Patents by Inventor Matthias Hahn

Matthias Hahn 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: 20110296722
    Abstract: Piezoelectric pump for a household electric appliance having a moving wall interposed between a first casing element defining a pumping chamber with the moving wall, and a second casing element applying pressure to the periphery of the moving wall in order to hold the latter in position. The moving wall has an exterior face in contact with a piezoelectric actuator designed to cause the moving wall to move so as to bring about a periodic variation in the volume of the pumping chamber under the action of the piezoelectric actuator wherein the first casing element and the second casing element are held together under stress by an elastic clip, the elastic clip applying a pressure that tends to compress the first casing element onto the second casing element.
    Type: Application
    Filed: November 30, 2009
    Publication date: December 8, 2011
    Applicant: ROWENTA WERKE GMBH
    Inventors: Andrea Lukas, Björn Scheve, Matthias Hahn
  • Publication number: 20110296723
    Abstract: Provided is an ironing appliance, including a pump that has a pumping chamber provided with an inlet and an outlet, the pumping chamber including a movable wall having an outer surface contacting a piezoelectric actuator provided to move the movable wall while changing the volume of the pumping chamber by the piezoelectric actuator, wherein the pump is placed in the ironing appliance such that the outlet of the pumping chamber is located at a higher level than the inlet in a normal position for operating the appliance.
    Type: Application
    Filed: November 30, 2009
    Publication date: December 8, 2011
    Applicant: ROWENTA WERKE GMBH
    Inventors: Andrea Lukas, Björn Scheve, Matthias Hahn, Franck Mandica, Dominique Gelus
  • Publication number: 20110107546
    Abstract: Electrical household appliance comprising a base (1) for the generation of steam, having a liquid tank (6) mounted removably on a receiving socket (10) and having a steam generator located outside of said tank (6), the steam generator being supplied by gravity by a supply line from the tank (6) and having a steam outlet through which the steam can escape towards a work tool, such as a crease-removing brush, said supply line comprising an inlet orifice located on the receiving socket (10), and said tank (6) comprising a closed enclosure (61) having only one outlet orifice (52) which connects the said inlet orifice when the tank is placed on the receiving socket (10), which appliance is characterized in that said tank (6) connects leaktightly onto said receiving socket (10) and in that said appliance has a vent line admitting air to the outlet orifice (52) of the tank, said vent line having one end connected to the exterior which is higher than the outlet orifice (52) of the tank.
    Type: Application
    Filed: March 16, 2009
    Publication date: May 12, 2011
    Inventors: Dierk Spatz, Martin Krebs, Matthias Hahn
  • Publication number: 20100299974
    Abstract: Appliance for the treatment of fabric articles comprising a water tank, a steam generator for diffusing steam in the direction of the fabric article and a water supply circuit of the steam generator comprising an electric pump, characterized in that said supply circuit comprises a flexible tube (12) and a device (13) for adjusting the flow of water sent to the steam generator comprising means (133) for compressing the flexible tube (12) so as to modify its cross-section of flow.
    Type: Application
    Filed: April 21, 2008
    Publication date: December 2, 2010
    Applicant: ROWENTA WERKE GMBH
    Inventors: Björn Scheve, Matthias Hahn
  • Patent number: 7786190
    Abstract: The present invention relates to a method for the production of pulverulent high-molecular water-soluble polymers for application in solid/liquid separation processes. The invention relates in particular to a method for modifying and drying inverse polymer dispersions with the help of kneading technology while recovering the solvents used.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: August 31, 2010
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Matthias Hahn, Antje Lieske
  • Publication number: 20100212490
    Abstract: Control apparatus for a piston/cylinder arrangement, wherein the piston/cylinder arrangement has a cylinder and a piston which is accommodated at least partially in the cylinder and divides the cylinder interior along the cylinder axis into two part spaces, having a valve arrangement which is connected to a first part space and assumes a closed position which prevents a fluid which is held in the first part space from flowing out of this part space if the pressure in the fluid is smaller than a pressure control value which is set on the valve arrangement, and which opens into an opening position which makes this outflow possible if the pressure in the fluid is correspondingly greater than the pressure control value which has been set, having a priming device which is coupled to the valve arrangement and the first part space, serves to prepare for the damping of a pressure increase in the fluid which is brought about by a movement of the piston which is caused by a load which acts on the piston in the directio
    Type: Application
    Filed: August 14, 2006
    Publication date: August 26, 2010
    Applicant: LAEIS GmbH
    Inventors: Matthias Hahn, Ralph Lutz
  • Patent number: 7661212
    Abstract: The invention relates to an appliance for ironing or steaming linen, comprising a device which is used spread an additive over the linen and a container for said additive (20). The invention is characterized in that the additive container (20) comprises a substrate (22) bearing microcapsules and in that said microcapsules are carried progressively by a flow of fluid discharged by the device in order to spread the additive over the linen, said flow conveying the microcapsules outside of the appliance.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: February 16, 2010
    Assignee: Rowenta Werke GmbH
    Inventor: Matthias Hahn
  • Patent number: 7644525
    Abstract: Steam iron comprising a sole (1) in thermal communication with a heating body (5) equipped with a steam chamber (53), the steam chamber (53) communicating with a reservoir (7) by means of a supply circuit comprising a flow control valve (10) whose degree of opening is controlled by a thermally deformable element (16) in thermal communication with the heating body (5), characterized in that the opening of the control valve (10) is braked, beginning at an intermediate temperature, by a stabilizing element (18) that exerts a force that opposes the force generated by the thermally deformable element (16).
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: January 12, 2010
    Assignee: Rowenta Werke GmbH
    Inventors: Jochen Weber, Matthias Hahn
  • Patent number: 7603800
    Abstract: An iron comprising a sole plate and a heating body (2) provided with a heating element (201), wherein the heating body (2) includes a first steam chamber (210) used for ordinary ironing, and a second steam chamber (220) used to provide extra steam when the iron is in a horizontal position, or a steam jet when the iron is in a vertical position, and liquid is supplied to said second steam chamber (220) by means of a pump manually operated by the user and combined with a steam circuit (223) ending in a set of vapour outlets in the sole plate, characterised in that when the iron is held in a vertical position, the second steam chamber (220) operates as a boiler-type steam generator, and in that when the iron is in said vertical position, the shape of the second steam chamber (220) is such that the liquid injected by the pump can be retained prior to vaporisation.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: October 20, 2009
    Assignee: Rowenta Werke GmbH
    Inventors: Michael Kübert, Matthias Hahn, Otto Göhre
  • Publication number: 20090241614
    Abstract: A locking device for a telescoping pole for use with a retractable handle system, the pole having at least one moveable section slideably mounted in a guide member having at least one opening. The locking device includes a body fixed to the movable section, a locking member carried by the body and movable between locking an unlocking positions, a rotatable lever carried by the body and pivotable between a release position, in which relative movement is permitted between the movable section and the guide member, and a blocking position, in which the lever comes to bear on the guide member and exerts a force assuring a transverse immobilization of the moveable section in the guide member. The lever is coupled to the locking member to be displaced toward the blocking position when the locking member is engaged in the opening under the force produced by a restoring element.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 1, 2009
    Inventor: Matthias HAHN
  • Publication number: 20090165340
    Abstract: The invention concerns a steam iron comprising a scaling indicator (10) and including a heating element (3) provided with a vaporizing chamber (30) for producing steam, the heating element (3) comprising an electrical heating resistor (31) controlled by a thermostat (6). The invention is characterized in that it is equipped with means for counting the number of cycles closing or opening the thermostat (6) and in that the scaling indicator (10) is activated based on the number of cycles of the thermostat (6).
    Type: Application
    Filed: March 7, 2007
    Publication date: July 2, 2009
    Applicant: ROWENTA WERKE GMBH
    Inventor: Matthias Hahn
  • Patent number: 7481161
    Abstract: A plunger-cylinder assembly for a press including a plunger which is accommodated at least in part in a cylinder while separating the interior of the cylinder into two partial chambers along the cylinder axis. A relieving device which counteracts an increase in pressure of a fluid accommodated in the first partial chamber is disposed in at least one first partial chamber the increase in pressure being caused by a movement of the plunger along the cylinder axis in the direction of the first partial chamber. A hydraulic press encompassing such a plunger-cylinder assembly is also described.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: January 27, 2009
    Assignee: LAEIS GmbH
    Inventors: Matthias Hahn, Volker Manternach
  • Publication number: 20090000161
    Abstract: Steam iron comprising a sole (1) in thermal communication with a heating body (5) equipped with a steam chamber (53), the steam chamber (53) communicating with a reservoir (7) by means of a supply circuit comprising a flow control valve (10) whose degree of opening is controlled by a thermally deformable element (16) in thermal communication with the heating body (5), characterized in that the opening of the control valve (10) is braked, beginning at an intermediate temperature, by a stabilizing element (18) that exerts a force that opposes the force generated by the thermally deformable element (16).
    Type: Application
    Filed: December 6, 2006
    Publication date: January 1, 2009
    Applicant: ROWENTA WERKE GMBH
    Inventors: Jochen Weber, Matthias Hahn
  • Publication number: 20080234429
    Abstract: The present invention relates to a method for the production of pulverulent high-molecular water-soluble polymers for application in solid/liquid separation processes. The invention relates in particular to a method for modifying and drying inverse polymer dispersions with the help of kneading technology whilst recovering the solvents used.
    Type: Application
    Filed: June 8, 2006
    Publication date: September 25, 2008
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Matthias Hahn, Antje Lieske
  • Publication number: 20080210108
    Abstract: Disclosed is a plunger-cylinder assembly for a press, comprising a plunger (5) which is accommodated at least in part in a cylinder (1) while separating the interior (10) of the cylinder into two partial chambers (10.1, 10.2) along the cylinder axis (X). A relieving device which counteracts an increase in pressure of a fluid accommodated in the first partial chamber (10.1) is disposed in at least one first partial chamber (10.1), said increase in pressure being caused by a movement of the plunger (5) along the cylinder axis (X) in the direction of the first partial chamber. Also disclosed is a hydraulic press encompassing such a plunger-cylinder assembly.
    Type: Application
    Filed: July 11, 2006
    Publication date: September 4, 2008
    Inventors: Matthias Hahn, Volker Manternach
  • Publication number: 20080168688
    Abstract: The invention relates to an appliance for ironing or steaming linen, comprising a device which is used spread an additive over the linen and a container for said additive (20). The invention is characterised in that the additive container (20) comprises a substrate (22) bearing microcapsules and in that said microcapsules are carried progressively by a flow of fluid discharged by the device in order to spread the additive over the linen, said flow conveying the microcapsules outside of the appliance.
    Type: Application
    Filed: February 6, 2006
    Publication date: July 17, 2008
    Inventor: Matthias Hahn
  • Patent number: 7305780
    Abstract: Pressing iron composed of a soleplate fixed to a heating body, wherein the soleplate has a pattern of at least 200 steam outlet holes each having a passage cross section smaller than 4 mm2, with spacings of less than 10 mm between hole centers, and wherein the pattern of steam outlet holes is interrupted by an imperforate band having a width greater than 10 mm, which band extends over the pattern.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: December 11, 2007
    Assignee: Rowenta Werke GmbH
    Inventors: Andrea Lukas, Matthias Hahn, Michel Forest
  • Publication number: 20070079534
    Abstract: Pressing iron composed of a soleplate fixed to a heating body, wherein the soleplate has a pattern of at least 200 steam outlet holes each having a passage cross section smaller than 4 mm2, with spacings of less than 10 mm between hole centers, and wherein the pattern of steam outlet holes is interrupted by an imperforate band having a width greater than 10 mm, which band extends over the pattern.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 12, 2007
    Applicant: ROWENTA Werke GmbH
    Inventors: Andrea Lukas, Matthias Hahn, Michel Forest
  • Publication number: 20070000159
    Abstract: An iron comprising a sole plate and a heating body (2) provided with a heating element (201), wherein the heating body (2) includes a first steam chamber (210) used for ordinary ironing, and a second steam chamber (220) used to provide extra steam when the iron is in a horizontal position, or a steam jet when the iron is in a vertical position, and liquid is supplied to said second steam chamber (220) by means of a pump manually operated by the user and combined with a steam circuit (223) ending in a set of vapour outlets in the sole plate, characterised in that when the iron is held in a vertical position, the second steam chamber (220) operates as a boiler-type steam generator, and in that when the iron is in said vertical position, the shape of the second steam chamber (220) is such that the liquid injected by the pump can be retained prior to vaporisation.
    Type: Application
    Filed: July 12, 2004
    Publication date: January 4, 2007
    Applicant: ROWENTA WERKE GMBH
    Inventors: Michael Kubert, Matthias Hahn, Otto Gohre
  • Patent number: 7069672
    Abstract: A shoe with a foot-massaging effect comprises a sole, optionally with a heel, and a top material. A cushion containing a massage element and/or active medical agents is provided in the interior of the shoe, above the sole, said cushion has a flexible base panel on the bottom, corresponding to the shape of the sole, and an elastic protective nonwoven fabric on the top, the latter being permanently connected to said base panel. A toe cap containing active medical agents can also be provided in the tip of the shoe. These measures result in a fairly significant foot-massaging effect and at the same time, enable the show to be used without creating an odor.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: July 4, 2006
    Inventor: Matthias Hahn