Abstract: A nozzle for additive manufacturing having a body having a thermally conductive material, a front side opposite a back side, a first side opposite a second side, the first side and the second side connected to and between the front side and the back side. The nozzle further has a top end opposite an extrusion end, and the body tapers at the extrusion end to a nozzle opening. A first conduit extends through the body from an opening in the top end to the nozzle opening in the extrusion end. A heater conduit, adjacent to the first conduit, extends from a heater opening in the top end and into the body towards the extrusion end and a sensor conduit, adjacent to the first conduit, extends from a sensor opening in the top end and into body towards the extrusion end.

Abstract: A nozzle for additive manufacturing having a body having a thermally conductive material, a front side opposite a back side, a first side opposite a second side, the first side and the second side connected to and between the front side and the back side. The nozzle further has a top end opposite an extrusion end, and the body tapers at the extrusion end to a nozzle opening. A first conduit extends through the body from an opening in the top end to the nozzle opening in the extrusion end. A heater conduit, adjacent to the first conduit, extends from a heater opening in the top end and into the body towards the extrusion end and a sensor conduit, adjacent to the first conduit, extends from a sensor opening in the top end and into body towards the extrusion end.

Abstract: An apparatus for additive manufacturing having a body; a plurality of articulated arms, each having a jointed connection to the body opposite a free end, the plurality of articulated arms movable relative to each other and the plurality of articulated arms having opposable motions about the jointed connection; an extruder at the free end of each of the plurality of articulated arms, the extruder having an extruder nozzle extending from the free end; and at least one cooling nozzle extending from the free end of each of the plurality of articulated arms.

Abstract: Disclosed are methods for exchanging transaction data, including transmitting a first public encryption key and transaction data associated with a transaction to a computing device via a near field communication (NFC) connection, receiving a second public encryption key and a transaction message associated with the transaction via the NFC connection, and appending the second public encryption key and the transaction message associated with the transaction to a database stored in a memory in communication with at least one integrated circuit, wherein the at least one integrated circuit is powered by an electromagnetic field generated by the computing device. Systems and computer program products are also provided.

Abstract: Disclosed are methods for exchanging transaction data, including transmitting a first public encryption key from a first computing device via a near field communication (NFC) connection, receiving transaction data associated with a transaction at the initiating device via the NFC communication connection, generating a transaction message associated with the transaction based on the transaction data associated with the transaction and the first public encryption key, encrypting at least a portion of the transaction message associated with the transaction with a second public encryption key; determining that a network communication connection to a payment processing network different from the NFC communication connection can be established, and transmitting the transaction message via the network communication connection based on determining the network communication connection to the payment processing network can be established. A system and a computer program product are also provided.

Abstract: Disclosed are methods for exchanging transaction data, including transmitting a first public encryption key from a first computing device via a near field communication (NFC) connection, receiving transaction data associated with a transaction at the initiating device via the NFC communication connection, generating a transaction message associated with the transaction based on the transaction data associated with the transaction and the first public encryption key, encrypting at least a portion of the transaction message associated with the transaction with a second public encryption key; determining that a network communication connection to a payment processing network different from the NFC communication connection can be established, and transmitting the transaction message via the network communication connection based on determining the network communication connection to the payment processing network can be established. A system and a computer program product are also provided.