SMC ELECTRICAL PRODUCTS, INC. Patent applications |
Patent application number | Title | Published |
20130193991 | High Voltage Sensing Capacitor and Indicator Device - A high-voltage sensing capacitor as an interface apparatus that may be used to attach an indicator unit to a high-voltage AC electrical bus and to provide safety to maintenance personnel. The high-impedance nature of the sensing capacitor effectively isolates the indicator unit from the high-voltage source to which it is connected. The sensing capacitor can be directly mounted between a high-voltage busbar and an indicator unit to provide visual and/or audible alerts to maintenance personnel when high voltage conditions are detected on the busbar. The sensing capacitor is comprised of a portable, unitary capacitive structure that includes a molded insulator body encapsulating two electrodes. The electrodes only partially or incompletely overlap within the insulator body. The electrode spacing and configuration is structured to provide a deliberate amount of coupling between the two electrodes in the presence of an AC electric field. | 08-01-2013 |
20130043891 | High Voltage Sensing Capacitor and Indicator Device - A high-voltage sensing capacitor as an interface apparatus that may be used to attach an indicator unit to a high-voltage AC electrical bus and to provide safety to maintenance personnel. The high-impedance nature of the sensing capacitor effectively isolates the indicator unit from the high-voltage source to which it is connected. The sensing capacitor can be directly mounted between a high-voltage busbar and an indicator unit to provide visual and/or audible alerts to maintenance personnel when high voltage conditions are detected on the busbar. The sensing capacitor is comprised of a portable, unitary capacitive structure that includes a molded insulator body encapsulating two electrodes. The electrodes only partially or incompletely overlap within the insulator body. The electrode spacing and configuration is structured to provide a deliberate amount of coupling between the two electrodes in the presence of an AC electric field. | 02-21-2013 |
20110286165 | ARC Resistant Electrical Enclosure - Methods, systems, apparatus and devices for an arc resistant electrical enclosure that includes a duct system of adjacent pressure relief chambers separated by flame arresting ventilation partitions to provide a torturous mechanical maze to relieve internal pressure and extinguish internal hot flames within the flame arresting duct system prior to exiting the enclosure expelling gasses into the external environment. The adjacent partitioned pressure relief chambers for routing pressure and or flames through the duct system with ninety degree turns from one pressure relief chamber into the next adjacent pressure relief chamber. In an embodiment, a set of ventilation panels is located within one or more of the adjacent pressure relief chambers and each next pressure relief chamber can have a volume that is less than the volume in the preceding chamber. | 11-24-2011 |
20110121820 | HIGH VOLTAGE SENSING CAPACITOR AND INDICATOR DEVICE - A high-voltage sensing capacitor as an interface apparatus that may be used to attach an indicator unit to a high-voltage AC electrical bus and to provide safety to maintenance personnel. The high-impedance nature of the sensing capacitor effectively isolates the indicator unit from the high-voltage source to which it is connected. Multiple electrical phases can be interfaced using a plurality of such sensing capacitors. The sensing capacitor can be directly mounted to a high-voltage busbar. The indicator unit may provide visual and/or audible alerts to maintenance personnel when high voltage conditions are detected on the busbar by the sensing capacitor. The sensing capacitor is comprised of a portable, unitary capacitive structure that includes a molded insulator body encapsulating two electrodes. The electrodes of the capacitor only partially or incompletely overlap within the insulator body. The electrode spacing and configuration is structured to provide a deliberate amount of coupling between the two electrodes in the presence of an AC electric field. Because of rules governing Abstracts, this Abstract should not be used to construe the claims in this patent application. | 05-26-2011 |
20080303469 | Variable Frequency Drive System Apparatus and Method for Reduced Ground Leakage Current and Transistor Protection - As applications of variable frequency drives (VFD) ( | 12-11-2008 |