| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 030430700 | Oscillating blade | 10 |
| 20090056142 | Powered safety razor systems - As shaving system comprises a shaving head structure; a blade frame defining a longitudinal axis; and at least two blades mounted in the blade frame, each having a cutting edge extending parallel to the longitudinal axis. The frame is mounted on said structure for oscillatory motion perpendicular to, or about an axis parallel to, said longitudinal axis; and a drive system coupled to said frame produces said oscillatory motion. The amplitude of said oscillatory motion is chosen to exceed 0.4 mm and the frequency exceeds 80 Hz go give an average cutting speed greater than 400 mm per second. In one embodiment at least one blade faces in each of two opposed shaving directions, and the amplitude of said oscillatory motion exceeds the spacing between the cutting edges of said oppositely facing blades. The spacing is preferably in the range 0.6 to 1.4 mm and said amplitude is preferably in the range 0.4 to 2.0 mm. | 03-05-2009 |
| 20090133265 | Shaving Head for an Electric Shaver - A shaving head for an electric shaving apparatus, having an under cutter comprising at least one blade which is drivable in at least one direction of movement relative to an outer cutter. To achieve a good shaving result while at the same time protecting the skin to be best possible effect, it is proposed providing the blade with an outer boundary section which is raised in relation to the cutting edge, faces in the direction of the outer cutter and inclines upwardly from the cutting edge toward the outer cutter. | 05-28-2009 |
| 20090133266 | Oscillatory Shaver - A shaving unit for a dry shaver includes at least one outer cutter and one under cutter. Driven by a motor, the outer cutter and the under cutter are movable relative to each other in an oscillatory motion. The under cutter and the outer cutter, which are biased into relative engagement by at least one spring, slide along a common contact surface. The spring is arranged in such a way that its biasing force always acts at an angle to the direction of oscillation. | 05-28-2009 |
| 20090165305 | Electric Shaving Apparatus - An electric shaving apparatus including a housing and a shaving head. The shaving head is coupled to the housing by at least one first elastic element and includes at least one first shaving element. The electric shaving apparatus includes in addition an electric motor for generating an oscillatory motion of the shaving head and an oscillatory motion differing therefrom of at least one second shaving element. The electric motor includes two drive components of which a first drive component is adapted to be driven to oscillate relative to a second drive component. One of the drive components is connected to the second shaving element. The second shaving element or a drive part connected thereto is equipped with an elastic connection to the shaving head. | 07-02-2009 |
| 20100281694 | Razors - A blade unit ( | 11-11-2010 |
| 20110209350 | CUTTING HEAD FOR AN ELECTRIC RAZOR - A cutting head for an electric razor is provided. The cutting head has at least one upper blade and a lower blade associated with the upper blade, which upper and lower blades are movably supported relative to one another and can be driven accordingly by a drive device. The upper blade has a contact surface for the skin to be shaved, which contact surface is formed by a plurality of webs that are each bounded by slots. The longitudinal extent of the webs runs substantially perpendicular to a threading edge bounding the contact surface. The contact surface is designed to be concave and rises towards the threading edge, where the threading edge has an outer radius and this outer radius encloses an angle of less than 90°. | 09-01-2011 |
| 030430800 | Oscillating inner blade | 4 |
| 030430900 | And stationary outer blade | 4 |
| 20130192068 | ELECTRIC HAIR TRIMMER - An electric hair trimmer generally includes a handle, a drive system, and a cutter head. The cutter head includes a stationary blade and a movable blade, and the cutter head is releasably connectable to the handle in operative connection with the drive system. The handle is configured for ejecting the cutter head. | 08-01-2013 |
| 20140331501 | Electrically Operated Shaver With Replaceable Cutting Device - The invention relates to an electrically operated shaver with at least one upper blade attachable to a shear head frame by means of a removable frame, on the underside of which lies a linearly oscillating lower blade. The lower blade is connected via a clutch engagement with an oscillating bridge mounted on either side on the shaver by resilient arms. The oscillating bridge is also connected to the drive shaft of an electric motor via a gear mechanism, so that when the motor is running, the oscillating bridge, and thus also the lower blade, is set in linear reciprocating motion. According to the invention, the resilient arms of the oscillating bridge are arranged on the removable frame. In this way, the oscillating bridge which often wears out quickly, can also be replaced when the cutting device is replaced. This prevents malfunction and potentially high repair expenses, thus reducing costs. | 11-13-2014 |
| 20160129601 | ELECTRIC HAIR TRIMMER - A cutter head for an electric hair trimmer generally includes a cutting assembly having a stationary blade, a movable blade, and a follower connected to the movable blade. The electric hair trimmer has a handle with a drive system and an ejection mechanism. The follower is configured for operative connection with the drive system of the handle for oscillating the movable blade relative to the stationary blade. The cutter head also includes a housing having a tongue configured to provide clearance for the follower when the cutter head is ejected from the handle via the ejection mechanism. | 05-12-2016 |
| 20160176058 | DRY SHAVER | 06-23-2016 |
