Abstract: Systems and methods are disclosed for welding systems employing a welding cable to provide welding power, communication signals, and wire feeder power to the wire feeder, and a single conductor wire feeder power and communication cable coupling the welding power supply to the wire feeder via dedicated connection circuitry in both the welding power supply and the wire feeder.

Abstract: Apparatuses, systems, and/or methods for configuring and/or reconfiguring welding-type power sockets and/or welding-type plugs are disclosed. In some examples, welding-type power sockets and/or welding-type plugs may be configurable (and/or reconfigurable) through custom socket inserts, socket connectors, plug adapters, and plug receptacles.

Abstract: Welding power supplies, wire feeders, and systems to measure a weld circuit resistance via communications over the weld circuit are disclosed. An example welding-type power supply includes: a power converter configured to: convert input power to output a current pulse via a weld circuit; and convert the input power to output welding-type power via the weld circuit; a voltage monitor configured to measure a power supply output voltage of the current pulse; a receiver circuit configured to receive, via the weld circuit, a communication comprising a second voltage measurement; and a controller configured to: determine a resistance of a portion of the weld circuit based on the power supply output voltage measurement, the second voltage measurement, and a weld circuit current measurement; and control the power converter to convert the input power to output the welding-type power based on a weld voltage setpoint and the impedance.

Abstract: Welding power supplies, wire feeders, and systems to measure a weld circuit resistance via communications over the weld circuit are disclosed. An example welding-type power supply includes: a power converter configured to: convert input power to output a current pulse via a weld circuit; and convert the input power to output welding-type power via the weld circuit; a voltage monitor configured to measure a power supply output voltage of the current pulse; a receiver circuit configured to receive, via the weld circuit, a communication comprising a second voltage measurement; and a controller configured to: determine a resistance of a portion of the weld circuit based on the power supply output voltage measurement, the second voltage measurement, and a weld circuit current measurement; and control the power converter to convert the input power to output the welding-type power based on a weld voltage setpoint and the impedance.

Abstract: An organ perfusion apparatus may include at least two tubes connected to an organ or tissue. A method of perfusing an organ or tissue may include connecting a first end of each of the at least two tubes to an organ or tissue, applying a fluid motive force to a perfusion fluid in the two tubes to force the fluid through the two tubes into the organ or tissue, and perfusing the organ or tissue through the at least two tubes such that the fluid motive force, provided by, e.g., a pump, and backpressure generated by the organ or tissue, establishes a flow balance between the at least two tubes. The flow balance may be altered without altering the fluid motive force that is applied.

Abstract: Apparatuses, systems, and/or methods for configuring and/or reconfiguring welding-type power sockets and/or welding-type plugs are disclosed. In some examples, welding-type power sockets and/or welding-type plugs may be configurable (and/or reconfigurable) through custom socket inserts, socket connectors, plug adapters, and plug receptacles.

Abstract: Welding power supplies, wire feeders, and systems to measure a weld circuit resistance via communications over the weld circuit are disclosed. An example welding-type power supply includes: a power converter configured to: convert input power to output a current pulse via a weld circuit; and convert the input power to output welding-type power via the weld circuit; a voltage monitor configured to measure a power supply output voltage of the current pulse; a receiver circuit configured to receive, via the weld circuit, a communication comprising a second voltage measurement; and a controller configured to: determine a resistance of a portion of the weld circuit based on the power supply output voltage measurement, the second voltage measurement, and a weld circuit current measurement; and control the power converter to convert the input power to output the welding-type power based on a weld voltage setpoint and the impedance.

Abstract: An apparatus for at least one of storage, treatment, assessment and transport of an organ or tissue includes a coolant container configured to cool the organ or tissue, a perfusion circuit configured to perfuse the organ or tissue, and a sample compartment for holding a biological sample. Preferred apparatus has a first internal compartment under a first cover (lid) of the apparatus that includes the coolant container and the sample compartment. The apparatus can include a second internal compartment under a second cover (lid) of the apparatus, the second internal compartment including at least part of the perfusion circuit and a sample compartment.

Abstract: A perfusion apparatus including a perfusion circuit that perfuses an organ or tissue has a compartment that supports an organ or tissue during perfusion, an internal cover, and an external cover that closes the apparatus. A wall portion may extend substantially perpendicularly between the internal cover and the external cover to define a document compartment between the internal cover, the external cover and the wall portion. A tamper evident seal will not permit the external cover to open without creating a record of whether the external cover has been opened after the tamper evident seal has been activated.

Abstract: A perfusion apparatus includes a coolant container having a basin-receiving recess that is at least partly surrounded by an inner chamber; a basin that is shaped to fit within the basin-receiving recess of the coolant container; and a cradle that is shaped to accept an organ and fit within the basin. The basin-receiving recess of the coolant container, the basin and the cradle each have positioning elements that are oriented such that the cradle is keyed to fit within the basin and the basin is keyed to fit within the coolant container, each in a single predetermined orientation. The plurality of positioning elements on the basin may include a plurality of protrusions on an outer surface of the basin.

Abstract: The present invention is directed to a remotely controlled welding machine that uses serializing and modulating circuits to transfer modulated data packets to a welding power source across a weld cable. A transmitter transmits the data packets of desired welding operational parameters to a receiver disposed in the power source across a weld cable also designed to carry welding power from the power source to the wire feeder. The transmitter and other electronics of the wire feeder are constructed to use only a small amount of power which, preferably, is supplied by a DC power supply external to the wire feeder. The DC power supply is designed to provide power to the electronics of the wire feeder when the wire feeder is in a standby mode of operation.

Abstract: The present invention is directed to a system and method of remotely controlling a welding machine with command signals transmitted to the welding power source across a weld cable connecting the power source to a remote device, such a wire feeder. A transmitter transmits the control commands containing desired welding operational parameters to a receiver disposed in the power source across a weld cable also designed to carry welding power from the power source to the wire feeder.

Abstract: A perfusion apparatus including a perfusion circuit that perfuses an organ or tissue has a compartment that supports an organ or tissue during perfusion, an internal cover, and an external cover that closes the apparatus. A wall portion may extend substantially perpendicularly between the internal cover and the external cover to define a document compartment between the internal cover, the external cover and the wall portion. A tamper evident seal will not permit the external cover to open without creating a record of whether the external cover has been opened after the tamper evident seal has been activated.

Abstract: A perfusion apparatus includes a coolant container having a basin-receiving recess that is at least partly surrounded by an inner chamber; a basin that is shaped to fit within the basin-receiving recess of the coolant container; and a cradle that is shaped to accept an organ and fit within the basin. The basin-receiving recess of the coolant container, the basin and the cradle each have positioning elements that are oriented such that the cradle is keyed to fit within the basin and the basin is keyed to fit within the coolant container, each in a single predetermined orientation. The plurality of positioning elements on the basin may include a plurality of protrusions on an outer surface of the basin.

Abstract: An apparatus for at least one of storage, treatment, assessment and transport of an organ or tissue includes a coolant container configured to cool the organ or tissue, a perfusion circuit configured to perfuse the organ or tissue, and a sample compartment for holding a biological sample. Preferred apparatus has a first internal compartment under a first cover (lid) of the apparatus that includes the coolant container and the sample compartment. The apparatus can include a second internal compartment under a second cover (lid) of the apparatus, the second internal compartment including at least part of the perfusion circuit and a sample compartment.

Abstract: An organ perfusion apparatus may include at least two tubes connected to an organ or tissue. A method of perfusing an organ or tissue may include connecting a first end of each of the at least two tubes to an organ or tissue, applying a fluid motive force to a perfusion fluid in the two tubes to force the fluid through the two tubes into the organ or tissue, and perfusing the organ or tissue through the at least two tubes such that the fluid motive force, provided by, e.g., a pump, and backpressure generated by the organ or tissue, establishes a flow balance between the at least two tubes. The flow balance may be altered without altering the fluid motive force that is applied.

Abstract: The present invention is directed to a system and method of remotely controlling a welding machine with command signals transmitted to the welding power source across a weld cable connecting the power source to a remote device, such a wire feeder. A transmitter transmits the control commands containing desired welding operational parameters to a receiver disposed in the power source across a weld cable also designed to carry welding power from the power source to the wire feeder.