US3703246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level control
Assignee: Individual
•
Filing: 1970-03-19
•
Granted: 1972-11-21
•
Expires: 1990-03-19
Abstract
Abstract A liquid level sensing switching device comprising a magnetic float contained in a vertical channel and a magnetic reed switch positionable at calibrated levels adjacent the channel and means to dispense liquid from an associated container in quantities measured by the operation of said switch when the magnetic float drops from a predetermined level to the position of the switch.
Inventors
- 👤 John Horak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:07
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/12; G01; G01F; G01F23/00; G01F23/30; G01F23/64; G01F23/68; G01F23/70; F; F17; F17C; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/0408; F17C2250/0413
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
53 words
A liquid dispensing system according to claim 1 wherein said first control circuit compises an isolation relay with its secondary connected to sad switch and its relay contact in series with an eletrical line that energizes said dispensing valve to the open position whereby closing said switch causes said dispensing valve to close.
References Cited (Backward Citations)
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US2701912A
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US3114478A
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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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |