Abstract: A contact arm assembly includes a contact arm defining a central axis and having a first end configured for electrical connection with a pole of a circuit breaker and a second end having a distal end defining a shoulder and an engagement that protrudes from the contact arm proximal to the shoulder. A plurality of contact fingers are mounted circumferentially on the second end of the contact arm and configured to electrically engage a primary circuit contact. Each contact finger has a body with a depression that receives the engagement for electrical contact.

Abstract: A switchgear system may include a switchgear frame and a truck carrying a circuit breaker and supported for linear movement on the switchgear frame. A drive mechanism may rack in the truck and the circuit breaker is in electrical connection with primary circuit contacts, and may rack out the truck and the circuit breaker is electrically disconnected from the primary circuit contacts. As the drive mechanism racks in the circuit breaker, a shutter linkage moves a shutter opened, and as the drive mechanism racks out the circuit breaker, the shutter linkage moves the shutter closed over the primary circuit contacts.

Abstract: The present invention relates to the fields of medicine, cell biology, molecular biology and genetics. In particular, the present invention provides methods to isolate and purify microvesicles from cell culture supernatants and biological fluids. The present invention also provides pharmaceutical compositions of microvesicles to promote or enhance wound healing, stimulate tissue regeneration, remodel scarred tissue, modulate immune reactions, alter neoplastic cell growth and/or mobility, or alter normal cell growth and/or mobility. The present invention also provides compositions of microvesicles to be used as diagnostic reagents, and methods to prepare the compositions of microvesicles.

Abstract: A switchgear system may include a switchgear frame, a truck and circuit breaker mounted thereon. A drive mechanism is mounted on the switchgear frame and configured to rack the circuit breaker into a) a first connected position where the primary and secondary circuits are electrically connected, b) a second test position where the primary circuit is electrically disconnected and secondary circuit connected, and c) a third disconnected position where the primary and secondary circuits are electrically disconnected, wherein said drive mechanism comprises a drive chain and shuttle configured to engage the truck and rack and fix the circuit breaker into the first connected position.

Abstract: A software migration system includes a processor; a user interface that receives and displays components of a legacy software and a new software system; and a migration program as machine instructions stored on a non-transitory, computer-readable storage medium. The processor executes to identify reference models, standards, and requirements of a system common architecture that together define a process for migrating the legacy software to the new software system; load the legacy software onto a virtual machine instantiated on a dedicated hardware platform; refactor the legacy software; subdivide the refactored legacy software into legacy software subsets; move a first legacy software subset to a second virtual machine instantiated on the hardware platform; for a second legacy software subset, adapt the second legacy software subset to the system common architecture; and combine the adapted second legacy software subset and the first legacy software subset to produce the new software system.

Abstract: A medium-voltage switchgear system includes a three-phase circuit breaker having first, second and third single-phase vacuum interrupters connected between respective first, second and third single-phase inputs and first, second and third single-phase outputs. Magnetic actuators are connected to first, second and third single-phase vacuum interrupters, which are configured to receive an interrupt signal and in response, actuate the respective vacuum interrupter connected thereto into an open circuit condition. A controller circuit is connected to each of the first, second and third magnetic actuators and generates an interrupt signal in response to a detected single-phase overcurrent or fault on a single-phase circuit and interrupt that single-phase circuit on which the single-phase overcurrent or fault occurred and maintain power on the remaining two single-phase circuits over which a single-phase overcurrent or fault was not detected.

Abstract: A method for assisting wallet providers in regulatory compliance for blockchain transactions includes: receiving, by a receiver of a processing server, a new blockchain transaction from a first computing device, the new blockchain including at least a destination address associated with a blockchain wallet as a recipient for the new blockchain transaction; generating, by a processor of the processing server, a reference identifier for the new blockchain transaction; identifying, by the processor of the processing server, a profile for the blockchain wallet based on the destination address; transmitting, by a transmitter of the processing server, the reference identifier to the first computing device; and transmitting, by the transmitter of the processing server, a notification message to a second computing device, the notification message including at least the reference identifier and data associated with the blockchain wallet.

Abstract: A method for performing authentication of a client device using a hash chain includes: receiving a first data request from a client device, the first data request including at least a user identifier and a first hash value; transmitting a first data response message to the client device; receiving a second data request from the client device, the second data request including at least the user identifier and a second hash value; generating a validating hash value by applying a hashing algorithm to the second hash value; validating the first hash value as being equal to the generated validating hash value; and transmitting a second data response message to the client device upon successful validation of the first hash value, wherein the second data response message includes one or more data values associated with the user identifier.

Abstract: A method for atomic exchange of assets on multiple blockchains using transient key pairs includes: generating, by a first computing device, a proposal message, the proposal message including at least a first transaction value, a first network identifier corresponding to a first blockchain, a second transaction value, a second network identifier corresponding to a second blockchain, and a swap public key of a swap cryptographic key pair; generating, by the first computing device, a first digital signature for the proposal message; encrypting, by the first computing device, the first digital signature using the swap public key and a first private key of a first cryptographic key pair; appending, by the first computing device, the encrypted first digital signature to the generated proposal message; and transmitting, by the first computing device, the generated proposal message with appended encrypted first digital signature to a second computing device.

Abstract: A tool for feeding material into a mill having a roller and forming a nip gap. The tool broadly comprises a baseplate, a guide plate, and a ram. The baseplate is configured to be positioned on the mill over the roller and forms a slot. The guide plate is configured to be positioned in the slot of the baseplate near the nip gap. The guide plate forms a chute for feeding the material into the nip gap. The ram is configured to be inserted into the chute to urge the material into the nip gap while preventing a user's fingers and other foreign objects from nearing the nip gap through the chute.

Abstract: A process for preparing a rubber vulcanizate, the process comprising (i) providing a vulcanizable composition of matter including a sulfur-based curative, zinc oxide, and a eutectic solvent; and (ii) heating the vulcanizable composition to thereby effect vulcanization.

Abstract: A system and a corresponding computer-implemented method identifies and classifies community-sourced documents as true documents. The community-sourced documents include one or more data objects such as data items, including text, strings, phrases, and words; image items, including still image items, video image items, and icons; and drawing items. The system and corresponding method then report the analysis results.

Abstract: A method for making thermosetting polyimides from resveratrol including converting resveratrol to trisaniline, reacting trisaniline with one or more dianhydride and thermosetting endcap to form amic acid, thermally imidizing amic acid to form polyimide oligomer, and cross-linking polyimide oligomer with heat and pressure to generate polyimide thermoset.

Abstract: A method for distributing multiple cryptographic keys used to access data includes: receiving a data signal superimposed with an access key request, wherein the access key request includes at least a number, n, greater than 1, of requested keys; generating n key pairs using a key pair generation algorithm, wherein each key pair includes a private key and a public key; deriving an access private key by applying the private key included in each of the n key pairs to a key derivation algorithm; generating an access public key corresponding to the derived access private key using the key pair generation algorithm; and electronically transmitting a data signal superimposed with a private key included in one of the n key pairs for each of the n key pairs.

Abstract: A method for recovery of missing or extra data using a bloom filter includes: storing a plurality of transaction messages, each including a transaction value; generating a bloom filter of the transaction messages, the bloom filter being generated using a number of hash rounds and with a size at least double the number of transaction messages; generating a recover message including the number of transaction messages, the number of hash rounds, the size, and the generated bloom filter; transmitting the recover message to a consensus node; receiving a response message from the consensus node, the response message including at least one additional transaction message; and inserting the at least one additional transaction message into the plurality of transaction messages.

Abstract: A method for confirmation of an electronic transaction using a blockchain includes: receiving transaction data, the transaction data including a transaction amount and currency code; generating a transaction message formatted based on one or more standards including a first data element configured to store the transaction amount, a second data element configured to store the currency code, and a third data element configured to store an invoice identifier; transmitting the transaction message to a financial institution via a payment network; receiving a return message from the financial institution via the payment network formatted based on the one or more standards and including a data element configured to store the transaction amount, currency code, and invoice identifier; and generating a hash value based on application of hashing algorithms to the transaction amount, currency code, and invoice identifier stored in the data element included in the received return message.

Abstract: A method of separating a downhole tubular includes running a tool into a wellbore to a predetermined location on a work string and actuating flow actuated slips. The method also includes maintaining slips in a set position by providing a first upward force on the work string. The method further includes rotating the work string to separate an upper portion of the tubular from a lower portion using a cutter assembly disposed on the work string below the slips and pulling the upper portion of the tubing and the tool from the wellbore.

Abstract: A method for assisting wallet providers in regulatory compliance for blockchain transactions includes: receiving, by a receiver of a processing server, a new blockchain transaction from a first computing device, the new blockchain including at least a destination address associated with a blockchain wallet as a recipient for the new blockchain transaction; generating, by a processor of the processing server, a reference identifier for the new blockchain transaction; identifying, by the processor of the processing server, a profile for the blockchain wallet based on the destination address; transmitting, by a transmitter of the processing server, the reference identifier to the first computing device; and transmitting, by the transmitter of the processing server, a notification message to a second computing device, the notification message including at least the reference identifier and data associated with the blockchain wallet.

Abstract: A method for moderation in a permissioned blockchain using a hash-oriented scheme includes: storing a blockchain including a most recent block; receiving transaction data values; receiving a first reference value and a second reference value; generating a first hash value by hashing the first reference value; generating a block proof including the first hash value, a second hash value, a third reference value, and a block value; verifying a block header of the most recent block using the block proof; receiving a new block value; generating a new block header including the first reference value, the second reference value, a fourth reference value, and the new block value; generating a new block for the blockchain including the new block header and the transaction data values; and transmitting the new block to one or more additional nodes associated with the blockchain.

Abstract: A method for performing authentication of a client device using a hash chain includes: receiving a first data request from a client device, the first data request including at least a user identifier and a first hash value; transmitting a first data response message to the client device; receiving a second data request from the client device, the second data request including at least the user identifier and a second hash value; generating a validating hash value by applying a hashing algorithm to the second hash value; validating the first hash value as being equal to the generated validating hash value; and transmitting a second data response message to the client device upon successful validation of the first hash value, wherein the second data response message includes one or more data values associated with the user identifier.