is subjected to gas jets from both sides.
    Type: Application
    Filed: June 27, 2003
    Publication date: March 25, 2004
    Inventors: Edwin Bolduan, Wolfgang Proppe
  • Publication number: 20040000174
    Abstract: A cupboard-like washing machine includes a conveyer belt for moving the item to be washed in a cycle during a drying process. The dryer can be embodied as an air circulation dryer or an air evacuation dryer. Moving the item to be washed using the conveyer belt reduced the drying time. A rinsing container that is disposed in the rear wall of the housing is used as a heat exchanger.
    Type: Application
    Filed: June 27, 2003
    Publication date: January 1, 2004
    Inventors: Edwin Bolduan, Wolfgang Proppe
  • Publication number: 20040000175
    Abstract: A cabinet-shaped washing machine includes a conveyor belt to move laundry goods in circulation, with the laundry goods passing through various successive steps of the laundry cycle. Following the actual washing process, a downstream pre-dehumidification as well as a drying and pressing phase can be realized in the same housing.
    Type: Application
    Filed: June 27, 2003
    Publication date: January 1, 2004
    Inventors: Edwin Bolduan, Wolfgang Proppe
  • Publication number: 20040000068
    Abstract: Instead of desiccating articles of clothing by spinning the articles, the method and apparatus according to the invention removes moisture from these articles by pressing or drying them with the aid of hot air. Desiccation of the clothing articles occurs gently and with a low expenditure of energy by subjecting the articles to the action of at least one gas jet and, in particular, of a compressed air jet, which is not aligned parallel to the surface of the article of clothing to exert a force upon the article. Advantageously, the article of clothing is subjected to the action of gas jets on both sides.
    Type: Application
    Filed: June 27, 2003
    Publication date: January 1, 2004
    Inventors: Edwin Bolduan, Wolfgang Proppe
  • Publication number: 20030233766
    Abstract: Examples of dehumidifying processes for clothes include spinning, extracting the moisture by pressure, or drying the clothes using heat and air. To dehumidify the clothes gently and economically in terms of energy consumption, a method and apparatus for dehumidifying clothes includes bringing the clothes into contact with at least one absorption body of an absorbent material. Advantageously, a rotating absorbent body is used, its sections being continuously alternately brought into contact with an item of clothing and dehumidified by pressing.
    Type: Application
    Filed: June 27, 2003
    Publication date: December 25, 2003
    Inventors: Edwin Bolduan, Wolfgang Proppe
  • Publication number: 20030115915
    Abstract: A sealing device is provided between a bullseye-shaped porthole of a loading door and a housing wall in washing machines or laundry dryers and includes a one-piece, substantially annular sealing collar. The porthole has an edge section, which extends substantially parallel to the plane of the loading door. The sealing device includes, at its end facing the porthole, a head section that is supported by a projection on an edge section of the housing wall limiting the door aperture. Furthermore, the sealing device includes a narrow, substantially annular sealing disk that, with the loading door closed, presses sealingly in the axial direction against the edge section of the porthole.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 26, 2003
    Inventors: Kai Nitschmann, Wolfgang Proppe
  • Publication number: 20030110817
    Abstract: A sealing sleeve seals joints in household appliances, especially the joints between the suds container and the front wall of the housing or the upper part of the suds container and the top frame in washing machines, and can be secured to the appliance by a substantially annular clamping element. The clamping element can be molded into the interior of the section (which can be a beading) of the sealing sleeve to be secured.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 19, 2003
    Inventors: Kai Nitschmann, Wolfgang Proppe
  • Publication number: 20030110813
    Abstract: A porthole window includes a circular base section being a viewing glass having a substantially planar inner surface and a border region, and a rigid plastic side-wall section of the bowl tapering in a direction of the base section. The viewing glass, over an entire border region of the base section, is curved in a direction of the side-wall section such that the border region of the base section forms a rounded glass shoulder. On the outer border of the glass shoulder, the viewing glass has an annular connecting section running obliquely in relation to the inner surface of the base section and, at its head end, firmly engages with the inner end of the side-wall section.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 19, 2003
    Inventors: Kai Nitschmann, Wolfgang Proppe
  • Patent number: 5884506
    Abstract: A washing machine includes a detergent dispenser having at least one fresh-water connection, a free air course disposed downstream of the at least one fresh-water connection, and a detergent chamber. A water guide conduit supplies fresh water to the detergent chamber. A fresh-water diversion line is connected to the water guide conduit downstream of the free air course.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: March 23, 1999
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Peter Blauert, Horst Schermuck, Wolfgang Proppe, Andreas Stolze
  • Patent number: 5881578
    Abstract: The fluid line between a drain opening at the bottom of the tub and an opening located at a higher level in the tub includes a line segment, which serves solely to keep the washwater in the tub in circulation between the upper opening and the drain opening. The line also has a solid pipe segment with a transparent region, at the wall of which a sensor is mounted that responds to the turbidity of the washwater. The sensor has an optical transmitter and an optical receiver. The sensor elements are built into a forked housing so as to securely mount and protect the sensor from the severe shaking during spin cycles. The forked housing embraces the pipe segment and the housing is adapted to the outer shape of the pipe segment at the faces which are in contact with the transparent region.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: March 16, 1999
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Wolfgang Proppe, Christian Engel, Andreas Stolze, Carsten Stelzer, Gundula Czyzewski