Abstract: A comb attachment for a hair clipper includes a base having a depression adjacent a back edge of the attachment and a flexible clip extending outwardly from the back edge. The depression locates a user's finger or thumb when pressing the base until the clip flexes around the edge of the blade. The comb attachment is removed by pulling the clip back around the blade. The flexible clip can be a cantilever having two spaced arch-shaped arms extending from the base and secured to each other at their cantilevered ends by a cross-member. The bottom surface of the cross-member can be angled to facilitate release of the clip and removal of the attachment.

Abstract: A hair clipper has a vacuum system for collecting hair debris created by the cutting blades. Air flow through an adjustable air inlet is divided into multiple paths, including at least one primary flow path and at least one separate secondary flow path. A debris trap intersects both the primary air flow path and the secondary air flow path. The primary flow path allows air flow through a first path to be higher than a secondary air flow through the second path before debris accumulates in the debris trap. The primary air flow decreases as debris accumulates in the primary air flow path and the secondary air flow approaches and perhaps exceeds the primary air flow, whereupon some debris accumulates in the secondary air flow path as air is diverted through the secondary air flow path.

Abstract: A pivot motor has a stator and an armature. The armature has an assembly of two spaced permanent magnets and a triangular flux bridge on one end. Magnetic flux is generated by passing alternating current through an electrical coil in the stator. The flux flows through the permanent magnets to generate electromotive force that vibrates the armature. The triangular flux bridge adjacent the magnets facilitates the flux flow, increasing motor power under typical load conditions and motor efficiency.

Abstract: A hair trimmer has a base housing and a blade set having a stationary blade and a reciprocating blade. The base housing has a blade set support at one end. The support has a pair of spaced blade set support projections. A cam follower has spaced spring retainers near a bottom of the cam follower, and spaced spring end catches near an upper edge of the cam follower. A spring has elongated legs and a tension arm. The elongated legs extend under the spring retainers and into the spring end catches in the cam follower. A spring tensioner is secured in the base housing by a latch that engages a tensioner catch. The spring tensioner secures the tension arm so that the spring is under tension.

Abstract: A hair clipper has a base housing, a secondary housing cover, and a rotary motor or vibrator motor secured between the base housing and the housing cover. The rotary motor has a shaft and a cam secured to an end of the shaft, and the vibrator motor has a drive arm with a drive finger. A cam follower is operably connected to the cam or drive finger on a top side. The top side of the cam follower also has an elongated guide rail that is operably secured to a guide channel in a blade guide, which in turn is secured to the base housing. A reciprocating blade is operably secured to the bottom side of the cam follower, and a stationary blade is secured to the base housing adjacent the reciprocating blade.

Abstract: A hair clipper has a base structural housing with a blade set operably secured thereto. The blade set has a stationary blade and a reciprocating blade. The base has at least one support for a rotary motor. A flexible motor vibration and noise damper fits over half of the motor, and a motor cover is secured to the base structural housing over the vibration damper. A secondary housing cover is secured to the base structural housing over the motor cover.

Abstract: A tooth for a blade of a hair cutting apparatus includes a root secured to a base of the blade, a tip opposite the root, and a longitudinal axis of the tooth defined between the root and the tip. A lower, planar cutting surface is provided on the tooth, as is an upper surface opposite the lower surface, and sidewalls separating the upper surface from the lower surface. At least a portion of the upper surface and the sidewalls is elliptical in the direction of the longitudinal axis, beginning at the tip.

Abstract: An attachment comb is provided for a hair clipper, and includes a comb body having a leading edge and an attachment edge, a blade-engaging surface and an opposite outer surface, and a plurality of teeth projecting from the leading edge. Sidewalls on the comb body project from the body, and at least one of the sidewalls defines a magnet opening. The blade-engaging surface has a magnet recess located adjacent a corresponding magnet opening, the magnet recess defining a magnet pocket. A magnet has a peripherally projecting base flange and is constructed and arranged for insertion through the magnet opening and such that the flange is insertable into the recess and the magnet is disposed in the magnet pocket so that a blade contacting surface of the magnet is in direct contact with a corresponding clipper blade upon assembly of the comb upon a clipper blade.