US3121880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual control toilet flusher
Assignee: Individual
•
Filing: 1959-02-24
•
Granted: 1964-02-25
•
Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Gelhar Willy Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:12
CPC Classifications
E; E03; E03D; E03D5/00; E03D5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
AN ELECTRONIC TOILET FLUSHER INCLUDING A PRIMARY ELECTRIC CIRCUIT OF RELATIVELY HIGH VOLTAGE INCLUDING A PAIR OF THYRATRONS, A NORMALLY OPEN AUXILIARY CIRCUIT OF LOW VOLTAGE, A TRANSFORMER BETWEEN THE TWO CIRCUITS, A THERMOSTAT IN THE AUXILIARY CIRCUIT, MEANS OPERATIVELY CONNECTING THE THERMOSTAT IN THE AUXILIARY CIRCUIT WITH THE THYRATRONS IN THE PRIMARY CIRCUIT, A PLATE RELAY IN THE PRIMARY CIRCUIT, A DOUBLE POLE THROW SWITCH IN THE PRIMARY CIRCUIT COACTING WITH THE RELAY, AN ELECTRICALLY ACTUATED SOLENOID FLUSHER CONTROLLING MECHANISM IN THE PRIMARY CIRCUIT AND OPERABLE AFTER THE AUXILIARY CIRCUIT IS CLOSED, AND SWITCH CLOSURE MEANS FOR THE AUXILIARY CIRCUIT ACTUATED WHEN THE TOILET IS OCCUPIED.
Claim 2
Dependent Claim
107 words
AN ELECTRONIC TOILET FLUSHER INCLUDING A PRIMARY ELECTRIC CIRCUIT OF RELATIVELY HIGH VOLTAGE INCLUDING A PAIR OF THYRATRONS, A NORMALLY OPEN AUXILIARY CIRCUIT OF LOW VOLTAGE, A TRANSFORMER BETWEEN THE TWO CIRCUITS, A THERMOSTAT IN THE AUXILIARY CIRCUIT, MEANS OPERATIVELY CONNECTING THE THERMOSTAT IN THE AUXILIARY CIRCUIT WITH THE THYRATRONS IN THE PRIMARY CIRCUIT, A PLATE RELAY IN THE PRIMARY CIRCUIT, A DOUBLE POLE THROW SWITCH IN THE PRIMARY CIRCUIT COACTING WITH THE RELAY, AN ELECTRICALLY ACTUATED SOLENOID FLUSHER CONTROLLING MECHANISM IN THE PRIMARY CIRCUIT AND OPERABLE AFTER THE AUXILIARY CIRCUIT IS CLOSED, AND SWITCH CLOSURE MEANS FOR THE AUXILIARY CIRCUIT ACTUATED WHEN THE TOILET IS OCCUPIED.
References Cited (Backward Citations)
US1120836A
Cited
US1634979A
Cited
US2061310A
Cited
US2396497A
Cited
US2549865A
Cited
US2409522A
Cited
US2738448A
Cited
US2658141A
Cited
US2813274A
Cited
US2858546A
Cited
US2881450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |