Abstract: A cutter head includes a first member, a cutting bit, and a second member. The first member includes a first end and a second end and includes a first mass. The cutting bit is coupled to the first member proximate the second end. The cutting bit includes a cutting edge rotatable about the axis. The second member is rotatable about the axis and includes a second mass eccentrically positioned with respect to the axis. Rotation of the second mass causes the first member and the cutting bit to oscillate.

Abstract: Security features for an electronic metered-dose smart inhaler, mobile app, and cloud-based software system for use with medical prescriptions and clinical trial regimens. The smart inhaler requires several types of user validation and feedback, and enters a locked-out state when required user feedback is not received or when received user feedback raises a suspicion of fraudulent or improper use. While the smart inhaler system is well suited for aerosol medical marijuana products, it may be used to deliver and conduct clinical trials on any type of product suitable for aerosol administration including other types of medication and non-medical products, such as nicotine, herbal products, pain killers, sleep aids, dietary stimulants, dietary suppressants, etc. The security features are not limited to aerosol inhalers, and may be applied more widely to other types of in-home, patient-administered products.

Abstract: Security features for an electronic metered-dose smart inhaler, mobile app, and cloud-based software system that validates users and inhaler use protocols, such as medical prescriptions and clinical trial regimens. The smart inhaler interacts with a mobile app to control and monitor per-dose usage and capture efficacy results and feedback from medical patients and clinical trial participants for review by prescribing physicians, clinical trial administrators, medicine formulators and artificial intelligence. While the smart inhaler system is well suited for aerosol medical marijuana products, it may be used to deliver and conduct clinical trials on any type of product suitable for aerosol administration including other types of medication and non-medical products, such as nicotine, herbal products, pain killers, sleep aids, dietary stimulants, dietary suppressants, etc.

Abstract: Security features for an electronic metered-dose smart inhaler, mobile app, and cloud-based software system that validates users and inhaler use protocols, such as medical prescriptions and clinical trial regimens. The smart inhaler interacts with a mobile app to control and monitor per-dose usage and capture efficacy results and feedback from medical patients and clinical trial participants for review by prescribing physicians, clinical trial administrators, medicine formulators and artificial intelligence. While the smart inhaler system is well suited for aerosol medical marijuana products, it may be used to deliver and conduct clinical trials on any type of product suitable for aerosol administration including other types of medication and non-medical products, such as nicotine, herbal products, pain killers, sleep aids, dietary stimulants, dietary suppressants, etc.

Abstract: A cab suspension system is provided for a yard tractor having tiltable cab with a laterally offset center of gravity which maintains the cab at lateral level, controllably adjusts the longitudinal level, and unlatches and raised the cab in one operation. The system preferably includes a pair of adjustable air sleeve springs disposed between the cab and the tractor frame with one of the springs being larger than the other and disposed on the enter-of-gravity side of the cab; and a hydraulically operable latch coupling the cab with the springs. In use, the configuration of the springs maintains the lateral level of the cab, the tractor driver adjusts the springs' air pressure for longitudinal level, and actuation of the hydraulic system unlatches the cab from the springs and tilts the cab upwardly.

Abstract: A multi-winding a-c electric power supply is connected to a d-c load circuit via a power rectifier assembly comprising at least two legs connected in parallel across the load circuit. Each leg has at least four serially interconnected unilaterally conducting devices. A first one of the power supply windings is connected between the two rectifier legs at points between first and second devices thereof, and a duplicate winding (voltages of both windings are in-phase and of equal amplitude) is connected between the legs at points between third and fourth devices thereof, whereby the windings are effectively connected in parallel. The respective junctures of the second and third devices in all of the rectifier legs are interconnected by switching means which, upon switching to a closed circuit state, short circuits these junctures and thereby changes the connection of the windings from parallel to series.

Abstract: A plurality of stationary markers (A, B, C, and D) are symmetrically placed at predetermined locations in the right of way of an electrically propelled traction vehicle on opposite sides of a transition point coinciding with a gap (14) between adjacent sections (13a, 13b) of a wayside conductor. Proximity sensing means (PSR, PSL) on the vehicle provide discrete output signals on a first line (43) upon passing the first and third markers (A and C) and on a second line (44) upon passing the second and fourth markers (B and D). Receiver logic means (42) includes means (108, 111-115, and 118-127), responsive to the output signals on the first and second lines, respectively, for producing a first control signal (on line 51) during the first-to-third marker interval and a second control signal (on line 50) during the second-to-third marker interval.

Abstract: To detect a d-c component of alternating current in the primary winding of an electric power transformer, a pair of current transducers are provided. Each current transducer has a saturable core adapted to be magnetized by the same current as flows in the transformer primary winding, and bias means associated with both transducers presaturate their respective cores in opposite directions by equal predetermined amounts of magnetomotive force. Secondary windings on the cores of the respective current transducers are connected to means for deriving an output signal in response to voltage induced in one but not both of the secondary windings as a result of alternating current containing a d-c component in the power transformer if such current has sufficient magnitude to unsaturate the core of one of the current transducers, a condition typifying the surge of inrush magnetizing current that flows in the transformer primary when initially energized.