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1. US3889372 - ELECTRIC DRY SHAVER BLADE ASSEMBLY

Office United States of America
Application Number 05393177
Application Date 30.08.1973
Publication Number 3889372
Publication Date 17.06.1975
Grant Number 3889372
Grant Date 17.06.1975
Publication Kind A
IPC
B26B 19/14
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
19Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
14of the rotary-cutter type; Cutting heads therefor; Cutters therefor
B26B 19/38
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
19Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
38Details of, or accessories for, hair clippers or dry shavers, e.g. housings, casings, grips or guards
CPC
B26B 19/143
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
19Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
14of the rotary-cutter type; Cutting heads therefor; Cutters therefor
143Details of outer cutters
B26B 19/14
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
19Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
14of the rotary-cutter type; Cutting heads therefor; Cutters therefor
B26B 19/384
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
19Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
38Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
384Dry-shaver foils; Manufacture thereof
Applicants MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Inventors Sakai
Priority Data 1972086949 30.08.1972 JP
47129080U 09.11.1972 JP
Title
(EN) ELECTRIC DRY SHAVER BLADE ASSEMBLY
Abstract
(EN)

A blade assembly for electric dry shaver including an outer blade fixed to the shaver body and an inner blade rotated to shave hairs in cooperation with the outer blade, wherein the outer blade has a plurality of slits extending substantially in radial direction. The inner blade and the slits in the outer blade are so arranged that the intersection of their cutting edge lines will define an optimum hair holding or cutting angle which is constant at all positions over the blade surface. The slits in the outer blade may be arranged in a plurality of spiral arrays extending between the center and the outer periphery of the outer blade.