Abstract: Systems, devices, and methods for synchronized clock in management. In an embodiment, a system enables users to clock in to a cloud computing platform over a network through remote clock in devices, regardless of whether the remote clock in devices are online or offline. A clock in manager on the platform is configured to communicate with clock in assistants on remote clock in devices and to manage clock in of users in self and group clock in modes. A predetermined threshold may be used to determine a match with respect to a captured image. A clock in manager may intelligently determine the predetermined threshold according to algorithms based on training data. Face scan guides, liveness detection, and fraud detection may be included. A report engine supports presentations of filtered data from a control panel including map displays of devices or clock in events according to geolocation.

Abstract: A core shooting machine (1) for producing cores by a process of shooting a core sand mixture (21) into at least one cavity (19) in a core box (18), the core shooting machine (1) having a source of compressed air (10) at an adjustable initial machine pressure (P0), a shooting head (13) fluidically coupled to the source of compressed air (10) by at least one conduit (12) that includes an electronically controlled shot valve (11), the shooting head (13) being configured for containing an amount of the core sand mixture (21), resulting in a filling degree of the shooting head (13), and a computing device (50,60) associated with the core shooting machine (1) and being configured to perform a simulation of the process.

Abstract: Systems, devices, and methods for synchronized clock in management. In an embodiment, a system enables users to clock in to a cloud computing platform over a network through remote clock in devices, regardless of whether the remote clock in devices are online or offline. A clock in manager on the platform is configured to communicate with clock in assistants on remote clock in devices and to manage clock in of users in self and group clock in modes. A predetermined threshold may be used to determine a match with respect to a captured image. A clock in manager may intelligently determine the predetermined threshold according to algorithms based on training data. Face scan guides, liveness detection, and fraud detection may be included. A report engine supports presentations of filtered data from a control panel including map displays of devices or clock in events according to geolocation.

Abstract: A core shooting machine (1) for producing cores by a process of shooting a core sand mixture (21) into a at least one cavity (19) in a core box (18), the core shooting machine (1) having a source of compressed air (10) at an adjustable initial machine pressure (P0), a shooting head (13) fluidically coupled to the source of compressed air (10) by at least one conduit (12) that includes an electronically controlled shot valve (11), the shooting head (13) being configured for containing an amount of the core sand mixture (21), resulting in a filling degree of the shoot head (13), and a computing device (50,60) associated with the core shooting machine (1) and being configured to perform a simulation of the process.

Abstract: A core shooting machine (1) for producing cores by a process of shooting a core sand mixture (21) into a at least one cavity (19) in a core box (18), the core shooting machine (1) having a source of compressed air (10) at an adjustable initial machine pressure (P0), a shooting head (13) fluidically coupled to the source of compressed air (10) by at least one conduit (12) that includes an electronically controlled shot valve (11), the shooting head (13) being configured for containing an amount of the core sand mixture (21), resulting in a filling degree of the shoot head (13), and a computing device (50,60) associated with the core shooting machine (1) and being configured to perform a simulation of the process.

Abstract: A core shooting machine (1) for producing cores by a process of shooting a core sand mixture (21) into a at least one cavity (19) in a core box (18) that is associated with the core shooting machine (1).

Abstract: The invention relates to a measuring device which is used to determine the end of the processing time of hardenable materials, especially dental molding materials, comprising a display unit and a sensor unit which detects a modification of at least one of the rheological properties of the material.

Abstract: The invention relates to a dynamic mixer for mixing at least two paste components of different volume proportions. Said mixer comprises a housing with at least two inlet openings and at least one outlet opening, a mixer element being rotatably mounted in a mixing chamber of said housing. The housing has at least one delay chamber comprising a limiting wall that blocks the paste stream in the direction of flow and at least one opening that opens into the mixing chamber, said opening(s) being set back in relation to the limiting wall. The mixer is particularly suitable for mixing paste components with a relatively high viscosity of, for example, greater than 800 Pas.

Abstract: The invention relates to a method for the determination of the patient-related risk of caries by determination of lactic acid and/or lactate in saliva and to a method for the location-specific determination of the patient-related risk of caries.

Abstract: The invention relates to a measuring device which is used to determine the end of the processing time of hardenable materials, especially dental moulding materials, comprising a display unit and a sensor unit which detects a modification of at least one of the rheological properties of the material.

Abstract: The invention relates to a dynamic mixer for mixing at least a first paste and a second paste to produce a dental substance, the mixer comprising: a mixing chamber; an inlet opening for the first paste; an inlet opening for the second paste; a first flow path extending from the inlet opening for the first paste to the mixing chamber; a second flow path extending from the inlet opening for the second paste to the mixing chamber; wherein: the first flow path has a minimal cross-sectional area of greater than 4.0 mm2; the second flow path has a minimal cross-sectional area greater than the minimal cross-sectional area of the first flow path.

Abstract: The invention relates to a dynamic mixer for mixing at least two paste components of different volume proportions. Said mixer comprises a housing with at least two inlet openings and at least one outlet opening, a mixer element being rotatably mounted in a mixing chamber of said housing. The housing has at least one delay chamber comprising a limiting wall that blocks the paste stream in the direction of flow and at least one opening that opens into the mixing chamber, said opening(s) being set back in relation to the limiting wall. The mixer is particularly suitable for mixing paste components with a relatively high viscosity of, for example, greater than 800 Pas.

Abstract: The invention relates to a dynamic mixer for mixing at least two paste components of different volume proportions. Said mixer comprises a housing with at least two inlet openings and at least one outlet opening, a mixer element being rotatably mounted in a mixing chamber of said housing. The housing has at least one delay chamber comprising a limiting wall that blocks the paste stream in the direction of flow and at least one opening that opens into the mixing chamber, said opening(s) being set back in relation to the limiting wall. The mixer is particularly suitable for mixing paste components with a relatively high viscosity of, for example, greater than 800 Pas.

Abstract: The invention relates to an apparatus for generating a multi-component compound, in particular for dental purposes, comprising: —At least two cartridges (3), each cartridge (3) adapted for containing a component (4) of the multi-component compound and having a plunger (2) adapted for pressing out its component (4) from the cartridge (3); and—a driving device plungers (2) in which the driving speed is adjustable, wherein the driving device comprises a stepping motor (1), and a detector associated with the stepping motor for detecting at least one of a) the steps of the stepping motor and b) The load on the stepping motor. At low revolutions per minute, the stepping motor (1) offers higher torque as compared with the known DC motors, whereas it also offers high revolutions per minute, although with comparatively low torque, sufficient for rapid advance and retraction of the plungers (2).

Abstract: The invention is directed to a piston or plunger (1) for a material delivery system (10) and a delivery system (10), such as a cartridge delivery system or syringe for storage and dispensing of a viscous or pasty material, in which the system includes a piston or plunger (1). The piston or plunger (1) is preferably provided for a unit dose dental capsule for the direct placement of a dental material, such as a light-curable tooth filling material, into a desired location.

Abstract: A dental impression tray includes a body having a channel for receiving a quantity of curable thermoset dental impression material and an electrically resistive heating element provided within the channel, in order to use heat to accelerate the curing of the dental impression material. In some embodiments, the tray includes a liner positioned on the heating element in the channel, where the liner has low thermal conductivity. A system for forming a dental impression includes a quantity of thermoset dental impression material, and the tray. A method for using the tray includes the step of turning on the heating element after the tray is positioned within a patient's mouth, to accelerate the curing of the dental impression material.

Abstract: The invention relates to a two-component addition-cured silicon impression compound, comprising the following when both components are mixed: (a) between 1 and 35 wt. % of at least one organopolysiloxane comprising at least two unsaturated groups in the molecule; (b) between 1 and 10 wt. % of at least one organohydrogenpolysiloxane comprising at least two SiH groups in the molecule; (c) between 0.00005 and 0.05 wt. % of at least one platinum catalyst, calculated as elementary platinum; (d) between 4 and 10 wt. % of at least one liquid paraffin or at least one white mineral oil, or of a mixture of at least one liquid paraffin and at least one white mineral oil; (e) between 50 and 90 wt. % of at least one filler, each respective percentage relating to the total weight of the silicon impression compound. According to the invention, one of the components before being mixed with the other component has a Brookfield viscosity ranging between 800 and 2000 Pa*s.

Abstract: The present invention relates to the mixing of dental materials in a container and/or to the dispensing of a dental material or a mixture of dental materials from a container. In particular, the present invention relates to a dental material processing device such as a mixer and/or dispenser for mixing and/or dispensing dental material(s) from a container or in a container, respectively, a method of communication between a dental material processing device for mixing and/or dispensing dental material(s) and at least one separable information device, an information device for use in mixing and/or dispensing dental material(s) with a dental material processing device, and a system comprising a dental material processing device and at least one information device.

Abstract: A process for the dimensionally-true sintering of ceramic pre-shaped items, in which the firing material is resting during sintering on supporting devices, not coated with metal, which independently adapt to the shrinkage dimensions which occur during the firing process or allow a contact-free support of the pre-shaped items.

Abstract: A dental impression tray comprises a trough for receiving dental impression material and at least one retainer on at least a portion of an inner surface of the trough. The retainer comprises a plurality of anchoring elements, each of which comprises a first end, a second end, and an arc between the first and second ends. The first and second ends of the anchoring elements are connected to the inner surface of the trough, and the arcs project from the inner surface of the trough. The loop material of a hook and loop mechanical fastener is a particularly useful retainer.