Abstract: The present invention relates to photovoltaic roofing systems in which photovoltaic elements are disposed upon roofing elements such as shingles, tiles, shakes or slates. For example, in one embodiment, the present invention provides a photovoltaic roofing system comprising: a first plurality of horizontally-arranged roofing elements; a bus bar batten system extending across the headlap regions of the first plurality of roofing elements, the bus bar batten system comprising one or more rigid supports and an electrical interconnection system; a first plurality of photovoltaic elements, each disposed on a butt region of one of the first plurality of roofing elements, each operatively engaged with the electrical interconnection system of the bus bar batten system; and a second plurality of horizontally-arranged roofing elements disposed on the roof deck and covering the bus bar batten system and the headlap regions of the first plurality of horizontally-arranged roofing elements.

Abstract: The present invention relates to photovoltaic roofing systems in which photovoltaic elements are disposed upon roofing elements such as shingles, tiles, shakes or slates. For example, in one embodiment, the present invention provides a photovoltaic roofing system comprising: a first plurality of horizontally-arranged roofing elements; a bus bar batten system extending across the headlap regions of the first plurality of roofing elements, the bus bar batten system comprising one or more rigid supports and an electrical interconnection system; a first plurality of photovoltaic elements, each disposed on a butt region of one of the first plurality of roofing elements, each operatively engaged with the electrical interconnection system of the bus bar batten system; and a second plurality of horizontally-arranged roofing elements disposed on the roof deck and covering the bus bar batten system and the headlap regions of the first plurality of horizontally-arranged roofing elements.

Abstract: The present invention relates generally to photovoltaic systems. The present invention relates more particularly to photovoltaic roofing systems in which photovoltaic elements are disposed upon roofing elements such as shingles, tiles, shakes or slates.

Abstract: The present invention relates generally to photovoltaic systems. The present invention relates more particularly to photovoltaic roofing systems in which photovoltaic elements are disposed upon roofing elements such as shingles, tiles, shakes or slates.

Abstract: Production-worthy method and system comprising two computer-based subsystems for determining temperature of an irradiant mass movable through process means in a hostile environment exemplified as coke guide and coke oven in a battery of ovens. System is usable in other industries such as at cement kilns and the like. First subsystem which is carried by a movable coke guide/door machine, includes one or more coke guide pyrometers arranged vertically, each with a sighting window monitor to detect optical errors, an onboard computerized and cooled electronics package for acquiring and processing temperature data and automatically detecting same for pyrometer drift and optical errors, and automatically correcting for these errors, and further including a plug-in portable terminal with a printer.

Abstract: Coke guide and coke oven infrared pyrometer degrading is minimized to continuously permit better accuracy and reliability in hostile environment of coke mass and heat, dust and/or dirt present in many coke plant areas. These benefits are obtained using production-worthy pyrometer equipment having a purged pyrometer with any of three window cleanliness monitors to determine errors and automatically correcting for same through self-calibration.

Abstract: Repetitive defect signals are produced, for example, by bar or rod inspection equipment whenever any one of plural roll sets in a rolling mill develops a roll crack. Defect signal repetitive rate differs for each roll's relative speed. Selective correlator electronics process the defect signals with plural repetitive rates and produce an output signal indicative of which roll set in the mill has a cracked roll.