Electric shaver
AssigneeU.S. Philips Corporation
InventorRomuald L. Bukoschek
Life of this patent
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AssigneeU.S. Philips Corporation
InventorRomuald L. Bukoschek
Estimating the term…
An electric shaver (1) is provided comprising a housing (2), a shaving head (5) comprising a shaving foil (7) and a cutter assembly (8) with cutter lamellae (19), and a motor (23) of the rotary type as well as a transmission mechanism (31) acting between the motor (23) and the cutter assembly (8) in order to convert the rotation of the motor shaft (30) into a reciprocating movement to the drive a cutter assembly (8), the motor (23) having a nominal operating speed between 8000 and 10,000 revolutions per minute, wherein the motor (23) is covered with a sheath (32) of an elastic material, the transmission mechanism (31) comprises at least one balancing mass (52), and each of the cutter lamellae (19) of the cutter assembly (8) is provided with an indentation (57, 58) in each of its two side faces (55, 56) which are each bounded by a cutting edge (53, 54), which indentation extends parallel to the cutting edge (53, 54), and exhibits a cutting angle (.beta.) smaller than 90.degree. at both its cutting edges (53, 54).
An electric shaver comprising a housing, a shaving head connected to the housing and comprising a shaving foil and a cutter assembly which comprises a multitude of cutter lamellae, which is reciprocable parallel to a direction of movement and which cooperates with the shaving foil, a motor of the rotary type secured in the housing and having a specific nominal operating speed, and a transmission mechanism which is coupled to the motor shaft of the motor to convert the rotation of the motor shaft into a reciprocating movement and which is coupled to the cutter assembly for the reciprocating drive of this assembly, wherein (1) the motor has a nominal operating speed in a range between 8000 and 10,000 revolutions per minute;
Dependencies are inferred from the claim text.