Abstract: An electric arc welder and a method for performing a pulse welding process producing reduced spatter. The welder produces a current between an advancing electrode and a workpiece. The welder includes a short-detecting capability for detecting a short condition upon occurrence of a short circuit between the advancing electrode and the workpiece. The welder may also include a switching module in the welding circuit path of the welder having an electrical switch and a resistive path. Times of occurrence of short intervals can be tracked and a blanking signal can be generated based on the tracked short intervals to anticipate a next short interval in a next pulse period of the pulsed welding process. The blanking signal can be used to reduce a welding current in the welding circuit path by introducing additional resistance into the welding circuit path via the switching module, for example.

Abstract: A system and method for installing device drivers or application software on equipment used in brazing, cladding, building up, filling, hard-facing overlaying, joining or welding operations is provided. The system includes a first device and a second device. The first device and the second device communicate over a communication system to monitor and/or control the operations. The second device transmits device software (e.g., device drivers and/or application software) or a link to the device software to the first device over the communication system to facilitate the monitoring and/or controlling of the operations. In some embodiments, the first device, which can emulate a host, requests the device software from the second device after a determination that the device software needs to be uploaded. The second device can emulate a peripheral such as a disk drive, a serial port device, DVD drive, or a CD ROM.

Abstract: A method and system to weld or join workpieces employing a high intensity energy source to create a weld puddle and at least one resistive filler wire which is heated to at or near its melting temperature and deposited into the weld puddle.

Abstract: A method and system to weld or join workpieces employing a high intensity energy source to create a weld puddle and at least one resistive filler wire which is heated to at or near its melting temperature and deposited into the weld puddle.

Abstract: A torch head in a welding system for applying a weld to a workpiece, the torch head including a torch head body having a first side, a second side, an inward side and a outer side, the torch head body further including a lower surface and a top surface forming a solid; the torch body defining a slot extending from the lower surface to the top surface on the first side; an electrode assembly including an electrode mounted on the torch body, the electrode extending downward relative to the lower surface of the torch body; a wire adjustment assembly including a bracket supporting a wire guide that receives a wire from a wire supply; the bracket being attached to a rack and pinion supported within the slot, the rack being located inward of the pinion and slideable within the slot, the pinion being rotatable within the slot, and engaged with the rack to move the bracket vertically upon rotation of the pinion to adjust the vertical position of the wire.

Abstract: A system and method for installing device drivers or application software on equipment used in brazing, cladding, building up, filling, hard-facing overlaying, joining or welding operations is provided. The system includes a first device and a second device. The first device and the second device communicate over a communication system to monitor and/or control the operations. The second device transmits device software (e.g., device drivers and/or application software) or a link to the device software to the first device over the communication system to facilitate the monitoring and/or controlling of the operations. In some embodiments, the first device, which can emulate a host, requests the device software from the second device after a determination that the device software needs to be uploaded. The second device can emulate a peripheral such as a disk drive, a serial port device, DVD drive, or a CD ROM.

Abstract: An arc welding system includes a power converter that outputs a welding waveform based on a welding signal. The power converter is operatively connected to a welding torch to create an electrical arc between the welding torch and a workpiece based on the welding waveform. The arc transfers at least one drop of molten material onto the workpiece. The arc welding system also includes magnetic field system includes a magnetic field generator that generates a magnetic field based a magnetic steering signal and a controller that is operatively connected to the power converter and the magnetic field controller. The controller controls operations of the power converter according to the welding signal and simultaneously controls the magnetic field system according to the magnetic steering signal. The welding signal includes a peak portion and a background portion for each waveform cycle, and the magnetic steering signal includes a peak portion.

Abstract: An arc welding system includes a welding torch, an electrode, and a power supply having a switching-type power converter connected to the torch. A parallel state-based controller is connected to the power converter and provides a waveform control signal thereto for controlling its operations. The controller generates a motion control signal for controlling movements of the electrode and/or the torch. A sensor senses welding voltage or welding current. A memory stores a welding state table comprising sequential control states, and stores a motion control system state table comprising further sequential control states. The welding waveform is defined in the welding state table. The controller controls the operations of the power converter through the waveform control signal according to the welding state table, simultaneously adjusting the motion control signal according to the motion control system state table. The controller transitions between control states according to the signal received from the sensor.

Abstract: A method of and system for steering an arc and/or torch head in a weld joint is provided. The system includes a torch head that creates an arc in a weld groove formed in at least one workpiece. The system also includes a control unit that includes a feedback system that monitors at least one of a voltage of the arc, a current of the arc, a power output of the torch power supply, and a contact tip to weld distance. The control unit outputs a feedback signal corresponding to the monitoring. The control unit also includes a comparison circuit that compares the feedback signal with at least one predetermined value corresponding to a position of at least one of the arc and the torch head in the weld groove. The control unit further includes an arc steering system that outputs a steering signal based on the comparison.

Abstract: A method and system to weld or join workpieces employing a high intensity energy source to create a weld puddle and at least one resistive filler wire which is heated to at or near its melting temperature and deposited into the weld puddle.

Abstract: A method for administering performance of a contract over a data network includes storing a lien waiver and receiving an application for payment over the data network from a contract participant based on performance under the contract. The stored lien waiver is retrieved and sent to the participant via the data network upon approval of the application for payment. The at least one data tag may be included in the lien waiver prior to storing the lien waiver.

Abstract: This invention relates to a method of optical correction of field position distortions created by galvano motor scanning heads.

Abstract: An electric arc welder and a method for performing a pulse welding process producing reduced spatter. The welder produces a current between an advancing electrode and a workpiece. The welder includes a short-detecting capability for detecting a short condition upon occurrence of a short circuit between the advancing electrode and the workpiece. The welder may also include a switching module in the welding circuit path of the welder having an electrical switch and a resistive path. Times of occurrence of short intervals can be tracked and a blanking signal can be generated based on the tracked short intervals to anticipate a next short interval in a next pulse period of the pulsed welding process. The blanking signal can be used to reduce a welding current in the welding circuit path by introducing additional resistance into the welding circuit path via the switching module, for example.

Abstract: A method for administering performance of a contract over a data network includes storing a lien waiver and receiving an application for payment over the data network from a contract participant based on performance under the contract. The stored lien waiver is retrieved and sent to the participant via the data network upon approval of the application for payment. The at least one data tag may be included in the lien waiver prior to storing the lien waiver.

Abstract: A method for administering performance of a contract over a data network includes storing a lien waiver and receiving an application for payment over the data network from a contract participant based on performance under the contract. The stored lien waiver is retrieved and sent to the participant via the data network upon approval of the application for payment. The at least one data tag may be included in the lien waiver prior to storing the lien waiver.

Abstract: Sensing moving entities includes transmitting a stepped-frequency radar signal including multiple frequencies through a wall from a first side of the wall to a second side of the wall. Portions of the radar signal that are reflected by entities located beyond the second side of the wall are detected. The reflected portions are processed to generate processed data including information associated with frequency shifts between the transmitted signal and the detected signal. The processed data is analyzed to determine if reflected portions are associated with moving entities.

Abstract: This invention relates to a method of optical correction of field position distortions created by galvano motor scanning heads.

Abstract: Techniques for detecting contraband are described, as are techniques for generating an image of living tissue. A location of interest relative to a target space is received, and a radar signal is transmitted in the direction of the location of interest. Portions of the radar signal are detected with multiple receiving structures. The detected portions are processed to generate information corresponding to dielectric or loss properties, the properties corresponding to particular positions within the target space. A determination is made as to whether contraband is present in the target space based on the determined properties.

Abstract: The invention relates to an agent with increased thermal stability comprising a core and a coating layer characterized in that the core comprises at least one biologically active protein and that the coating layer comprises a micronized product from leguminous plants, a method for the production of this agent as well as the use of a micronized product from leguminous plants to increase the thermal stability of biologically active proteins in methods for the production of a granulated product as well as in methods for the production of animal feed, food and pharmaceuticals.

Abstract: An ambient effects system and method of operation is described in which regions (30, 38) of a game or movie screen (10) are analysed (32, 40). The result of the analysis is then processed using logical, heuristic, or a combination of both techniques to determine a content related event. An ambient effects script (34, 36, 48) is then selected (if pre-authored) or generated (if not pre-authored) on the basis of the determination, and provided to the system to render appropriate ambient effects throughout the users environment. Hence, immersive, ambient effects are enabled for media or game content created independently of, and without, the ambient effects system in mind.