US3658071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair roller with range temperature indicator
Assignee: Westinghouse Electric Corp
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Filing: 1970-07-28
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Granted: 1972-04-25
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Expires: 1990-07-28
Abstract
Abstract The invention provides a hair curler wherein a bimetallic element is utilized as a temperature indicating means in conjunction with a dial arrangement so as to provide a range of temperatures for user selection based on her personal hair and/or skin characteristics.
Inventors
- 👤 Robert A Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:34
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/36; A45D4/00; A45D4/16
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
140 words
A hair roller including: a. an integrally molded cylindrical, substantially hollow body; b. an integrally molded end cap for said body, said end cap displaced from the termination of said body; c. a space provided between said end cap and said termination of said body; d. a stepped bore provided by said space; including an enlarged bore portion, e. an index means disposed over said end cap and substantially enclosing said space; f. said index means being disposed in said enlarged bore portion and being maintained in integral molded cylindrical, substantially hollow body by an inturned flange formed in the outer termination of said enlarged bore portion; g. a bimetallic spiral thermostatic means disposed in said space; and h. an end of said bimetallic spiral means providing an indicator for readout of a series of temperatures of said hair roller.
Claim 2
Dependent Claim
140 words
A hair roller including: a. an integrally molded cylindrical, substantially hollow body; b. an integrally molded end cap for said body, said end cap displaced from the termination of said body; c. a space provided between said end cap and said termination of said body; d. a stepped bore provided by said space; including an enlarged bore portion, e. an index means disposed over said end cap and substantially enclosing said space; f. said index means being disposed in said enlarged bore portion and being maintained in integral molded cylindrical, substantially hollow body by an inturned flange formed in the outer termination of said enlarged bore portion; g. a bimetallic spiral thermostatic means disposed in said space; and h. an end of said bimetallic spiral means providing an indicator for readout of a series of temperatures of said hair roller.
Claim 3
Dependent Claim
60 words
The hair roller set out in claim 1 wherein: a. said index means is rotatable in said enlarged bore portion for positioning with respect to said indicator formed by said bimetallic spiral means; and b. said inturned flange is then formed for holding said index means in a selected position relative to said indicator formed by said bimetallic spiral means.
Claim 4
Dependent Claim
42 words
The hair roller set out in claim 1 wherein: a. said bimetallic spiral means has an inner and an outer end; b. said inner end is fixed to said body; and c. said outer end provides a movable indicator for indicating temperatures.
Claim 5
Dependent Claim
31 words
The hair roller set out in claim 3 wherein: a. said end cap includes an integral stem; and b. said stem fixedly mounts said fixed inner end of said bimetallic spiral.
Claim 6
Dependent Claim
30 words
The hair roller set out in claim 4 wherein: a. said stem includes groove means; and b. said fixed end of said bimetallic spiral is disposed in said groove means.
Claim 7
Dependent Claim
91 words
A hair roller including: a. a cylindrical, substantially hollow body; b. an end cap for said body displaced from the termination of said body; c. a space provided between said end cap and said termination of said body; d. an index means placed over said end cap and enclosing said space; e. a bimetallic spiral thermostat means disposed in said space; f. said bimetallic spiral thermostat means including a moving end, said moving end providing a pointer means for indicating for readout of a series of temperatures of said hair roller.
Claim 8
Dependent Claim
91 words
A hair roller including: a. a cylindrical, substantially hollow body; b. an end cap for said body displaced from the termination of said body; c. a space provided between said end cap and said termination of said body; d. an index means placed over said end cap and enclosing said space; e. a bimetallic spiral thermostat means disposed in said space; f. said bimetallic spiral thermostat means including a moving end, said moving end providing a pointer means for indicating for readout of a series of temperatures of said hair roller.
Claim 9
Dependent Claim
53 words
A hair roller including: a. a temperature indicating means; b. a hair roller body; c. said temperature indicating means mounted in said body and including a pointer means for movement proportional to an attained temperature; and d. an index means for relating attained temperature to a desired temperature range for hair curling purposes.
Claim 10
Dependent Claim
53 words
A hair roller including: a. a temperature indicating means; b. a hair roller body; c. said temperature indicating means mounted in said body and including a pointer means for movement proportional to an attained temperature; and d. an index means for relating attained temperature to a desired temperature range for hair curling purposes.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |