Patents by Inventor Paul Ludwig
Paul Ludwig 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: 11974676Abstract: A body support structure includes a structural lattice structure having a first stiffness, and a compressive lattice structure supported by the structural lattice structure and having a second stiffness less than the first stiffness. A skin lattice structure is supported by the compressive lattice structure, wherein the skin lattice structure is resistant to shear deformation in response to a normal force and is expandable in a direction transverse to the normal force.Type: GrantFiled: April 12, 2022Date of Patent: May 7, 2024Assignee: STEELCASE INC.Inventors: Nickolaus William Charles Deevers, Carl V. Forslund, III, John Hamilton, Kurt R. Heidmann, James Ludwig, Bruce Smith, Aaron Michael Porterfield, Sharon L. Tracy, Paul Noll
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Patent number: 11125244Abstract: An electric coolant pump is used as an auxiliary water pump in a vehicle. The pump includes radial mounting of the shaft (4) is provided by means of a coolant-lubricated radial sliding bearing (41) arranged between the pump impeller (2) and the rotor (32). A dry-running electric motor (3) with a radially inner stator (31) and a radially outer rotor (32) is accommodated in a motor chamber (13) separated from the pump chamber (10). A shaft seal (5) is between the radial sliding bearing (41) and the motor chamber (13). The rotor (32) is bell-shaped with an inner surface facing the shaft seal (5) and being fixed to the shaft seal (5) to axially overlap with the shaft (4). The motor chamber (13) has an opening to the atmosphere, which is closed by a liquid-tight pressure equalization membrane (6) that is permeable to vapor.Type: GrantFiled: July 10, 2018Date of Patent: September 21, 2021Assignee: NIDEC GPM GmbHInventors: Franz Pawellek, Conrad Nickel, Jens Hoffmann, Robin Büsch, Paul Ludwig, Jakob Schnitzer, Silvio Werner
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Patent number: 11092159Abstract: In an electrical coolant pump, preferably for use as an additional water pump in a vehicle, a radial bearing of the shaft is provided by means of a radial slide bearing lubricated with coolant on the separating element which is disposed between the pump impeller and the rotor. A dry-running electric motor has a radially inner stator and a radially outer rotor is accommodated within the motor chamber. A shaft seal is disposed between the radial slide bearing and the motor chamber. The rotor is formed in a cup shape, the inner surface of which faces the shaft seal and is fixed to the shaft in an axially overlapping manner. The motor chamber has an opening to the atmosphere which is closed by a liquid-tight and vapor-permeable pressure equalizing membrane. The separating element is configured as a support flange with a separating portion and an axial projection into the motor chamber, to which the stator is attached.Type: GrantFiled: October 25, 2018Date of Patent: August 17, 2021Assignee: NIDEC GPM GmbHInventors: Franz Pawellek, Conrad Nickel, Jens Hoffmann, Robin Büsch, Silvio Werner, Jakob Schnitzer, Paul Ludwig
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Publication number: 20210164473Abstract: An electrical coolant pump, preferably for use as an additional water pump in a vehicle, is characterised in that a radial bearing of the shaft (4) is provided by means of a radial slide bearing (41) lubricated with coolant on the separating element (12) which is disposed between the pump impeller (2) and the rotor (32); a dry-running electric motor (3) having a radially inner stator (31) and a radially outer rotor (32) is accommodated within the motor chamber (13); a shaft seal (5) is disposed between the radial slide bearing (41) and the motor chamber (13); the rotor (32) is formed in a cup shape, the inner surface of which faces the shaft seal (5) and is fixed to the shaft (4) in an axially overlapping manner; the motor chamber (13) has an opening to the atmosphere which is closed by a liquid-tight and vapour-permeable pressure equalising membrane (6); the separating element (12) is configured as a support flange with a separating portion (12a) and an axial projection (12b) into the motor chamber (13), toType: ApplicationFiled: October 25, 2018Publication date: June 3, 2021Inventors: Franz Pawellek, Conrad Nickel, Jens Hoffmann, Robin Büsch, Silvio Werner, Jakob Schnitzer, Paul Ludwig
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Publication number: 20210071679Abstract: An electric coolant pump is used as an auxiliary water pump in a vehicle. The pump includes radial mounting of the shaft (4) is provided by means of a coolant-lubricated radial sliding bearing (41) arranged between the pump impeller (2) and the rotor (32). A dry-running electric motor (3) with a radially inner stator (31) and a radially outer rotor (32) is accommodated in a motor chamber (13) separated from the pump chamber (10). A shaft seal (5) is between the radial sliding bearing (41) and the motor chamber (13). The rotor (32) is bell-shaped with an inner surface facing the shaft seal (5) and being fixed to the shaft seal (5) to axially overlap with the shaft (4). The motor chamber (13) has an opening to the atmosphere, which is closed by a liquid-tight pressure equalization membrane (6) that is permeable to vapor.Type: ApplicationFiled: July 10, 2018Publication date: March 11, 2021Applicant: NIDEC GPM GmbHInventors: Franz PAWELLEK, Conrad NICKEL, Jens HOFFMANN, Robin BÜSCH, Paul LUDWIG, Jakob SCHNITZER, Silvio WERNER
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Publication number: 20200158242Abstract: The invention relates to a seal device for hydraulically sealing off sealing faces of components which are movable relative to each other in a translational or rotational relative movement, said device having a tough, elastic sealing device seal body (1) with at least one sliding face (10) which is assigned to at least one sealing face of one of the components, a plurality of cavities (2; 2a, 2b; 22) being formed in the at least one sliding face (10), said cavities having closed contours which are delimited from one another towards the sliding face (10). The contours of the cavities (2; 2a, 2b; 22) have a longer dimension (x) in a contour longitudinal direction (X) and a shorter dimension (y) in a contour transverse direction (Y).Type: ApplicationFiled: July 9, 2018Publication date: May 21, 2020Applicant: NIDEC GPM GMBHInventors: Marcel BERNER, Paul LUDWIG, Sebastian EGERMEIER, Florian HOFFMANN
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Publication number: 20070054086Abstract: Some embodiments of a substantially nonmetallic flashing device may have a particular sheet thickness to provide enhanced functionality in certain environments, such as a barrier layer for a treated lumber post or flashing for a ledger board that is mounted to a building. In certain embodiments, the substantially nonmetallic flashing sheet may have an advantageous sheet thickness that provides the opportunity for particular surface finishing operations during manufacture while also providing the opportunity for a user to hand-bend the sheet to form permanent bend lines in desired locations. In particular embodiments, the substantially nonmetallic flashing sheet may include a matte finish on a first side, and a glossy finish on a second side, thereby permitting the end-user to select a suitable surface appearance at the job site.Type: ApplicationFiled: April 7, 2006Publication date: March 8, 2007Inventors: Stephanie Pagel, Paul Ludwig
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Publication number: 20070055007Abstract: A corrosion resistant flashing product may comprise a polymeric composition that is substantially weatherable such that the flashing substantially retains its original properties after prolonged exposure to the outdoor elements while also providing substantial resistance to ACQ or CBA corrosives. In a preferred embodiment, the polymeric material comprises one or more light stabilizers from about 0.3% to about 15% by weight; one or more acrylic impact modifiers and/or process aids from about 2.5% to about 10% by weight; one or more thermal stabilizers from about 0.25% to about 3% by weight; one or more waxes or lubricants (or systems) from about 0.3% to about 7% by weight, and one or more plasticizers from about 0.1% to about 10% by weight.Type: ApplicationFiled: October 20, 2005Publication date: March 8, 2007Inventors: Stephanie Pagel, Paul Ludwig
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Patent number: 6933047Abstract: A curable coating composition which is based on a hydroxyl-functional binder and a blocked polyisocyanate, comprising a suspended finely divided, wax-coated polyamide. This composition exhibits a number of superior properties including having a greatly improved abrasion value.Type: GrantFiled: August 6, 2003Date of Patent: August 23, 2005Assignee: Degussa AGInventors: Joerg Hoehne, Paul-Ludwig Waterkap, Wolfgang Crhistoph
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Patent number: 6857379Abstract: According to a conventional method for incinerating organic waste material, a fluidization device causes an oxygenous fluidizing gas to flow through the waste material, which is located in an incineration chamber, from underneath while forming a fluidized particle layer and the waste material is incinerated. The resulting flue gas is withdrawn via an open space situated above the particle layer and is subjected to a secondary incineration in a secondary reaction zone or secondary incineration chamber. Expanding upon the prior art, the aim of the invention is enable a high throughput for the incineration material while resulting in a low level of nitrogen oxide production, and to increase the productivity for the incineration of organic waste material. To these ends, the invention provides that the fluidized particle layer (3) is concentrated with oxygen in such a manner that a mean oxygen content ranging from 0-3 vol. % is set in the open space (6).Type: GrantFiled: May 2, 2001Date of Patent: February 22, 2005Assignee: Messer Griesheim GmbHInventors: Gerhard Gross, Paul Ludwig, Diana Wassmann, Hans-Peter Theis
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Publication number: 20040130967Abstract: An element (21) for mixing a mass formed of a plurality of components has an input opening (28) for supplying the at least two components into the mixing element (21), an output opening (31) for discharging the mixed mass, and at least one flow channel provided between the input opening (28) and the discharge output (31), with the flow channel being oriented perpendicular to the direction of the input opening (28) or of the output opening (31).Type: ApplicationFiled: October 15, 2003Publication date: July 8, 2004Inventors: Christian Wolf, Paul Ludwig Geiss
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Publication number: 20040103832Abstract: According to a conventional method for incinerating organic waste material, a fluidization device causes an oxygenous fluidizing gas to flow through the waste material, which is located in an incineration chamber, from underneath while forming a fluidized panicle layer and the waste material is incinerated. The resulting flue gas is withdrawn via an open space situated above the particle layer and is subjected to a secondary incineration in a secondary reaction zone or secondary incineration chamber. Expanding upon the prior art, the aim of the invention is enable a high throughput for the incineration material while resulting in a low level of nitrogen oxide production, and to increase the productivity for the incineration of organic waste material. To these ends, the invention provides that the fluidized particle layer (3) is concentrated with oxygen in such a manner that a mean oxygen content ranging from 0-3 vol. % is set in the open space (6).Type: ApplicationFiled: June 16, 2003Publication date: June 3, 2004Inventors: Gerhard Gross, Paul Ludwig, Diana Wassmann, Hans-Peter Theis
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Publication number: 20040096665Abstract: A curable coating composition which is based on a hydroxyl-functional binder and a blocked polyisocyanate, comprising a suspended finely divided, wax-coated polyamide. This composition exhibits a number of superior properties including having a greatly improved abrasion value.Type: ApplicationFiled: August 6, 2003Publication date: May 20, 2004Applicant: DEGUSSA AGInventors: Joerg Hoehne, Paul-Ludwig Waterkap, Wolfgang Crhistoph
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Publication number: 20030191223Abstract: A thermoplastic polymer powder composition which contains a thermoplastic polymer and a laser light-active compound is used for coating of metallic substrates. The resulting coating can be subsequently inscribed using laser light, even after further coating with a finish layer.Type: ApplicationFiled: April 7, 2003Publication date: October 9, 2003Applicant: DEGUSSA AGInventors: Paul-Ludwig Waterkamp, Heinz Scholten, Wolfgang Christoph, Thomas Schiffer
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Patent number: 6589606Abstract: A process is described in which a nonconductive molding is electrostatically coated with a thermoplastic or crosslinkable copolyamide hot-melt adhesive. The hot-melt adhesive may be used as a fine powder with a particle size between 1 and 200 &mgr;m and have a melting point up to 160° C.Type: GrantFiled: June 29, 2001Date of Patent: July 8, 2003Assignee: Degussa AGInventors: Paul-Ludwig Waterkamp, Ulrich Simon, Hans-Willi Losensky
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Publication number: 20030008959Abstract: A composition, particularly suited for forming a surface layer (capstock) with excellent weathering properties of a composite which includes an underlaying layer of PVC or other structural plastic, is comprised of vinyl chloride polymer, an organotin maleate and an acrylic blend of an acylic monomer or copolymer resin and an acrylic weatherable impact modifier.Type: ApplicationFiled: May 31, 2002Publication date: January 9, 2003Inventors: Charles C. Crabb, Peggy S. Schipper, Stephane J. Girois, Paul A. Ludwig, Christopher A. Bertelo
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Publication number: 20020031614Abstract: A process is described which permits the electrostatic coating of nonconducting moldings with thermoplastic or crosslinkable copolyamide hot-melt adhesives.Type: ApplicationFiled: June 29, 2001Publication date: March 14, 2002Inventors: Paul-Ludwig Waterkamp, Ulrich Simon, Hans-Willi Losensky
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Patent number: 6247461Abstract: A relatively simple pressure balanced high flow exhaust gas recirculation (EGR) valve includes an actuator and a separately formed valve assembly retained to the actuator by a deformed lip. The valve body has dual seats controlled by axially spaced heads which are pressure balanced when closed and allow high gas flow when open. The valve body and the associated valve shaft, or portions thereof, are formed of materials having similar coefficients of thermal expansion so that the shaft and body experience similar thermal growth and good seating of the spaced valves is maintained regardless of gas temperature variations. Thickened portions at the valve seats comprise annular ends of a control portion which resist distortion of the seats. The valve body is configured for installation in a cylindrical bore or recess of an associated manifold or other gas passage defining member.Type: GrantFiled: April 23, 1999Date of Patent: June 19, 2001Assignee: Delphi Technologies, Inc.Inventors: Craig Daniel Smith, Paul Ludwig Gluchowski, Dwight Orman Palmer, Mark A. Reeves
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Patent number: 6242504Abstract: A description is given of a method of crosslinking radiation-crosslinkable pressure-sensitive adhesive films by controlled-dose exposure to actinic radiation, which involves exposing the film surface to a regular or irregular radiation pattern made up of regions of different intensity. The method permits a more precise adjustment of the adhesion—in particular, the adhesion of flexible films on a substrate.Type: GrantFiled: September 21, 1998Date of Patent: June 5, 2001Assignee: BASF AktiengesellschaftInventors: Bernd Meyer-Roscher, Wolfgang Schrof, Dieter Urban, Paul Ludwig Geiss, Walter Brockmann
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Patent number: D637637Type: GrantFiled: June 11, 2010Date of Patent: May 10, 2011Assignee: Emcore CorporationInventors: Andrew John Daiber, Yinan Wu, Paul Ludwig