US3713455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable type hair rollers
Assignee: Unisys Corp
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Filing: 1971-07-19
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Granted: 1973-01-30
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Expires: 1991-07-19
Abstract
Abstract A segmentally constructed cylindrically-shaped hair roller is described, which includes a plurality of flexible, resilient, arcuately-shaped segments. Each of the segments have longitudinally extending side edges respectively provided with an interlocking surface. Each of the side edges of each of the segments may thus be interlocked with one of the side edges of the next adjacent segment. In the process of doing so the ends of each of the interlocking surfaces of each segment are aligned with the corresponding ends of the interlocking surfaces of at least one of the other segments, and longitudinally slidably engaged. For example, a two segment roller may then be constructed by aligning each of the interlocking surfaces of one segment with the corresponding interlocking surfaces of another segment, and longitudinally slidably engaging the aligned surfaces.
Inventors
- 👤 N Chen
- 👤 W Omohundro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:20
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/12; A45D2/24
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
50 words
A hair roller segment for an interlocking segmented cylindrical shaped hair roller, comprising: a flexible resilient arcuately shaped member, the member having longitudinally extending side edges, and each of the side edges having an interlocking surface contoured for interlocking longitudinal slidable engagement with a like member of the hair roller.
Claim 2
Dependent Claim
50 words
A hair roller segment for an interlocking segmented cylindrical shaped hair roller, comprising: a flexible resilient arcuately shaped member, the member having longitudinally extending side edges, and each of the side edges having an interlocking surface contoured for interlocking longitudinal slidable engagement with a like member of the hair roller.
Claim 3
Dependent Claim
50 words
A hair roller segment for an interlocking segmented cylindrical shaped hair roller, comprising: a flexible resilient arcuately shaped member, the member having longitudinally extending side edges, and each of the side edges having an interlocking surface contoured for interlocking longitudinal slidable engagement with a like member of the hair roller.
Claim 4
Dependent Claim
50 words
A hair roller segment for an interlocking segmented cylindrical shaped hair roller, comprising: a flexible resilient arcuately shaped member, the member having longitudinally extending side edges, and each of the side edges having an interlocking surface contoured for interlocking longitudinal slidable engagement with a like member of the hair roller.
Claim 5
Dependent Claim
31 words
The hair roller according to claim 1 wherein said side edge surfaces are of complementary configuration and respectively contoured for interlocking slidable engagement with a like member of the hair roller.
Claim 6
Dependent Claim
34 words
The hair roller segment according to claim 1 wherein one of the side edge surfaces includes means for fitting said one of the side edge surfaces with a like member of the hair roller.
Claim 7
Dependent Claim
40 words
The hair roller segment according to claim 1 wherein one of the side edges has a tongue and the other side edge has a groove, and said surfaces include the surface of the tongue and the surface of the groove.
Claim 8
Dependent Claim
30 words
The hair roller segment according to claim 4 wherein the tongue and groove of the segment are respectively longitudinally slidably engageable with a groove and tongue of a like segment.
Claim 9
Dependent Claim
44 words
A segmentally constructed cylindrically shaped hair roller, comprising: a plurality of flexible resilient arcuately shaped seGments, each of the segments having longitudinally extending side edges respectively interlockingly longitudinally slidably engaged with one of the side edges of the next adjacent segment of the roller.
Claim 10
Dependent Claim
44 words
A segmentally constructed cylindrically shaped hair roller, comprising: a plurality of flexible resilient arcuately shaped seGments, each of the segments having longitudinally extending side edges respectively interlockingly longitudinally slidably engaged with one of the side edges of the next adjacent segment of the roller.
Claim 11
Dependent Claim
28 words
The hair roller according to claim 6 wherein one of the surfaces of the respective engaged side edges includes means for fitting said engaged side edge surfaces together.
Claim 12
Dependent Claim
37 words
The hair roller according to claim 6 wherein each of the side edges of each of the segments has a surface of complementary configuration with at least one of the side edges of the next adjacent segment.
Claim 13
Dependent Claim
19 words
The hair roller according to claim 6 wherein each of the side edges has a surface of keyhole-shaped cross-section.
Claim 14
Dependent Claim
48 words
The hair roller according to claim 6 wherein one of the side edges of each segment has a tongue and the other side edge of each segment has a groove, and the tongue of each segment is longitudinally slidably engaged with the groove of the next adjacent segment.
Claim 15
Dependent Claim
26 words
The hair roller segment according to claim 1 wherein the segment has an inner surface, and a plurality of longitudinally extending ridges defining the inner surface.
Claim 16
Independent Claim
72 words
A method of constructing a cylindrically shaped hair roller from a plurality of flexible resilient hair roller segments each having longitudinally extending side edges respectively including a longitudinally extending interlocking surface, comprising: aligning an end of each of the interlocking surfaces of each segment with one of the ends of one of the interlocking surfaces of at least one of the other segments, and longitudinally slidably engaging the interlocking surfaces so aligned.
Claim 17
Independent Claim
72 words
A method of constructing a cylindrically shaped hair roller from a plurality of flexible resilient hair roller segments each having longitudinally extending side edges respectively including a longitudinally extending interlocking surface, comprising: aligning an end of each of the interlocking surfaces of each segment with one of the ends of one of the interlocking surfaces of at least one of the other segments, and longitudinally slidably engaging the interlocking surfaces so aligned.
Claim 18
Dependent Claim
21 words
The method according to claim 12 wherein the aligning step includes the step of flexing at least one of the segments.
Claim 19
Dependent Claim
35 words
The method according to claim 12 wherein the aligning step includes the step of aligning each of the interlocking surfaces of one segment with each of the interlocking surfaces of one of the other segments.
Claim 20
Dependent Claim
52 words
The method according to claim 12 wherein the aligning step includes the step of aligning one of the interlocking surfaces of one segment with one of the interlocking surfaces of another segment, and the engaging step includes the step of longitudinally slidably engaging the interlocking surfaces of said one and another segments.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |