Patents by Inventor Ingo Stephan
Ingo Stephan 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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Publication number: 20240040716Abstract: A pressure equalising device for a housing, including an inside, an outside, and a lattice-like cage having a gas passage opening. The gas passage opening connects the inside and the outside in a differential pressure-dependent and flow-conducting manner. The gas passage opening is covered by a gas-permeable membrane which includes at least one nonwoven layer. The nonwoven layer includes fibers which are substantially completely sheathed by a sheath of an elastomer.Type: ApplicationFiled: January 18, 2022Publication date: February 1, 2024Inventors: Christopher SCHAEFER, Ingo STEPHAN, Markus FILLER
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Patent number: 9388921Abstract: A plug-in piece 1 for sealing connection of two mutually assigned cylindrical surfaces includes an essentially tubular support body 2, which on its ends exhibits annularly encircling sealing elements, which can be made to engage to produce a sealing connection with the cylindrical surfaces to be sealed, wherein at least one of the sealing elements is configured as an annularly encircling sealing bead 3, 30 on the outer surface of the support body 2, with a spherically curved sealing surface. Provision is made that the spherical radius of the sealing surface (3, 30) is chosen so that the center of the sphere is roughly at the axis of support body (2) symmetry. Thus, the compression forces are ensured to remain largely constant, independent of the angular setting over the entire surface of the sealing bead.Type: GrantFiled: August 28, 2013Date of Patent: July 12, 2016Assignee: Carl Freudenberg KGInventors: Hans Unger, Ralf Heldmann, Ingo Stephan, Markus Clemens, Carsten Hartmann, Ernst Jakob, Stephan Reddig
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Publication number: 20140091532Abstract: A plug-in piece for sealing connection of two mutually assigned cylindrical surfaces includes an essentially tubular support body which on its ends exhibits annularly encircling sealing elements with a spherically curved sealing surface with a fluting formed therein.Type: ApplicationFiled: August 23, 2013Publication date: April 3, 2014Applicant: CARL FREUDENBERG KGInventors: Hans UNGER, Ralf HELDMANN, Ingo STEPHAN, Markus CLEMENS, Carsten HARTMANN, Ernst JAKOB, Stephan REDDIG
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Publication number: 20140091533Abstract: A plug-in piece 1 for sealing connection of two mutually assigned cylindrical surfaces includes an essentially tubular support body 2, which on its ends exhibits annularly encircling sealing elements, which can be made to engage to produce a sealing connection with the cylindrical surfaces to be sealed, wherein at least one of the sealing elements is configured as an annularly encircling sealing bead 3, 30 on the outer surface of the support body 2, with a spherically curved sealing surface. Provision is made that the spherical radius of the sealing surface (3, 30) is chosen so that the center of the sphere is roughly at the axis of support body (2) symmetry. Thus, the compression forces are ensured to remain largely constant, independent of the angular setting over the entire surface of the sealing bead.Type: ApplicationFiled: August 28, 2013Publication date: April 3, 2014Applicant: Carl Freudenberg KGInventors: Hans UNGER, Ralf HELDMANN, Ingo STEPHAN, Markus CLEMENS, Carsten HARTMANN, Ernst JAKOB, Stephan REDDIG
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Publication number: 20120107650Abstract: A valve apparatus (4) is provided for a housing (2) of an electrochemical current source (1). Furthermore, the magnetic valve apparatus (4) is provided for, among other things, battery housings, fuel cell housings as well as chemical or biological reactors. As a result of using a magnetic valve apparatus (4) as an excess pressure valve, the housing (2) can be designed to operate safely even after years of use, and in addition, the valve apparatus (4) can automatically change back into the closed position after an opening and a pressure degradation and can thus build up again a protection against the penetration of fluids into the inner space (5) of the housing without external action.Type: ApplicationFiled: February 9, 2011Publication date: May 3, 2012Applicant: CARL FREUDENBERG KGInventors: Peter Kritzer, Olaf Nahrwold, Markus Clemens, Hans Unger, Thomas Kramer, Ingo Stephan, Georg Feurer
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Publication number: 20120040217Abstract: A closing element for closing an opening (3) of a battery housing (1), including a cover (5), whereby the cover (5) comprises a connection groove (6) into which groove a wall (13) of a battery housing (1) can be inserted, whereby a connection piece (7) that can be deformed without destruction projects from the cover (5) and whereby the connection piece (7) is provided with a nipple (8). The closing element solves the problem of designing and further developing a battery housing in such a manner that it has a reliable tightness in normal operation but in abnormal occurrences it allows gases to escape without problems and in a directed manner without parts of the battery housing or of a valve being slung away in an uncontrolled manner.Type: ApplicationFiled: February 9, 2011Publication date: February 16, 2012Applicant: CARL FREUDENBERG KGInventors: Peter Kritzer, Olaf Nahrwold, Markus Clemens, Hans Unger, Thomas Kramer, Ingo Stephan
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Patent number: 6851927Abstract: A fluid-flow machine includes an outer casing having a rotationally mounted rotor with three blade regions. The blade regions are divided into an inner blade region and two outer blade regions, the two outer blade regions pointing outward toward the outer casing end. The fluid-flow machine includes one or more outlet openings, via which the flow medium is divided into two partial flows. The two partial flows then flow through the respective outer blade regions.Type: GrantFiled: February 6, 2003Date of Patent: February 8, 2005Assignee: Siemens AktiengesellschaftInventors: Gerhard Klaus, Ingo Stephan
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Publication number: 20030175117Abstract: A fluid-flow machine includes an outer casing having a rotationally mounted rotor with three blade regions. The blade regions are divided into an inner blade region and two outer blade regions, the two outer blade regions pointing outward toward the outer casing end. The fluid-flow machine includes one or more outlet openings, via which the flow medium is divided into two partial flows. The two partial flows then flow through the respective outer blade regions.Type: ApplicationFiled: February 6, 2003Publication date: September 18, 2003Inventors: Gerhard Klaus, Ingo Stephan
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Patent number: 6345952Abstract: A steam turbine has a turbine shaft directed along a turbine axis. A plurality of turbine stages, each include a guide-blade structure and a moving-blade configuration located axially downstream of the guide-blade structure. The guide-blade structure and the moving-blade configuration are provided along the turbine shaft. Each stage has an average reaction degree achievable between 5% and 70%. The reaction degree of at least two turbine stages is of different values.Type: GrantFiled: July 14, 1999Date of Patent: February 12, 2002Assignee: Siemens AktiengesellschaftInventors: Heinrich Oeynhausen, Wilfried Ulm, Ralf Bell, Ulrich Capelle, Jan-Erik Mühle, Mikhail Simkine, Ingo Stephan, Volker Simon
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Patent number: 6305901Abstract: A steam turbine has a high-pressure turbine section and a medium-pressure turbine section fluidically connected to the high-pressure turbine section. The high-pressure turbine section is a chamber configuration and the medium-pressure turbine section is a drum configuration. Alternatively, the high-pressure turbine section is a drum configuration and the medium-pressure turbine section is a chamber configuration. Alternatively, or additionally, the high-pressure turbine section is a double-flow configuration and the medium-pressure turbine section is a double-flow configuration.Type: GrantFiled: July 14, 1999Date of Patent: October 23, 2001Assignee: Siemens AktiengesellschaftInventors: Ralf Bell, Ulrich Capelle, Armin Drosdziok, Jan-Erik Mühle, Mikhail Simkine, Ingo Stephan, Volker Simon