US3937230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric hairdressing iron
Assignee: Individual
•
Filing: 1974-10-04
•
Granted: 1976-02-10
•
Expires: 1994-10-04
Abstract
Abstract An hairdressing iron is described comprising a rod, a metal channel coaxial to the rod and attached to the latter in such a way as to swivel in relation to the latter around a transversal axis. The outer surface of the rod presents a longitudinal groove and the iron comprises a second channel adopted to fit longitudinally on the outer surface of the rod, said second channel comprising on its inner surface an elastic component capable of being inserted in the said longitudinal groove in order to retain the second channel on the rod. The outer surface of said second channel may be fitted with one or more rows of teeth projecting from that surface. An articulated U-link may also be provided in such a way as to be swivellable around the transversal swivelling axis for serving as a supporting member when it is in the unfolded position.
Inventors
- 👤 James Edward Kenny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:20
CPC Classifications
A; A45; A45D; A45D1/00; A45D1/02; A45D1/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
251 words
A hairdressing iron comprising: a. an elongated rod of a circular cross-section, b. a first elongated channel of arcuate cross-section coaxial with the rod, said first channel being adjacent said rod and having its inner curved surface facing said rod and its outer curved surface facing away from said rod, c. means pivotally connecting the first channel to the rod intermediate the ends of the rod, the axis of rotation of the pivotal means being transverse to the longitudinal axis of the rod so that the first channel can swivel from a position adjacent the rod to a position spaced from the rod, d. means providing a longitudinal groove on the outer surface of the rod on the side of the rod opposed to said first channel, e. a second channel of arcuate cross-section, said second channel being on the side of the rod opposite to said first channel and overlying the longitudinal groove, and f. means detachably securing the second channel to the rod, said means comprising an elastic member fixed to the surface of the second channel and dimensioned to be removably captive in said longitudinal groove, g. said second channel progressively increasing in thickness from both longitudinal edges towards its longitudinal center so that when the second channel is secured to the rod the rod and second channel will have a combined cross-sectional area greater than when the second channel is removed, whereby the hairdressing iron can form wide or narrow waves at the option of the user.
Claim 2
Dependent Claim
251 words
A hairdressing iron comprising: a. an elongated rod of a circular cross-section, b. a first elongated channel of arcuate cross-section coaxial with the rod, said first channel being adjacent said rod and having its inner curved surface facing said rod and its outer curved surface facing away from said rod, c. means pivotally connecting the first channel to the rod intermediate the ends of the rod, the axis of rotation of the pivotal means being transverse to the longitudinal axis of the rod so that the first channel can swivel from a position adjacent the rod to a position spaced from the rod, d. means providing a longitudinal groove on the outer surface of the rod on the side of the rod opposed to said first channel, e. a second channel of arcuate cross-section, said second channel being on the side of the rod opposite to said first channel and overlying the longitudinal groove, and f. means detachably securing the second channel to the rod, said means comprising an elastic member fixed to the surface of the second channel and dimensioned to be removably captive in said longitudinal groove, g. said second channel progressively increasing in thickness from both longitudinal edges towards its longitudinal center so that when the second channel is secured to the rod the rod and second channel will have a combined cross-sectional area greater than when the second channel is removed, whereby the hairdressing iron can form wide or narrow waves at the option of the user.
Claim 3
Dependent Claim
26 words
A hairdressing iron as set forth in claim 1 wherein at least one row of teeth projects away from the outer surface of said second channel.
Claim 4
Dependent Claim
91 words
A hairdressing iron as set forth in claim 1 in which a U-link is provided together with means for mounting the ends of said link on the same axis of rotation as the pivotal means connecting the first channel to the rod, said U-link being rotatable between a first position in which it lies adjacent the rod and a second position in which it extends away from the rod, said U-link in said second position acting as a support member to hold the pivotal connection means away from the supporting surface.
Claim 5
Dependent Claim
52 words
A hairdressing iron as set forth in claim 1 wherein the elastic member constitutes a leaf spring secured adjacent one end thereof to the inner surface of the second channel, the center of said leaf spring being bowed toward the rod and extending away from the inner surface of the second channel.
Claim 6
Dependent Claim
19 words
A hairdressing iron as set forth in claim 4 wherein the other end of the leaf spring is free.
References Cited (Backward Citations)
US1023716A
Cited
US1473312A
Cited
US1589183A
Cited
US1700876A
Cited
US1800271A
Cited
US3126895A
Cited
US3520311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-09 | 1979-08-11 | 1980-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-09 | 1983-08-11 | 1984-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-09 | 1987-08-11 | 1988-02-10 | $7700.00 | Window Closed / Lapsed |