Patent US4032822A successfully refreshed from Google Patents.
US4032822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic flush control setup in flush toilet
Assignee: Individual
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Filing: 1975-12-18
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Granted: 1977-06-28
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Expires: 1995-12-18
Abstract
Abstract An electromagnetic flush control setup employed in a flush toilet comprising an inducing terminal, an amplifier coupled with a trigger circuit, and an electromagnet setting. The inducing terminal is placed beneath the ringed cover of a flush toilet whereby to induce therein, in accordance with the variation of electrostatic field, a small signal which is then amplified, transduced and rectified to drive a relay so as to charge a capacitor from a DC source. And subsequently with vanishing of the signal, the charged capacitor reversely discharges whereby to initiate a SCR making the electromagnet work and exert up the outlet valve of water box. Upon exhaustion of the capacitor, SCR and electromagnet repose thus accomplishing the flush process.
Inventors
- 👤 Yee Kyar Un
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:53
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/945; H03K17/955
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
260 words
An electromagnet flush control setup for use in a flush toilet comprising: an inducing terminal made of conductive metal; an amplifier for amplifying a signal induced in said inducing terminal; a transformer having a primary and a secondary winding, said primary winding connected to the output of said amplifier; a rectifier having a first end connected to said secondary winding; a transistor having a base lead connected to the second end of said rectifier, whereby said transistor is biased to an on state by the presence of a signal at said inducing terminal; a D.C. power source; a relay connected in series with said D.C. source and said transistor, whereby said transistor being in an on state causes said relay to move from a first position to a second position; a capacitor connected to be charged by said D.C. source when said relay is in said second position; an SCR having its gate connected to said capacitor when said relay is in said first position; an A.C. power source; an electromagnet coil connected in series with said A.C. source and said SCR, whereby said capacitor discharges through said SCR when said relay moves back to said first position, causing said SCR to conduct and energize said coil; flush means activated by said coils to flush the toilet, whereby the presence of a human body on the toilet provides said signal in the inducing terminal and thereby causes said capacitor to be charged, and the termination of said signal causes said coils to be energized and the toilet to be flushed.
Claim 2
Dependent Claim
260 words
An electromagnet flush control setup for use in a flush toilet comprising: an inducing terminal made of conductive metal; an amplifier for amplifying a signal induced in said inducing terminal; a transformer having a primary and a secondary winding, said primary winding connected to the output of said amplifier; a rectifier having a first end connected to said secondary winding; a transistor having a base lead connected to the second end of said rectifier, whereby said transistor is biased to an on state by the presence of a signal at said inducing terminal; a D.C. power source; a relay connected in series with said D.C. source and said transistor, whereby said transistor being in an on state causes said relay to move from a first position to a second position; a capacitor connected to be charged by said D.C. source when said relay is in said second position; an SCR having its gate connected to said capacitor when said relay is in said first position; an A.C. power source; an electromagnet coil connected in series with said A.C. source and said SCR, whereby said capacitor discharges through said SCR when said relay moves back to said first position, causing said SCR to conduct and energize said coil; flush means activated by said coils to flush the toilet, whereby the presence of a human body on the toilet provides said signal in the inducing terminal and thereby causes said capacitor to be charged, and the termination of said signal causes said coils to be energized and the toilet to be flushed.
Claim 3
Dependent Claim
38 words
The control setup as claimed in claim 1, wherein said inducing terminal is placed beneath the ringed cover of a flush toilet, and one end of said inducing terminal is connected to said amplifier by a shielded wire.
Claim 4
Dependent Claim
39 words
The control setup as claimed in claim 1, wherein said electromagnet coil is situated above the water box of a flush toilet, and said flush means includes a magnet tongue connected with the outlet valve of the water box.
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) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |