Abstract: A hair trimmer or other attachment can be secured to a conventional hair clipper. The attachment has a stationary blade and a moving blade that cut hair when the moving blade reciprocates. The moving blade of the attachment is driven by a moving blade of the hair clipper, which also reciprocates. The attachment has a housing which secures the attachment to the stationary blade or other part of the hair clipper. A drive member engages the moving blade of the hair clipper when the attachment is secured to the hair clipper, and the drive member in turn drives the moving blade of the hair trimmer attachment to cut hair. The attachment can be easily detached so that the hair clipper blades can be used to cut hair in the usual manner.

Abstract: A hair clipper has a housing and a pair of blades secured outside of the housing. One of the blades is stationary, and the other reciprocates. A hair trimmer or other attachment is tethered to the hair clipper so that it can be selectively placed over the hair clipper blades in use, but is not lost when removed from the blades. The attachment is stored in a recess in the housing when not in use.

Abstract: A vibrator motor has a stationary piece and a moving piece hinged at one end. The moving piece does not generate substantial internal spring forces under the influence of an electromagnetic field, because it does not have a tail bracket. Other parts of conventional motors are also eliminated, so the motor is easier and less expensive to manufacture. In addition, the motor can be assembled and tuned before installation, which increases the ability to automate assembly.

Abstract: A vibrator motor for electric hair clippers, massagers and the like includes a fixed magnetically permeable piece and a moving magnetically permeable piece. The fixed and moving pieces form a plurality of flux gap zones between selected corresponding surfaces of the fixed and moving pieces.Each of the flux gap zones has an air gap formed between the selected corresponding surfaces of the fixed piece and the moving piece. The air gaps have a total gap surface area, and an apparent gap surface area. The apparent gap surface area can be measured by viewing a selected surface which forms each gap through a plane which is generally perpendicular to the direction of the path of oscillating motion of the moving piece, or through a selected cross-section of the fixed or moving piece which is perpendicular to the path. In this invention, the total gap surface area of the gap in at least one of the flux gap zones is greater than the apparent gap surface area of that gap or gaps.