US4028518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for superficially heating an adjacent body
Assignee: L'Oréal SA
•
Filing: 1975-06-13
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Granted: 1977-06-07
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Expires: 1995-06-13
Abstract
Abstract Device for superficially heating an adjacent body comprising a high frequency resonator means for producing an electromagnetic field inside said resonator at the resonant frequency of said resonator when said device is adjacent a surface to be heated, and means for conducting energy from said field to radiating means outside said resonator.
Inventors
- 👤 Georges Boudouris
- 👤 Gregoire Kalopissis
- 👤 Jean-Luc Leveque
- 👤 Paul Roussopoulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:24
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/02; A61N5/04; A61N1/00; A61N1/40; A61N1/403
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
79 words
Device for increasing the superficial temperature of a body such as the skin, which comprises a resonator including an electrically conductive jacket which is substantially closed in the electromagnetic sense of the term, a coil inside said jacket for emitting high frequency electromagnetic energy, coupling means for matching said high frequency energy to the resonant frequency of the resonator, and an applicator circuit connected to conduct the energy produced inside the jacket to an applicator located outside the jacket.
Claim 2
Dependent Claim
79 words
Device for increasing the superficial temperature of a body such as the skin, which comprises a resonator including an electrically conductive jacket which is substantially closed in the electromagnetic sense of the term, a coil inside said jacket for emitting high frequency electromagnetic energy, coupling means for matching said high frequency energy to the resonant frequency of the resonator, and an applicator circuit connected to conduct the energy produced inside the jacket to an applicator located outside the jacket.
Claim 3
Dependent Claim
32 words
Device as claimed in claim 1 in which the applicator circuit cmprises a coil inside the resonator subjected to the action of a high frequency electromagnetic field, and connected to said applicator.
Claim 4
Dependent Claim
49 words
Device as claimed in claim 2 in which the electrical properties of the electronic components of the device are such that the frequency of the electromagnetic energy is equal to the resonant frequency of the resonator when the applicator is positioned against a body which is to be heated.
Claim 5
Dependent Claim
37 words
Device as claimed in claim 1 in which the frequency of said electromagnetic energy corresponds to the resonant frequency of the resonator, while the applicator is connected through a condenser to a coil situated inside the jacket.
Claim 6
Dependent Claim
35 words
Device as claimed in claim 4 in which the impedance of the applicator circuit is so high that when the applicator is not against the body to be heated, the consumption of energy remains small.
Claim 7
Dependent Claim
21 words
Device as claimed in claim 1 in which the high frequency electromagnetic energy is derived from a generator outside the jacket.
Claim 8
Dependent Claim
17 words
Device as claimed in claim 1 in which the high frequency energy is generated inside the jacket.
Claim 9
Dependent Claim
30 words
Device as claimed in claim 1 which comprises, in addition to and adjacent the applicator, at least one electrode to which direct or low frequency electric currents may be supplied.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |