US4710609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for heating hair curlers by microwave energy
Assignee: Individual
•
Filing: 1986-03-27
•
Granted: 1987-12-01
•
Expires: 2006-03-27
Abstract
Abstract A process for heating a hollow hair curler having walls constructed of a plastic material transparent to microwave and impermeable to water vapor and containing a mass of wicking material, such as an open cell form rubber, permeable to microwave energy including (1) dispersing a quantity of water into the wicking material through a filling hole at an end of the curler and (2) subjecting the curler to microwave energy in a conventional microwave oven to heat the water dispersed in the wicking material and thereby heat the curler. The filling hole is left open to provide a vent allowing escape of steam to insure that excessive pressures are not generated within the curler during the heating process.
Inventors
- 👤 Michael Switlicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:37
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/12; A45D2/24; A45D4/00; A45D4/16; H; H05; H05B; H05B6/00; H05B6/64
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
108 words
A process of heating hair curlers constructed of a material through which microwaves may pass comprising the steps of: positioning a mass of wicking material within a cavity in a hair curler constructed of a material transparent to microwave energy and configured to be impermeable to water vapor along the sides thereof, said wicking material being constructed of a material which allows the passage of microwave energy therethrough; dispersing a quantity of water into said mass of wicking material contained in said cavity; subjecting said hair curler with said dispersed quantity of water to microwave radiation to heat said quantity of water and thereby heat said hair curler.
Claim 2
Dependent Claim
108 words
A process of heating hair curlers constructed of a material through which microwaves may pass comprising the steps of: positioning a mass of wicking material within a cavity in a hair curler constructed of a material transparent to microwave energy and configured to be impermeable to water vapor along the sides thereof, said wicking material being constructed of a material which allows the passage of microwave energy therethrough; dispersing a quantity of water into said mass of wicking material contained in said cavity; subjecting said hair curler with said dispersed quantity of water to microwave radiation to heat said quantity of water and thereby heat said hair curler.
Claim 3
Dependent Claim
53 words
The process according to claim 1 further including the step of providing said hair curler with vent means communicating with said cavity for allowing the escape of water vapor from the cavity insuring that excessive pressure will not be generated within said hair curler when the hair curler is subjected to microwave radiation.
References Cited (Backward Citations)
US1510359A
Cited
US4520832A
Cited
US4453554A
Cited
US4538630A
Cited
US4516011A
Cited
US4526184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-30 | 1991-06-01 | 1991-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-30 | 1995-06-01 | 1995-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-30 | 1999-06-01 | 1999-12-01 | $7700.00 | Window Closed / Lapsed |