Patent application number | Description | Published |
20100029531 | Nonflammable compositions comprising fluorinated compounds and use of these compositions - The invention relates to non-flammable compositions comprising fluorinated compounds selected from the group consisting of hydrofluoroalkanes, hydrofluoroalkenes, partially or perfluorinated aromatic compounds, hydrofluoroethers or fluoroketones, 1,2-dichloroethylene, especially trans-1,2-dichloroethylene, and a stabilizer. These non-flammable compositions which preferably contain 1,1,1,3,3-pentafluorobutane, can be used especially as solvents for cleaning and defluxing electronic components and for degreasing metals. The compositions further may comprise a propellant, e.g. 1,1,1,2-tetrafluoroethane. These compositions are especially suitable as flushing agent. | 02-04-2010 |
20130079267 | Nonflammable compositions comprising fluorinated compounds and use of these compositions - Nonflammable compositions comprising fluorinated compounds selected from the group consisting of hydrofluoroalkanes, hydrofluoroalkenes, partially or perfluorinated aromatic compounds, hydrofluoroethers, and fluoroketones; 1,2-dichloroethylene, especially trans-1,2-dichloroethylene; and a stabilizer. These non-flammable compositions which preferably contain 1,1,1,3,3-pentafluorobutane, can be used especially as solvents for cleaning and defluxing electronic components and for degreasing metals. The compositions further may comprise a propellant, e.g. 1,1,1,2-tetrafluoroethane. These compositions are especially suitable as flushing agent. | 03-28-2013 |
Patent application number | Description | Published |
20100159809 | Polishing device with potary joint - A polishing device for polishing optical lenses having a tiltable base part for directly or indirectly receiving a polishing plate, which base part is connected to a polishing spindle having an axis of rotation D in order to be rotationally driven, wherein a rotary joint for supplying a polishing agent is provided, which rotary joint is at least partly arranged opposite said polishing spindle, relative to the base part, and a coupling element is provided by means of which the rotary joint can be detachably push-fitted or clipped onto a polishing spindle. A method for polishing selected zones of aspherical lenses which are not rotationally symmetric using a polishing plate which is guided by a polishing spindle so as to be tiltable, wherein during polishing, a polishing agent is introduced between said polishing plate and the lens via a rotary joint arranged between said polishing spindle and said polishing plate. | 06-24-2010 |
20100184361 | Polishing head and tool change arm for a polishing head - A polishing head for use in a polishing machine for optical surfaces, having an axis of rotation and a base body having a holding structure intended to be arranged at a polishing spindle and having a transport element intended to be held at a tool change arm, the transport element being positionable against a holding element of the tool change arm in the axial direction relative to the axis of rotation in order to perform a tool change, wherein at least one locking element is provided which can be positioned against the tool change arm in the circumferential direction U such that a positive and/or non-positive joint results. A tool change arm of a polishing machine for optical surfaces, comprising a holding element intended to hold a polishing head having an axis of rotation, the holding element being positionable against a transport element of the polishing head in the axial direction in order to perform a tool change, wherein at least one guiding part is provided which, in relation to the polishing head, can be positioned against the polishing head in the circumferential direction U relative to the axis of rotation such that a positive and/or non-positive joint results. | 07-22-2010 |
20100224039 | Lathe for manufacturing ophthalmic lenses made of plastic - A turning machine for producing non rotationally symmetric surfaces of synthetic spectacle lenses, having a support plane E, a machine bed made of cast iron with a width b | 09-09-2010 |
20110050005 | LINEAR DRIVE FOR A MACHINE TOOL AND METHOD FOR MOVING A TOOL CARRIAGE - The invention relates to a linear drive for a machine tool having a housing, having a carriage, which is mounted so it is axially movable in the housing via two bearings, and has a central axis and a length, and having at least one first motor, having a first motor element and a second motor element, wherein said first motor element is disposed on said carriage and said second motor element is disposed on said housing, wherein said first motor element is implemented on said carriage as a primary part and said second motor element is implemented on said housing as a secondary part. Furthermore, the invention relates to a method for moving a carriage for a lathe tool of a highly-dynamic machine tool employing a crossed roller bearing for mounting the carriage, wherein all roller bodies of said crossed roller bearing are always operationally linked to a carriage-side bearing surface, and said carriage is driven at an oscillation frequency of at least 50 Hz, in particular between 60 Hz and 200 Hz. | 03-03-2011 |
20130005227 | POLISHING HEAD AND TOOL CHANGE ARM FOR A POLISHING HEAD - A polishing head for use in a polishing machine for optical surfaces, having an axis of rotation and a base body having a holding structure intended to be arranged at a polishing spindle and having a transport element intended to be held at a tool change arm, the transport element being positionable against a holding element of the tool change arm in order to perform a tool change, wherein at least one locking element is provided which can be positioned against the tool change arm such that a positive and/or non-positive joint results. | 01-03-2013 |
20130072090 | Polishing Device With Rotary Transmission Leadthrough - A polishing device for zone polishing of optical lenses with a tilting base part for direct or indirect holding of a polishing pad, wherein the base part for driving purposes is rotationally driven and connected to a spindle shaft, rotationally mounted, of a polishing spindle, and a rotary leadthrough is provided, by which the feeding of polishing compound in a polishing compound channel of the base part is assured, wherein the rotary leadthrough is directly or indirectly arranged on the spindle shaft and the base part can tilt relative to the rotary leadthrough. The rotary leadthrough stands in a flow connection with the base part via a flexible fluid connection. | 03-21-2013 |
20130154399 | LINEAR DRIVE FOR A MACHINE TOOL AND METHOD FOR MOVING A TOOL CARRIAGE - A linear drive for a machine tool having a housing, having a carriage, which is mounted so it is axially movable in the housing via two bearings, and has a central axis and a length, and having at least one first motor, having a first motor element and a second motor element, wherein said first motor element is disposed on the carriage and the second motor element is disposed on the housing, wherein the first motor element is implemented on the carriage as a primary part and the second motor element is implemented on the housing as a secondary part. A method for moving a carriage for a lathe tool of a highly-dynamic machine tool employing a crossed roller bearing for mounting the carriage, wherein all roller bodies of the crossed roller bearing are always operationally linked to a carriage-side bearing surface, and the carriage is driven at an oscillation frequency of at least 50 Hz, in particular between 60 Hz and 200 Hz. | 06-20-2013 |
20130270759 | DEVICE FOR BLOCKING EYEGLASS LENSES - A device for blocking eyeglass lenses onto blocks using a bonding mass, by which the eyeglass lens is connected to the block in a form-fit and/or force-closed manner, having several stations, between which the eyeglass lens and/or the block is transported, at least one blocking station, in which the block is connected to the eyeglass lens using the bonding mass, a transport arm having a retaining head arranged thereon for positioning the eyeglass lens in the blocking station, wherein the transport arm is designed as a pivot arm and has at least one pivot axis (S | 10-17-2013 |
20130276601 | WORK SPINDLE HAVING A SOLID-BODY JOINT - A subassembly with a supporting element for a machine bed of a lathe, and of a machining unit which is arranged on the supporting element and has a machining axis, wherein a solid-body joint, via which the machining unit is arranged in a movable manner on the supporting element, is provided. A lathe for plastics spectacle lenses, having a machine bed, having a tool mount or workpiece mount which is arranged at least indirectly on the machine bed, and having a subassembly which is arranged at least indirectly on the machine bed, wherein the workpiece and the tool can be oriented in relation to one another via the solid-body joint. | 10-24-2013 |
20140038494 | DEVICE AND METHOD FOR MACHINING OF AN OPTICAL LENS - A device and a method for polishing of an optical lens by means of rotary tool are proposed, a fixture for the lens being pivotable around a pivoting axis transversely to the axis of rotation by means of a push-rod adjustment and being pivotable up out of a machining position such that the lens can be changed from overhead. This allows a compact structure and easy changing of the lens. | 02-06-2014 |
20140073227 | DEVICE AND METHOD FOR MACHINING OF AN OPTICAL LENS - A device and a method for machining, especially for polishing of an optical lens, are proposed, there being both a lens changing apparatus and also a separate tool changing apparatus. The lens changing apparatus is located between a working space and a conveyor apparatus for lenses and is pivotally mounted around a horizontal axis. The tool changing apparatus is located laterally next to the working space. | 03-13-2014 |
20140315472 | METHOD AND DEVICE FOR BLOCKING EYEGLASS LENSES - A blocking device and a method for blocking of eyeglass lenses on blocking pieces with a base body, with a blocking piece receiver which is located on the base body for the blocking piece which is to be attached to the eyeglass lens and with a positioning unit which is located on the base body for aligning and holding the eyeglass lens which is to be blocked, the blocking piece receiver and the positioning unit can be fixed on the eyeglass lens by activation being movable relative to one another via a lifting axis, the approach motion between the positioning unit and the blocking piece receiver being limited in the direction of the lifting axis by an adjustable stop means in at least two positions. | 10-23-2014 |