US4792702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch for iontophoresing cation and anion
Assignee: KEN HAYASHIBARA 9-8 4-CHOME HIGASHI-FURUMATSU OKAYAMA-SHI OKAYAMA JAPAN
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Filing: 1987-10-07
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Granted: 1988-12-20
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Expires: 2007-10-07
Abstract
Abstract Disclosed is a novel switch for iontophoresing cation and anion, comprising an on/off switch for power circuit; a selector switch for reversing the output current from an iontophoretic low-frequency oscillator; and a rotary member actuating said on/off- and selector-switches when turned.
Inventors
- 👤 Kazumi Masaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:01
CPC Classifications
H; H01; H01H; H01H9/00; A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/0404; A61N1/0408; A61N1/0428; A61N1/18; A61N1/32; A61N1/325; H01H19/00; H01H19/54; H01H19/60; H01H19/62
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
87 words
A switch directed to use in a low-frequency oscillator to iontophorese 6-[2-[(5-bromo-2-pyridyl) amino] vinyl]-1-ethyl-2-picolinium iodide into the scalp, comprising: an on/off switch to control a power circuit of an iontophoretic low-frequency oscillator; a selector switch to reverse an output current from said iontophoretic low-frequency oscillator in such manner that a positive potential and a negative potential energize an electrode containing 6-[2-[(5-bromo-2-pyridyl) amino] vinyl]-1-ethyl-2-picolinium iodine at a duration ratio of 1:2 or 1:3 during one selection cycle; and a rotary member actuating said on/off- and selector-switches when turned.
Claim 2
Dependent Claim
87 words
A switch directed to use in a low-frequency oscillator to iontophorese 6-[2-[(5-bromo-2-pyridyl) amino] vinyl]-1-ethyl-2-picolinium iodide into the scalp, comprising: an on/off switch to control a power circuit of an iontophoretic low-frequency oscillator; a selector switch to reverse an output current from said iontophoretic low-frequency oscillator in such manner that a positive potential and a negative potential energize an electrode containing 6-[2-[(5-bromo-2-pyridyl) amino] vinyl]-1-ethyl-2-picolinium iodine at a duration ratio of 1:2 or 1:3 during one selection cycle; and a rotary member actuating said on/off- and selector-switches when turned.
Claim 3
Dependent Claim
30 words
The switch of claim 1, wherein said rotary member comprises a plurality of cam plate provided on a rotary shaft, said cam plates actuating sain on/off- and selector-switches when turned.
Claim 4
Dependent Claim
52 words
The switch of claim 1, wherein said rotary member comprises a rotary disc including a plurality of contact terminal radially provided on the surface of said rotary disc, said rotary disc actuating slidable pieces of said on/off- and selector-switches when turned, said slidable pieces being provided in contact with said rotary disc.
Claim 5
Dependent Claim
56 words
The switch of claim 1, wherein said rotary member comprises a rotary cylinder including a plurality of contact terminal provided on the circumferential surface of said rotary cylinder, said rotary cylinder actuating slidable pieces of said on/off- and selector-switches when turned, said slidable pieces being provided in contact with the circumferential surface of said rotary cylinder.
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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) | 1991-12-20 | 1992-06-20 | 1992-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-20 | 1996-06-20 | 1996-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-20 | 2000-06-20 | 2000-12-20 | $7700.00 | Window Closed / Lapsed |