US2021015232A1PendingUtilityA1
Permanent wave rod
Est. expiryMar 26, 2038(~11.7 yrs left)· nominal 20-yr term from priority
Inventors:Takao Ishikura
A45D 2/20A45D 2/146
27
PatentIndex Score
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Cited by
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Claims
Abstract
A perming rod (1) having an outer peripheral surface around which hairs are to be wound includes a columnar core, an elastic portion (11) covering an outer peripheral surface of the core (10) and formed of an elastic body, a waterproof surface portion (12) covering an outer peripheral surface of the elastic portion (11), and pins (15) attached to each end portion of the elastic portion (11). With this configuration, the hairs can be held with suitable tension by easy treatment. Thus, beautiful permanent waves can be obtained without providing uncomfortable pain to a customer.
Claims
exact text as granted — not AI-modified1 . A perming rod having an outer peripheral surface around which a hair is to be wound, comprising:
a columnar core; an elastic portion covering an outer peripheral surface of the core and formed of an elastic body; a waterproof surface portion covering an outer peripheral surface of the elastic portion; and a pin attached to each end portion of the elastic portion.
2 . The perming rod according to claim 1 , wherein
the elastic portion is elastically deformable in a radial direction and a circumferential direction.
3 . The perming rod according to claim 1 , wherein
the surface portion is formed continuously from an outer peripheral surface of the elastic body to cover end portions of the core and the elastic portion.
4 . The perming rod according to claim 1 , wherein
the pin is formed in a U-shape in such a manner that a rod-shaped body is bent, and both end portions of the pin are inserted into the elastic portion.
5 . The perming rod according to claim 1 , wherein
the surface portion is made of a rubber material.
6 . The perming rod according to claim 1 , wherein
an electronic circuit configured to output information on the perming rod is embedded in the elastic portion.Join the waitlist — get patent alerts
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