Patents by Inventor Andreas Grundler
Andreas Grundler 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: 20240066479Abstract: The invention relates to a rotor shaft for a dynamic mixer, in particular a dental dynamic mixer, for mixing low to high viscous components, comprising a mixing area and a connection geometry adjoining the mixing area, the mixing area comprising a central shaft having a distal end and a proximal end abutting the connection geometry, and having at least one worm thread, in particular the rotor shaft has at least two mixing sections, a first mixing section comprising at least two mixing blades radially oriented on the surface of the central shaft and a second mixing section comprising at least one worm thread having spirally running thread flanks, the spirally running thread flanks peripherally entwining the surface of the central shaft. Furthermore, the invention relates to a dynamic mixer, in particular a dental dynamic mixer, comprising the rotor shaft, as well as its use for mixing low to high viscous components.Type: ApplicationFiled: December 16, 2021Publication date: February 29, 2024Applicant: Kulzer GmbHInventors: Andreas GRUNDLER, Mike KONDZIELA, Stephan DEKERT
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Publication number: 20240050321Abstract: The invention relates to a retraction paste comprising a composition of i) 10 to 25% by weight at least one astringent compound, ii) 50 to 75% by weight fillers, iii) 10 to 35% by weight protic liquid, and iv) 0 to 10% by weight pigments, dye and/or rheology additive, ii) the fillers comprising kaolinite and mica in the ratio of 4:1 to 1.5:1 and, the total composition of components i) to iv) in the retraction paste amounting to 100% by weight, a method for producing the retraction paste, a kit comprising a container with the retraction paste for single or repeated use, as well as a retraction paste as an agent for haemostasis.Type: ApplicationFiled: December 16, 2021Publication date: February 15, 2024Applicant: KULZER GMBHInventors: Andreas GRUNDLER, Martin GRUNWALD, Peter DEUTZMANN
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Publication number: 20230363982Abstract: Dental coating compositions that have one or more of excellent properties including plaque resistance, microbial plaque resistance, strong adhesion, excellent hardness, high wear resistance, and high color resistance are provided. Dental appliance or natural tooth covered by the dental coating compositions, and production methods of the dental coating compositions are also provided. The coating compositions include one or more of a trifunctional or higher multifunctional (meth)acrylate monomer, an inorganic filler, a photoinitiator, and an organic solvent. The coating compositions are substantially free from antibacterial chemical additives.Type: ApplicationFiled: September 15, 2021Publication date: November 16, 2023Inventors: Hideyuki ITO, Yoko KOSUGI, James Myoungsouk JANG, Ren-Zhi JIN, Sapna BLACKBURN, Klaus RUPPERT, Andreas GRUNDLER, Andrea HAMBACH
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Publication number: 20220258112Abstract: The present invention relates to a dynamic mixer, in particular for dental materials having different viscosity. Furthermore, the invention relates to a method for producing a dynamic mixer, in particular for dental materials of different viscosity.Type: ApplicationFiled: July 10, 2020Publication date: August 18, 2022Applicant: Kulzer GmbHInventors: Mike KONDZIELA, Andreas GRUNDLER, Michael HENDRICH
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Publication number: 20200315752Abstract: The invention relates to a squeeze-out device for driving out a highly viscous dental material from a cartridge system, having an actuator, a motor, a controller, an operating device and at least one force sensor, wherein at least one discharging plunger of the cartridge system is drivable by the actuator, wherein the actuator is drivable by the motor or mechanically transmitted driving of the actuator is supportable by the motor, wherein the operating device is manually operable, wherein the at least one force sensor is connected to the operating device such that at least the magnitude of a force acting on the operating device and/or at least the magnitude of a torque acting on the operating device is measurable, and wherein the motor is controllable by the controller depending on the measured magnitude of the force acting on the operating device and/or of the torque acting on the operating device, said magnitude being measured by the at least one force sensor.Type: ApplicationFiled: March 26, 2020Publication date: October 8, 2020Inventors: Andreas Grundler, Stephan Schmid, Yvonne Abel
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Patent number: 9022258Abstract: A container (10, 30, 50) is provided for single- or multi-component molding materials. The container has a container body (12, 32, 52) having a constant outer contour in a longitudinal extent of the container (10, 30, 50), a piston (17, 37) movable in the longitudinal direction, and a cover (11, 31) having an outlet opening (13, 33, 53). A volume for a molding material is defined between the piston (17, 37) and the cover (11, 31), the volume being variable in the direction of the longitudinal extent of the container (10, 30, 50). The container distinguishes itself in that the container body (12, 32, 52) is rotatable relative to the outlet opening (13, 33, 53), and the piston (17, 37) thereby pushes out the content of the container (10, 30, 50).Type: GrantFiled: September 13, 2011Date of Patent: May 5, 2015Assignee: Heraeus Kulzer GmbHInventors: Klaus-Dieter Nehren, Andreas Grundler, Udo Friese, Susanne Botzum, Manuel Meier-Staude, Guenter Jasper, Uwe Lanzendorf-Linkweiler, Heike Hennen, Alf Memmer, Michael Freckmann
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Patent number: 8631973Abstract: Single-use cartridges for the storing and dispensing of dental two-component impression materials have a closable external chamber with a cylinder-shaped external wall, a cylindrical closable internal chamber that is arranged coaxially or eccentric therein, a mixing element including housing and mobile mixer that is to be mounted separately or connected firmly to the external chamber at its inlet end. Either the internal cylindrical chamber is arranged such that it can be rotated and forms the drive shaft for the mobile mixer part of the mixing element, or the drive shaft extends parallel to the central axis through the internal cylindrical chamber or forms the central axis. The content of the chambers can be dispensed by means of conveying means whose axial thrust motions can be controlled independent of each other.Type: GrantFiled: June 29, 2010Date of Patent: January 21, 2014Assignee: Heraeus Kulzer GmbHInventors: Andreas Grundler, Klaus-Dieter Nehren, Alfred von Schuckmann
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Publication number: 20130181012Abstract: A container (10, 30, 50) is provided for single- or multi-component molding materials. The container has a container body (12, 32, 52) having a constant outer contour in a longitudinal extent of the container (10, 30, 50), a piston (17, 37) movable in the longitudinal direction, and a cover (11, 31) having an outlet opening (13, 33, 53). A volume for a molding material is defined between the piston (17, 37) and the cover (11, 31), the volume being variable in the direction of the longitudinal extent of the container (10, 30, 50). The container distinguishes itself in that the container body (12, 32, 52) is rotatable relative to the outlet opening (13, 33, 53), and the piston (17, 37) thereby pushes out the content of the container (10, 30, 50).Type: ApplicationFiled: September 13, 2011Publication date: July 18, 2013Applicant: HERAEUS KULZER GMBHInventors: Klaus-Dieter Nehren, Andreas Grundler, Udo Friese, Susanne Botzum, Manuel Meier-Staude, Guenter Jasper, Uwe Lanzendorf-Linkweiler, Heike Hennen, Alf Memmer, Michael Freckmann
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Patent number: 8431407Abstract: Temperature and/or irradiation and/or polymerization indicators comprise at least one 1,3-dipole and at least one dipolarophile, the dipole preferably being an ylide from the group of azomethines (sydnones), azomethinylides (munchnones), carbonylylides (isomunchnones), thiocarbonylylides (thioisomunchnones), or 1,3-dithiolylium-4-olates.Type: GrantFiled: May 26, 2006Date of Patent: April 30, 2013Assignee: Heraeus Kulzer GmbHInventor: Andreas Grundler
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Publication number: 20110084093Abstract: A dental mixing device (10) is provided for generating a multi-component material (11) by squeezing out and mixing the components of the multi-component material (11) from at least one first (20, 20?) and one second cartridge (30, 30?). The first cartridge (20, 20?) and the second cartridge (30, 30?) are arranged in the dental mixing device (10) such as to be replaceable. The mixing device has a first (21) and a second feed line (31) for guiding the components respectively from the first cartridge (20, 20?) and the second cartridge (30, 30?) into a mixer (40) and has a motorized advancer (50) for squeezing the components from the first (20, 20?) and the second cartridge (30, 30?). At least the first cartridge (20, 20?) is a unit-dose package and has a first volume between 20 ml and 60 ml.Type: ApplicationFiled: October 11, 2010Publication date: April 14, 2011Applicant: HERAEUS KULZER GMBHInventors: Klaus-Dieter NEHREN, Andreas GRUNDLER, Alf MEMMER
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Publication number: 20100330525Abstract: Single-use cartridges for the storing and dispensing of dental two-component impression materials have a closable external chamber with a cylinder-shaped external wall, a cylindrical closable internal chamber that is arranged coaxially or eccentric therein, a mixing element including housing and mobile mixer that is to be mounted separately or connected firmly to the external chamber at its inlet end. Either the internal cylindrical chamber is arranged such that it can be rotated and forms the drive shaft for the mobile mixer part of the mixing element, or the drive shaft extends parallel to the central axis through the internal cylindrical chamber or forms the central axis. The content of the chambers can be dispensed by means of conveying means whose axial thrust motions can be controlled independent of each other.Type: ApplicationFiled: June 29, 2010Publication date: December 30, 2010Applicant: HARAEUS KULZER GMBHInventors: Andreas Grundler, Klaus-Dieter Nehren, Alfred von Schuckmann
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Patent number: 7604480Abstract: A self-curing or dual-curing, low viscosity composite is used for the fabrication of a dental liner capable of polymerization in 2 stages with 2 curing times and delayed polymerization characteristics that is designed for use at the cavity wall in the form of a thin layer.Type: GrantFiled: November 7, 2006Date of Patent: October 20, 2009Assignee: Heraeus Kulzer GmbHInventors: Andreas Grundler, Marcus Hoffmann
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Patent number: 7601767Abstract: For composite materials having a total filler content of 80 to 95% by weight, containing A) 0.5 to 10% by weight of non-agglomerated nanofillers having particle sizes of 1 to 50 nm in the filler component, B) at least 60% by weight of a filler mixture of 50 to 90% coarse-particle and 10 to 50% fine-particle dental glass in the filler component, having a size ratio, relative to the average particle size (d50 value), of coarse to fine particles of >1:4 to 1:30, C) as monomer component, a monomer mixture of i. 60 to 80% bis-GMA or TCD-di-HEMA or TCD-di-HEA, ii. 10 to 18% UDMA, iii. Residual TEDMA and/or multifunctional crosslinkers, D) up to 1% photoinitiator(s); and E) optionally, at least one additional dental glass in the filler component having a different particle size than the coarse- and fine-particle dental glass, the polymerization shrinkage may be reduced to <1.Type: GrantFiled: April 21, 2006Date of Patent: October 13, 2009Assignee: Heraeus Kutzer GmbHInventors: Klaus Ruppert, Andreas Grundler, Kurt Reischl, Michael Eck, Alfred Hohmann, Christine Diefenbach
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Publication number: 20090098503Abstract: Foam-generating, hardening composition for making impressions of biological surfaces include A at least one impression material based on i isocyanates, which react with mono- and multi-functional amines and/or compounds having hydroxyl groups, to form urethane or urea, or ii A-silicones, or iii C-silicones, or iv Polyethers, or v alpha-silanes, or vi mixtures of two or more materials i to v, and optionally B at least one foaming agent. Impressions of biological surfaces made from this compound have a foam with closed pores.Type: ApplicationFiled: April 3, 2008Publication date: April 16, 2009Applicant: Heraeus Kulzer GmbHInventors: GOTTFRIED KNISPEL, Martin Grunwald, Andreas Grundler
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Patent number: 7425587Abstract: A flowable, light-curing underfilling material that is easily visible and distinguishable from the tooth substance. The underfilling material contains at least one polymerizable monomer, at least one polymerization initiator and also 0.3-10% white pigment.Type: GrantFiled: February 3, 2005Date of Patent: September 16, 2008Assignee: Heraecus Kulzer GmbHInventors: Andreas Grundler, Albert Erdrich, Michael Greczmiel, Claus-Peter Ernst
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Publication number: 20070213460Abstract: Disclosed are polymerizable dental materials containing silver particles having a primary particles diameter <40 nm as an antimicrobidal additive. The inventive dental materials are suitable as filling composites, basic prosthetic materials, adhesives, coating composites for crowns and bridges, and materials for artificial teeth, for example.Type: ApplicationFiled: December 13, 2004Publication date: September 13, 2007Applicant: Heraeus Kulzer GmbHInventors: Klaus Ruppert, Andreas Grundler, Albert Erdrich
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Publication number: 20070142496Abstract: A self-curing or dual-curing, low viscosity composite is used for the fabrication of a dental liner capable of polymerization in 2 stages with 2 curing times and delayed polymerization characteristics that is designed for use at the cavity wall in the form of a thin layer.Type: ApplicationFiled: November 7, 2006Publication date: June 21, 2007Applicant: Heraeus Kulzer GmbHInventors: Andreas Grundler, Marcus Hoffmann
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Publication number: 20060280649Abstract: Temperature and/or irradiation and/or polymerization indicators comprise at least one 1,3-dipole and at least one dipolarophile, the dipole preferably being an ylide from the group of azomethines (sydnones), azomethinylides (munchnones), carbonylylides (isomunchnones), thiocarbonylylides (thioisomunchnones), or 1,3-dithiolylium-4-olates.Type: ApplicationFiled: May 26, 2006Publication date: December 14, 2006Applicant: HERAEUS KULZER GMBHInventor: Andreas Grundler
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Publication number: 20060252845Abstract: For composite materials having a total filler content of 80 to 95% by weight, containing A) 0.5 to 10% by weight of non-agglomerated nanofillers having particle sizes of 1 to 50 nm in the filler component, B) at least 60% by weight of a filler mixture of 50 to 90% coarse-particle and 10 to 50% fine-particle dental glass in the filler component, having a size ratio, relative to the average particle size (d50 value), of coarse to fine particles of >1:4 to 1:30, C) as monomer component, a monomer mixture of i. 60 to 80% bis-GMA or TCD-di-HEMA or TCD-di-HEA, ii. 10 to 18% UDMA, iii. Residual TEDMA and/or multifunctional crosslinkers, D) up to 1% photoinitiator(s); and E) optionally, at least one additional dental glass in the filler component having a different particle size than the coarse- and fine-particle dental glass, the polymerization shrinkage may be reduced to <1.Type: ApplicationFiled: April 21, 2006Publication date: November 9, 2006Applicant: Heraeus Kulzer GmbHInventors: Klaus Ruppert, Andreas Grundler, Kurt Reischl, Michael Eck, Alfred Hohmann, Christine Diefenbach
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Publication number: 20060241203Abstract: Dental materials containing at least one dendritic compound composed of a core and two shells, the core and first and second shells of which are joined to one another by means of polyurethane groups, and the second shell of which is modified by reaction with a (meth)acrylate, exhibit improved mechanical properties, in particular elasticity, flexural strength, and improved rheological properties before curing.Type: ApplicationFiled: April 5, 2006Publication date: October 26, 2006Applicant: Heraeus Kulzer GmbHInventors: Klaus Ruppert, Andreas Grundler, Kurt Reischl