Patent US4041961A successfully refreshed from Google Patents.
US4041961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair curler with sintered desiccant body
Assignee: Individual
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Filing: 1976-02-09
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Granted: 1977-08-16
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Expires: 1996-02-09
Abstract
Abstract A hair treating device is disclosed in the form of a roller or curler and provided with a unitary, porous body of desiccant for adsorbing or desorbing water. The desiccant body is a sintered composite of granules of desiccant, such as silica gel, and a binder comprising particles of a high temperature organic polymeric material, such as nylon. The roller is provided with a heat storage core and with a suitable cover. It is effective to accelerate hair drying and to produce longer lasting curls with improved softness and finish.
Inventors
- 👤 Amos J. Shaler
- 👤 Daniel C. McLean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:36
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/36; A45D2/365
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
119 words
A hair treating device adapted to receive a hank of hair, said device including a porous body comprised of an array of granules of desiccant and particles of an organic polymeric binder attached to said granules with certain of said particles bridging between contiguous granules and bonding therebetween at discrete regions throughout the body to form a self-sustaining body, said particles of binder having a smaller size than the desiccant granules, said granules defining interstices which open into each other between said bonded regions for admission of water vapor to the surface of granules in the interior of said porous body, and a cover disposed over the exterior of said porous body, said cover being permeable to water vapor.
Claim 2
Dependent Claim
119 words
A hair treating device adapted to receive a hank of hair, said device including a porous body comprised of an array of granules of desiccant and particles of an organic polymeric binder attached to said granules with certain of said particles bridging between contiguous granules and bonding therebetween at discrete regions throughout the body to form a self-sustaining body, said particles of binder having a smaller size than the desiccant granules, said granules defining interstices which open into each other between said bonded regions for admission of water vapor to the surface of granules in the interior of said porous body, and a cover disposed over the exterior of said porous body, said cover being permeable to water vapor.
Claim 3
Dependent Claim
14 words
The invention as defined in claim 1 wherein said body is a hollow cylinder.
Claim 4
Dependent Claim
21 words
The invention as defined in claim 1 wherein said desiccant is a silica gel and said polymeric material is a nylon.
Claim 5
Dependent Claim
36 words
The invention as defined in claim 1 wherein said body is plate-like, and means for attaching said body to a hair roller supporting a hank of hair, with said body partially surrounding said hank of hair.
Claim 6
Dependent Claim
22 words
The invention as defined in claim 2 wherein the wall of said hollow cylinder has a thickness of at least 3/16 inch.
Claim 7
Dependent Claim
40 words
The invention as defined in claim 3 wherein the silica gel granules are in the size range of 8 to 60 mesh and the bonding regions are formed of a nylon powder having a particle size less than 200 mesh.
Claim 8
Dependent Claim
33 words
The invention as defined in claim 2 wherein said cylindrical array is a hollow cylinder, a core being disposed within said hollow cylinder and in engagement with the inner wall of said body.
Claim 9
Dependent Claim
17 words
The invention as defined in claim 7 wherein said core is a cylindrical body of a nylon.
Claim 10
Dependent Claim
26 words
The invention as defined in claim 8 wherein said cylindrical body of a nylon defines an axially extending passage adapted to receive a removable heater element.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |