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US 4,326,138 AGranted
Hair cutting apparatus
AssigneeYeda Research and Development Co. Ltd.
InventorShmuel Shtrikman
Life of this patent
Estimating the term…
Abstract
Hair cutting apparatus comprising a housing; an AC electromagnet fixed in the housing and defining a gap; at least one permanent magnet disposed for reciprocating motion in the gap; a mounting member pivotally mounting the at least one permanent magnet about an axis fixed in the housing; and apparatus for drivingly connecting the mounting member to a hair cutting head for reciprocal motion of cutting apparatus in the cutting head in response to reciprocating motion of the at least one permanent magnet in the gap.
Claims4
Hair cutting apparatus comprising:
- a housing;
- an AC electromagnet fixed in said housing and defining a fixed gap between facing stationary pole pieces thereof;
- a pair of oppositely magnetized permanent magnets arranged in side-by-side arrangement disposed for reciprocating motion in said gap and between said stationary pole pieces;
- a mounting member pivotally mounting said pair of oppositely magnetized permanent magnets about an axis fixed in said housing;
- and
- apparatus for drivingly connecting said mounting member to a hair cutting head for reciprocal motion of cutting apparatus in the cutting head in response to reciprocating motion of said at least one permanent magnet in said gap.
3 more elements
Dependencies are inferred from the claim text.