34results about How to "Small and" patented technology

A tape drive comprising two motors, two tape spool supports on which spools of tape may be mounted, each spool being drivable by a respective one of the motors, and a controller. The controller controls the energization of the motors such that the tape may be transported in at least one direction between spools mounted on the spool supports. The controller is configured to store a plurality of motor control data items, each data item being associated with a respective tension value. The controller is operative to monitor tension in a tape being transported between spools mounted on the spool supports; read a motor control data item based upon the monitored tension; generate a motor control signal based upon the read motor control data item; and apply the motor control signal to at least one of the motors.

There is provided a bandpass filter for a differential signal applicable to a device having a wide passband, being a device for transmitting a signal using a differential signal. Respective lines 1 and 2 and lines 3 and 4 are provide on two surfaces P1 and P2 at an inner layer of a dielectric body 9. Each two lines are arranged symmetrically about the same plane of symmetry C, and the length of each line is a quarter wavelength at the center frequency of a used band. Reference numerals 5 and 6 are input / output ends of the lines 1 and 2, and 7 and 8 are input output ends of lines 3 and 4. Opposite ends to the input output ends are open. If a differential signal is input to terminals 5, 6, a differential output appears at the terminals 7, 8. This device works as a bandpass filter.

A tape drive for use in for example a transfer printing apparatus to drive a printer ribbon. The printer ribbon is mounted on two spools each of which is driven by a respective stepper motor. A controller controls the energization of the motor such that the ribbon is transported in at least one direction between spools mounted on the spool support. The controller is operative to energize both motors to drive the spools of ribbon in the direction of ribbon transport to achieve push-pull operations. Ribbon tension is monitored to enable accurate control of ribbon supply and ribbon take-up, the ribbon tension being monitored, for example, by monitoring power supply to the two stepper motors.

In a compressor and driving motor assembly, the driving motor is a hybrid permanent magnet motor and / or has a rotor mounted directly on the drive shaft of the compressor, the drive shaft acting as a cantilever supporting the rotor.

An electric machine including a closed chamber with a wall and enclosing a stator, a rotor and a first fluid and a heat exchanging unit stretching from the chamber through the wall to a fluid transporting passage. The heat exchanging unit includes conduits provided in a loop, containing a working fluid and equipped with evaporator channels and condenser channels, first heat transfer elements inside the chamber for transferring heat from the first fluid to the working fluid via the evaporator channels and second heat transfer elements in the passage for transferring heat out of the working fluid via the condenser channels to a second fluid, a first fluid propagating unit inside the chamber forcing the first fluid to circulate and a second fluid propagating unit in the passage forcing the second fluid to flow past the second heat transfer element.

A device for securing ladders to a vehicle having telescoping cross bar having pivotal arms pivotally attached at each end of the telescoping cross bar, respectively, the telescoping crossbar having a receiving portion and an insertion portion, the insertion portion and receiving portion sized such that there is a close fit when inserting the insertion portion into the receiving portion, each pivotable arm has an arm body that includes a pivot arm aperture, at each distal end of the insertion portion and receiving portion are at least one pivot tang, also located at each distal end of the insertion portion and receiving portion is a ladder insertion tang, the ladder insertion tangs are attached to projecting tabs on the distal ends and are inwardly directed, and the receiving portion includes a movement limiting mechanism.

A dielectric barrier discharge plasma generation devices that controllably produces uniform, non-equilibrium plasma and discharges a plasma plume at atmospheric pressure. The device has a gas source, a power source, and a plasma generator probe from which the plume of plasma is discharged. The probe has an elongate, dielectric ionization conduit arranged in coaxial relationship within the housing. An elongate inner electrode extends within the ionization conduit and connects to the power source. An outer electrode is slidably arranged on the outer surface of the ionization conduit, and is also electrically connected to the power source. The electrodes are constructed and arranged so that movement of the outer electrode relative to the inner electrode changes at least one property of the plasma plume. The inner electrode may include means for generating a plurality of separate, high-intensity electric fields along the length and around the perimeter of the inner electrode distal portion. In a preferred embodiment, the inner electrode has an elongate base extending generally parallel to the central axis of the ionization tube, and a plurality of bristles electrically-connected to and transversely-extending from at least a portion of the electrode base.