US3140720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid distribution control system
Assignee: Individual
•
Filing: 1961-01-24
•
Granted: 1964-07-14
•
Expires: 1981-01-24
Abstract
No abstract record available.
Inventors
- 👤 Lee M Griswold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:58
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/16; A01G25/162; G; G04; G04C; G04C23/00; G04C23/14; G04C23/34; Y; Y10; Y10T; Y10T137/00; Y10T137/1189; Y10T137/1842; Y10T137/1866; Y10T137/8593; Y10T137/86389; Y10T137/86397; Y10T137/86405; Y10T137/86421; Y10T137/86429
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A CONTROL SYSTEM FOR A WATER DISTRIBUTION SYSTEM HAVING A WATER SUPPLY PIPE, AND A PLURALITY OF BRANCH CONDUITS CONNECTED THEREWITH, AND A FLOW CONTROL VALVE IN EACH BRANCH CONDUIT, COMPRISING: CYCLICALLY OPERABLE MEANS TO OPEN AND CLOSE SAID FLOW CONTROL VALVES IN A PREDETERMINED SEQUENCE; AND A TIMING MEANS, INCLUDING A MOTOR-OPERATED TIMING SWITCH, AND A SEPARATE TIME SELECTOR CONTROL DEVICE ASSOCIATED WITH EACH VALVE AND CONNECTED TO SAID SWITCH TO SELECTIVELY SET THE DURATION OF THE PERIOD THAT ITS ASSOCIATED VALVE REMAINS OPEN, SAID TIMING MEANS BEING STRUCTURALLY INDEPENDENT OF AND OPERABLY CONNECTED WITH SAID CYCLICALLY OPERABLE MEANS.
Claim 2
Dependent Claim
100 words
A CONTROL SYSTEM FOR A WATER DISTRIBUTION SYSTEM HAVING A WATER SUPPLY PIPE, AND A PLURALITY OF BRANCH CONDUITS CONNECTED THEREWITH, AND A FLOW CONTROL VALVE IN EACH BRANCH CONDUIT, COMPRISING: CYCLICALLY OPERABLE MEANS TO OPEN AND CLOSE SAID FLOW CONTROL VALVES IN A PREDETERMINED SEQUENCE; AND A TIMING MEANS, INCLUDING A MOTOR-OPERATED TIMING SWITCH, AND A SEPARATE TIME SELECTOR CONTROL DEVICE ASSOCIATED WITH EACH VALVE AND CONNECTED TO SAID SWITCH TO SELECTIVELY SET THE DURATION OF THE PERIOD THAT ITS ASSOCIATED VALVE REMAINS OPEN, SAID TIMING MEANS BEING STRUCTURALLY INDEPENDENT OF AND OPERABLY CONNECTED WITH SAID CYCLICALLY OPERABLE MEANS.
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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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |