Abstract: A cartridge for a conducted electrical weapon may comprise a body having a first end opposite a second end and an outer surface opposite an inner surface. A projectile may be disposed within the body. The inner surface of the body may define a plurality of grooves extending from the first end of the body to a location within the body.

Abstract: A cartridge for a conducted electrical weapon may comprise a body having a first end opposite a second end and an outer surface opposite an inner surface. A projectile may be disposed within the body. The inner surface of the body may define a plurality of grooves extending from the first end of the body to a location within the body.

Abstract: A cartridge for a conducted electrical weapon may comprise a body having a first end opposite a second end and an outer surface opposite an inner surface. A projectile may be disposed within the body. The inner surface of the body may define a plurality of grooves extending from the first end of the body to a location within the body.

Abstract: A cartridge for a conducted electrical weapon may comprise a body having a first end opposite a second end and an outer surface opposite an inner surface. A projectile may be disposed within the body. The inner surface of the body may define a plurality of grooves extending from the first end of the body to a location within the body.

Abstract: A computer-implemented method for securing a user device is disclosed. A signed device authentication key is requested and received from a user application executing on the user device. The signed device authentication key is obtained via a software module installed on the user device and associated with a secure data processing provider. A device setup request is transmitted from the user device to the secure data processing system using the signed device authentication key. The device setup request comprises the signed device authentication key. The authenticity of the device setup request is verified at the secure data processing system based on the signed device authentication key.

Abstract: Method and system for recording data describing a first entity, the data endorsed by a second entity comprising the second entity validating data describing the first entity, wherein an identifier is associated with the data, the identifier being generated from a public key of the first entity. Cryptographically signing data corresponding with the data describing the first entity using at least a private key of the second entity. Posting a transaction to a block chain including the cryptographically signed data. Method and system for obtaining data describing a first entity the data endorsed by a second entity comprising. Receiving an identifier of data describing the first entity. Retrieving an entry from a block chain based on the received identifier. Authenticating the entry using a public key of the second entity. Extracting the data describing the first entity from the retrieved entry.

Abstract: A computer-implemented method for securing a user device is disclosed. A signed device authentication key is requested and received from a user application executing on the user device. The signed device authentication key is obtained via a software module installed on the user device and associated with a secure data processing provider. A device setup request is transmitted from the user device to the secure data processing system using the signed device authentication key. The device setup request comprises the signed device authentication key. The authenticity of the device setup request is verified at the secure data processing system based on the signed device authentication key.

Abstract: A starter motor controller for a starter motor operatively connected to a single coil solenoid includes a first pair of switches including a first solenoid switch and a second solenoid switch. The first solenoid switch selectively completes a first electrical circuit for delivering a first electrical current to the single coil solenoid and the second solenoid switch selectively completes a second electrical circuit for delivering a second electrical current to the single coil solenoid that is less than the first electrical current. A second pair of switches includes a first starter motor switch and a second starter motor switch. The first starter motor switch selectively completes a first electrical circuit for delivering a first electrical power to the starter motor and the second starter motor switch selectively completes a second electrical circuit for delivering a second electrical power to the starter motor that is greater than the first electrical power.

Abstract: A starter motor controller for a starter motor operatively connected to a single coil solenoid includes a first pair of switches including a first solenoid switch and a second solenoid switch. The first solenoid switch selectively completes a first electrical circuit for delivering a first electrical current to the single coil solenoid and the second solenoid switch selectively completes a second electrical circuit for delivering a second electrical current to the single coil solenoid that is less than the first electrical current. A second pair of switches includes a first starter motor switch and a second starter motor switch. The first starter motor switch selectively completes a first electrical circuit for delivering a first electrical power to the starter motor and the second starter motor switch selectively completes a second electrical circuit for delivering a second electrical power to the starter motor that is greater than the first electrical power.

Abstract: An electric machine configured to increase resistance between a brush and a commutator of the electric machine at a wear condition of the brush consistent with end of service life.

Abstract: Method and system for recording data describing a first entity, the data endorsed by a second entity comprising the second entity validating data describing the first entity, wherein an identifier is associated with the data, the identifier being generated from a public key of the first entity. Cryptographically signing data corresponding with the data describing the first entity using at least a private key of the second entity. Posting a transaction to a block chain including the cryptographically signed data. Method and system for obtaining data describing a first entity the data endorsed by a second entity comprising. Receiving an identifier of data describing the first entity. Retrieving an entry from a block chain based on the received identifier. Authenticating the entry using a public key of the second entity. Extracting the data describing the first entity from the retrieved entry.

Abstract: Method and system for transferring digital currency from a payer to recipient comprising receiving an identifier of data describing the first entity. Retrieving an entry from a block chain based on the received identifier. Authenticating the entry using a public key of the second entity. Extracting the data describing the first entity from the retrieved entry. Authenticating a block in the block chain containing the entry using a public key of a third entity. If the authentication of the block in the block chain is successful then transferring digital currency from a payer to a recipient, wherein the first entity is the payer or the recipient, and wherein transferring digital currency from the payer to the recipient comprises the payer. Obtaining wallet public key data associated with the recipient. Generating, using at least the wallet public key data, a currency public key for the amount of digital currency to be transferred to the recipient.

Abstract: An electric machine configured to increase resistance between a brush and a commutator of the electric machine at a wear condition of the brush consistent with end of service life.

Abstract: A starter assembly is provided and includes a shaft to transmit rotation to a ring gear via a pinion and including a first helical spline with angling directed reversely with respect to a direction of the rotation and an elastic element anchored on the first helical spline to bias the pinion in an axial direction. The ring gear and the pinion include complementary teeth and the pinion defines a bore with a second helical spline to register with the first helical spline such that the pinion teeth are forwardly rotated into ring gear teeth engagement positions as the shaft moves axially relative to the pinion in the axial direction.

Abstract: An apparatus including a rotating member, a resolver and a mounting structure. The resolver includes a resolver stator and a resolver rotor fixedly mounted on the rotating member via a mounting structure. The mounting structure has a low magnetic relative permeability and isolates the resolver rotor from the rotating member by preventing direct contact between the rotating member and the resolver rotor. The disclosed apparatus may be an electric machine having a rotor fixed to the rotating member and be suitable for use in a hybrid vehicle. The mounting structure advantageously has a relative permeability of no greater than about 2 and may be formed out of stainless steel material. The rotating member may be a rotor hub formed out of steel material having a relative permeability of at least about 50.

Abstract: An electric machine includes a pair of substantially aligned sheet metal housing sections each including a substantially “L” shaped portion, at least one cooling channel being formed at an axial end between the two sections, and a plurality of power electronics components engaged with at least one of the housing sections adjacent the axial end cooling channel. An embodiment includes a stator, a pair of housing sections enclosing the stator, power electronics components positioned at an axial end of the electric machine for controlling operation of the electric machine, and a coolant flow path that includes a power electronics cooling channel formed at the axial end between the housing sections. A method includes forming an axial end cooling channel between two sheet metal housing sections, and positioning power electronics components at the axial end along the cooling channel, whereby heat from the electronics components is transferred to the cooling channel.

Abstract: A starter assembly is provided and includes a shaft to transmit rotation to a ring gear via a pinion and including a first helical spline with angling directed reversely with respect to a direction of the rotation and an elastic element anchored on the first helical spline to bias the pinion in an axial direction. The ring gear and the pinion include complementary teeth and the pinion defines a bore with a second helical spline to register with the first helical spline such that the pinion teeth are forwardly rotated into ring gear teeth engagement positions as the shaft moves axially relative to the pinion in the axial direction.

Abstract: Some embodiments of the invention provide a starter system including a starter, capable of being in communication with an electronic control unit. The starter can include a motor coupled to a circuit and a pinion including a plunger, and a plurality of solenoid assemblies including a plurality of biasing members. The plurality of solenoid assemblies can include at least one solenoid winding capable of moving the plunger, and at least one solenoid assembly capable of holding the plunger, and at least one solenoid assembly capable of controlling current flow to the motor. Some embodiments include a first switch coupled to the circuit that is capable of being activated by the plunger to control current flowing to at least a portion of the circuit. Some embodiments include at least two power isolation switches capable of controlling a current flow within the circuit.

Abstract: A starter assembly adapted for use with an engine having a flywheel and electronic control unit. The starter includes a motor, magnetic field source and a pinion gear engageable with the flywheel. An internal power train transmits torque from the armature to the pinion gear and includes a gear set dividing the internal power train into a first segment with the armature and a second segment with the pinion gear. During operation the first segment has a faster rotational speed than the second segment. A speed sensor senses the speed of the first segment and communicates it to the electronic control unit. The starter assembly can be used in a vehicle with an automatic start-stop function and facilitates the synchronizing of the pinion gear and flywheel speeds when restarting the engine. The speed sensor can take various forms and is advantageously supported on the field frame assembly proximate the commutator.

Abstract: A variable flux starter and switch system including a starter motor with motor field winding first and second portions, a control unit capable of selectively issuing starter activation and desired flux level signals, a motor energizing switch moveable between open and closed positions consequent to issuance of the starter activation signal, and a regulating device that transitions between default and activated operational states consequent to issuance of the flux level signal. The regulating device has a moveable blocking member and relatively moveable contact members, and in one of the default and activated operational states, electrical contact between the contact members is permitted or prevented by the blocking member. Current through the closed motor energizing switch substantially bypasses a motor field winding portion when electrical contact between the contact members is permitted, and is conducted through both portions when prevented. Also, a method for varying starter motor flux levels.