Abstract: In a compact motor 1 comprising a cylindrical permanent magnet 13, which is affixed to the inner surface of a hollow cylindrical yoke 12, and an armature core 22, which is provided at the interior of the permanent magnet 13, the armature core 22 comprises three slots 29 disposed at a uniform pitch, the permanent magnet 13 is bipolar-magnetized, and each magnetic pole has a maximum magnetic flux density value P in a range of 40° to 50° from the center at both sides of the magnetic pole, the maximum value P being within the range of 1.3 times to 1.8 times the magnetic flux density at the center of the magnetic pole.

Abstract: A linear actuating device contains a top magnet and a bottom magnet. The bottom magnet is axially aligned with the top magnet. The top magnet and the bottom magnet have opposing magnetization. A washer is sandwiched between the top magnet and the bottom magnet. A top coil is positioned within the top magnet. A bottom coil is positioned within the bottom magnet. A slug is slidably positioned within the top coil and bottom coil. An actuating member is integral with the slug.

Abstract: The present invention is directed towards an air circulation device. The air circulation device is capable of producing and directing an air current to a desired location. The air current is used to circulate stagnant air which, in turn, provides a cooling effect. Advantageously, the device is electrically powered by 12-volt direct current (DC) but is capable of producing an air current of a magnitude similar to or greater than that produced by air circulation devices which are powered by 120-volt alternating current (AC). Further, the device contains at least one retractable elongated support which allows the device to stand upright on a flat surface when the support is in an extended position. When the device is not in use, the support may be retracted so as to be protected from being damaged during transport. Still further, the device is manufactured of a polymeric material and the motor and bearings of the device are sealed.

Abstract: A method and apparatus for assembling permanent magnet segments and a back ring wherein a fixture holds segments in circumaxially spaced relationship, adhesive is applied to the segments, externally from pressure sensitive adhesive tape and the fixture then expands to urge the segments into firm bonding engagement with the back ring.