Abstract: A cleaning trolley includes a base plate supported by rolling members; at least four upright hollow profiles for fixing cross walls arranged on the base plate, wherein each cross wall consists of two separate wall elements removably arranged back-to-back to each other and fixed by said upright hollow profiles; and an upper frame for securing the at least four upright hollow profiles. Further, the cleaning trolley may include a primary section and a secondary section, each section having a base plate supported by rolling members, wherein the primary section and the secondary section are removably connected by a connection mechanism, which connection mechanism contains a pedal pivotably attached to the bottom side of the base plate of the secondary section, and its actuation releases claws which in connection position are engaged with the primary section.

Abstract: The present invention refers to a cleaning trolley comprising a base plate supported by rolling members; at least four upright hollow profiles for fixing cross walls arranged on the base plate, wherein each cross wall consists of two separate wall elements removably arranged back-to-back to each other and fixed by said upright hollow profiles; and an upper frame for securing the at least four upright hollow profiles. Further, the invention provides a cleaning trolley comprising a primary section and a secondary section, each section having a base plate supported by rolling members, wherein the primary section and the secondary section are removably connected by a connection mechanism, which connection mechanism contains a pedal pivotably attached to the bottom side of the base plate of the secondary section, and its actuation releases claws which in connection position are engaged with the primary section.

Abstract: A cleaning trolley includes a base plate supported by rolling members; at least four upright hollow profiles for fixing cross walls arranged on the base plate, wherein each cross wall consists of two separate wall elements removably arranged back-to-back to each other and fixed by said upright hollow profiles; and an upper frame for securing the at least four upright hollow profiles. Further, the cleaning trolley may include a primary section and a secondary section, each section having a base plate supported by rolling members, wherein the primary section and the secondary section are removably connected by a connection mechanism, which connection mechanism contains a pedal pivotably attached to the bottom side of the base plate of the secondary section, and its actuation releases claws which in connection position are engaged with the primary section.

Abstract: A power unit (e.g., inverter module) includes a housing and a switch attached to the housing. The switch may be configured to be electrically coupled to a remotely-mounted drive circuit through two or more wire leads. The power unit also includes a clamping circuit electrically coupled to terminals of the switch and in parallel with the switch. The clamping circuit may be disposed inside the housing or on an outer surface of the housing, and is configured to limit a voltage across the switch.

Abstract: A power unit (e.g., inverter module) includes a housing and a switch attached to the housing. The switch may be configured to be electrically coupled to a remotely-mounted drive circuit through two or more wire leads. The power unit also includes a clamping circuit electrically coupled to terminals of the switch and in parallel with the switch. The clamping circuit may be disposed inside the housing or on an outer surface of the housing, and is configured to limit a voltage across the switch.

Abstract: A single phase alkaline composition comprising by weight about 10 to about 25 percent of nonionic surfactant blend comprising a ratio of between about 1:1 to about 1:2 of alcohol ethoxylate:fatty alcohol alkoxylate, about 3-10% of at least one water soluble solvent, about 1-10% of a chelant, 2-12% of an alkalinity source, 0.5-2% of an anionic surfactant blend comprised of at least about 40-70% of a sulfosuccinate, the balance being water. Compositions of the invention are useful for removing hydrophobic soils or oils whether they are located on a hard surface or on a linen. A method of cleaning a hard surface is also disclosed comprising the steps of diluting the composition of the invention with water to about 1 to about 3 weight percent, applying the diluted composition to the surface, and wiping the surface, wherein the surface is substantially free of oil or residue and the surface is substantially free of corrosion.

Abstract: A glass-reinforced fiber or carbon-reinforced wind turbine blade having a suction side and a pressure side includes a tip portion adapted with an electric field control region disposed solely on or within the tip portion. The electric field control region is in electrical communication with or galvanically connected to an electric discharge conduction mechanism, wherein the electric field control region and the electric discharge conduction mechanism together operate to protect a wind turbine and its associated blade(s) from damage due to a lightning strike at the tip of the wind turbine blade(s) by controlling an electric field at the tip portion(s) caused by the lightning strike.

Abstract: A single phase alkaline composition comprising by weight about 10 to about 25 percent of nonionic surfactant blend comprising a ratio of between about 1:1 to about 1:2 of alcohol ethoxylate:fatty alcohol alkoxylate, about 3-10% of at least one water soluble solvent, about 1-10% of a chelant, 2-12% of an alkalinity source, 0.5-2% of an anionic surfactant blend comprised of at least about 40-70% of a sulfosuccinate, the balance being water. Compositions of the invention are useful for re-moving hydrophobic soils or oils whether they are located on a hard surface or on a linen. A method of cleaning a hard surface is also disclosed comprising the steps of diluting the composition of the invention with water to about 1 to about 3 weight percent, applying the diluted composition to the surface, and wiping the surface, wherein the surface is substantially free of oil or residue and the surface is substantially free of corrosion.

Abstract: A calibration error correction device for an optical instrument includes a detector operable to detect a position of a focusing lens of an optical instrument along a mechanical path of the focusing lens. A line of sight through an image plane of the optical instrument and the focusing lens at a present position defines an actual viewing direction. The device also includes a memory configured to store viewing direction errors specifying a deviation between a known theoretical viewing direction and the actual viewing direction associated with a plurality of different positions of the focusing lens along the mechanical path and an indicator of at least one value indicative of the actual viewing direction based on the theoretical viewing direction and the viewing direction errors at each of the different positions of the focusing lens along the mechanical path.

Abstract: The present invention refers to a cleaning trolley comprising a base plate supported by rolling members; at least four upright hollow profiles for fixing cross walls arranged on the base plate, wherein each cross wall consists of two separate wall elements removably arranged back-to-back to each other and fixed by said upright hollow profiles; and an upper frame for securing the at least four upright hollow profiles. Further, the invention provides a cleaning trolley comprising a primary section and a secondary section, each section having a base plate supported by rolling members, wherein the primary section and the secondary section are removably connected by a connection mechanism, which connection mechanism contains a pedal pivotably attached to the bottom side of the base plate of the secondary section, and its actuation releases claws which in connection position are engaged with the primary section.

Abstract: A glass-reinforced fiber or carbon-reinforced wind turbine blade having a suction side and a pressure side includes a tip portion adapted with an electric field control region disposed solely on or within the tip portion. The electric field control region is in electrical communication with or galvanically connected to an electric discharge conduction mechanism, wherein the electric field control region and the electric discharge conduction mechanism together operate to protect a wind turbine and its associated blade(s) from damage due to a lightning strike at the tip of the wind turbine blade(s) by controlling an electric field at the tip portion(s) caused by the lightning strike.

Abstract: Floor finishes are stripped or deep scrubbed using a floor stripper/cleaner composition containing a phenyl-substituted alkyl alcohol, an oxygenated swelling solvent other than the phenyl-substituted alkyl alcohol, water, sufficient coupler so that the composition has a single phase, and sufficient saponification agent comprising the reaction product of a fatty acid or fatty ester with a stoichiometric excess of an alkali metal hydroxide or ammonium hydroxide so that the composition has an alkaline pH and has a reduced oily residue after stripping when compared to an otherwise similar composition that does not contain the saponification agent. The composition is useful for removing ultradurable (e.g., crosslinked) floor finishes, especially on flooring substrates that are susceptible to chemical attack.

Abstract: A calibration error correction device for an optical instrument includes a detector operable to detect a position of a focusing lens of an optical instrument along a mechanical path of the focusing lens. A line of sight through an image plane of the optical instrument and the focusing lens at a present position defines an actual viewing direction. The device also includes a memory configured to store viewing direction errors specifying a deviation between a known theoretical viewing direction and the actual viewing direction associated with a plurality of different positions of the focusing lens along the mechanical path and an indicator of at least one value indicative of the actual viewing direction based on the theoretical viewing direction and the viewing direction errors at each of the different positions of the focusing lens along the mechanical path.

Abstract: Floor finishes are stripped or deep scrubbed using a floor stripper/cleaner composition containing a phenyl-substituted alkyl alcohol, an oxygenated swelling solvent other than the phenyl-substituted alkyl alcohol, water, sufficient coupler so that the composition has a single phase, and sufficient saponification agent comprising the reaction product of a fatty acid or fatty ester with a stoichiometric excess of an alkali metal hydroxide or ammonium hydroxide so that the composition has an alkaline pH and has a reduced oily residue after stripping when compared to an otherwise similar composition that does not contain the saponification agent. The composition is useful for removing ultradurable (e.g., crosslinked) floor finishes, especially on flooring substrates that are susceptible to chemical attack.