摘要:
An apparatus and method for detecting arc faults that have reduced susceptibility to nuisance tripping. The apparatus includes a current sensor, an input sense circuit, an arcing sense circuit, a power supply, a tripping (firing) circuit, a processor, and an electromechanical interface. The current sensor monitors a power input comprising an AC current, and provides high frequency components of the. AC current to the input sense circuit. The input sense circuit filters and rectifies the AC signal, and provides the rectified signal to the arcing sense circuit. The arcing sense circuit provides a voltage level accumulated over a predetermined time period, and digital signals indicative of possible electrical arcing occurring during the sampling period, to the processor. The processor measures the voltage level, stores information relating to measured voltages and the digital signals, and processes the stored information using one or more algorithms, thereby determining whether the signals resulted from an arc fault or a nuisance load. In the event the signals resulted from an arc fault, the processor activates the firing circuit to trip the electromechanical interface, thereby interrupting the power output to the load.
摘要:
A nozzle assembly operable to secure a porous disc within a welding torch. The nozzle assembly comprises a front nozzle member and a rear nozzle member. The front nozzle member is securable to the rear nozzle member. The porous disc is captured between the front nozzle member and the rear nozzle member when the front nozzle member is secured to the rear nozzle member.
摘要:
A pharmaceutical composition comprising 4-(3′-chloro-4′-fluoroanilino)-7-methoxy-6-(3-morpholinopropoxy)quinazoline or a pharmaceutically acceptable salt thereof (the Agent) and a water-soluble cellulose ether or an ester of a water-soluble cellulose ether. The water-soluble cellulose ether or ester of a water-soluble cellulose ether present in the composition inhibits the rate of precipitation of the Agent from solution.
摘要:
The present invention is directed towards increasing the conductivity of the electrical lead material in the read head portion of a magnetic head, such that thinner electrical leads can be fabricated while the current carrying capacity of the leads is maintained. This increase in electrical lead conductivity is accomplished by fabricating the electrical lead upon an epitaxially matched seed layer, such that the crystalline microstructure of the electrical lead material has fewer grain boundaries, whereby the electrical conductivity of the lead material is increased. In a preferred embodiment, the electrical lead material is comprised of Rh, which has an FCC crystal structure, and the seed layer is comprised of a metal, or metal alloy having a BCC crystal structure with unit cell lattice constant dimensions that satisfy the relationship that abcc is approximately equal to 0.816afcc. In various embodiments, the seed layer is comprised of VMo or VW.
摘要:
In the present method for manufacturing a magnetic write head a focused ion beam (FIB) tool is utilized to mill the side edges of a P2 pole, in order to provide a narrowed track width. Prior to milling, a thin film layer of material is deposited upon the P2 pole tip. The milling boxes of the FIB tool are properly aligned upon the layer with reference to the location of the P2 pole tip. Milling of the lateral edges of the P2 pole tip is then conducted to the appropriate depth, and the layer of material is removed. The resulting P2 pole tip has sharp lateral edges, rather than the rounded edges that are produced in prior art FIB processing methods that do not utilize the thin film layer. In a preferred implementation, the FIB tool is utilized first to deposit the thin film layer and thereafter to perform the milling operation.
摘要:
Novel amidoalkyl-piperidine and amidoalkyl-piperazine derivatives of the general formula wherein all variables are as described herein, useful in the treatment of disorders, such as depression, dementia, schizophrenia, bipolar disorders, anxiety, emesis, acute or neuropathic pain, itching, migraine and movement disorders.
摘要:
A method for imposing and rendering image data. The method formatting the image data for a surface of a media sheet in an output device space and including receiving one or more page description files defining one or more objects to be located on the surface of the media sheet, receiving a job ticket defining a layout of the objects on the surface in a sheet-defined space. Prior to ripping, the layout of the objects is transformed into output device space including rotation or translation of the objects. The objects are ripped creating raster data that is oriented in output device space. The raster data is blitted in blocks without shifting the raster data.
摘要:
An automated analyzer for reagent cards having a leading end, a trailing end and a length between the leading end and the trailing end comprises a travel surface assembly having a card travel surface and an edge. A test analyzing mechanism is adjacent to the travel surface, and a waste receptacle is adjacent to the edge below the travel surface. The waste receptacle has a side and a waste cavity. A ramp member positioned below the travel surface has an end and a sloped surface, and is movable between an extended position where the sloped surface extends into the waste cavity, and a retracted position where the end is spaced from the side a distance greater than the length of the reagent card. A moving mechanism operably coupled with the ramp member is configured to move the ramp member between the extended position and the retracted position.
摘要:
A base support for mounting a hoisting apparatus over an opening. The base support comprises a plurality of elongated framing members coupled to each other in a closed polygonal arrangement sized and shaped to surround the opening. The polygonal arrangement has a plurality of corners where two of the framing members meet. The base support also comprises a hoisting apparatus bracket securable to at least one of the framing members and having a hoisting apparatus mounting assembly for mounting the hoisting apparatus thereto.