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US3566884A Expired / Lapsed US ⏱️ 0.0 years remaining

Hairwinder for use in curling hair

Assignee: Bristol Myers Co
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Filing: 1969-06-05
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Granted: 1971-03-02
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Expires: 1989-06-05
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Abstract

Abstract A hair winder in which a tubular metal cap is inserted into a tubular metal container in spaced relation and wherein the cap has an open end of deformed S-shape which is in contact with the open end of the container, whereby an enclosed space is formed between the cap and container which is filled with a heataccumulating substance adapted to be melted by heating before the hair winder is used, whereby heat is transferred to an outer curler element surrounding the metal container. An annular double wall metal closing ring of U-shaped section clampingly engages the container and the cap to form a hermetic sealed joint at their contacting open ends and the closing ring has an outer projection to anchor the curler element to the ring.

Inventors

  • 👤 Arne Bybjerg Pedersen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 10:48
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/36; A45D2/362

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 216 words
A hairwinder for use in curling hair comprising a tubular hair curler element with external corrugations thereon, a tubular metal container member within the curler element and having a closed end and an open end, a tubular metal cap member having a closed and an open end, said cap member projecting into said container member in spaced relation therewith such that the open ends of the members are at substantially the same level, one of said members being deformed at its open end to contact the other of said members at its open end whereby an enclosed space is formed between the members, a heat-accumulating substance in said enclosed space adapted to be melted by heating whereby heat is transferred to said curler element before the hairwinder is used, and an annular double wall metal closed ring of U-shape section and including an outer wall in contact with the container member and an inner wall in contact with the cap member to form a hermetic sealed joint at the contacting open ends of the members, said metal closed ring including means cooperating with said hair curler element to permanently anchor said ring with the hair curler element and said anchoring means comprising an outwardly projecting portion on said ring is embedded in said hair curler element.
Claim 2
Dependent Claim 216 words
A hairwinder for use in curling hair comprising a tubular hair curler element with external corrugations thereon, a tubular metal container member within the curler element and having a closed end and an open end, a tubular metal cap member having a closed and an open end, said cap member projecting into said container member in spaced relation therewith such that the open ends of the members are at substantially the same level, one of said members being deformed at its open end to contact the other of said members at its open end whereby an enclosed space is formed between the members, a heat-accumulating substance in said enclosed space adapted to be melted by heating whereby heat is transferred to said curler element before the hairwinder is used, and an annular double wall metal closed ring of U-shape section and including an outer wall in contact with the container member and an inner wall in contact with the cap member to form a hermetic sealed joint at the contacting open ends of the members, said metal closed ring including means cooperating with said hair curler element to permanently anchor said ring with the hair curler element and said anchoring means comprising an outwardly projecting portion on said ring is embedded in said hair curler element.
Claim 3
Dependent Claim 23 words
A hairwinder as claimed in claim 1, wherein said outwardly projecting portion extends annularly on said outer wall at the free edge thereof.

References Cited (Backward Citations)

US2257697A Cited
US2350720A Cited
US3228403A Cited
US3257541A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-03-01 1974-08-31 1975-03-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-01 1978-08-31 1979-03-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-01 1982-08-31 1983-03-02 $7700.00 Window Closed / Lapsed

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