Patent US4478534A successfully refreshed from Google Patents.
US4478534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flood control system
Assignee: Individual
•
Filing: 1981-04-07
•
Granted: 1984-10-23
•
Expires: 2001-04-07
Abstract
Abstract A system for controlling and preventing flooding of areas adjacent a waterway includes a multiplicity of interconnected flood gates located in the banks of the waterway. The system includes water level sensors and devices for moving the floodgates in response to signals from the water level sensors.
Inventors
- 👤 Ivy McIlwain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:03
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/10; E02B3/102; E02B3/104; E02B3/041; E02B7/00; E02B7/20; E02B7/205; E02B3/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A flood control and waterway diverting means comprising: housings embedded in banks along both sides of a portion of a waterway and further housings embedded in both sides of banks along a portion of a second waterway which second waterway intersects said first waterway, a substantial portion of said housings being located beneath the normal water level of the waterways; a multiplicity of floodgates mounted in said housings to move up and down for containing water in both waterways; some of said floodgates spanning said first waterway for diverting at least a portion of the water from said first waterway into said second waterway when they are activated; interlocking means on each of said floodgates for connecting a floodgate to an adjacent floodgate; floodgate hydraulic moving means for moving said floodgates up and down; and water level sensing float means connected to said floodgate hydraulic moving means for actuating said hydraulic moving means when water in said waterway reaches a predetermined level.
Claim 2
Dependent Claim
162 words
A flood control and waterway diverting means comprising: housings embedded in banks along both sides of a portion of a waterway and further housings embedded in both sides of banks along a portion of a second waterway which second waterway intersects said first waterway, a substantial portion of said housings being located beneath the normal water level of the waterways; a multiplicity of floodgates mounted in said housings to move up and down for containing water in both waterways; some of said floodgates spanning said first waterway for diverting at least a portion of the water from said first waterway into said second waterway when they are activated; interlocking means on each of said floodgates for connecting a floodgate to an adjacent floodgate; floodgate hydraulic moving means for moving said floodgates up and down; and water level sensing float means connected to said floodgate hydraulic moving means for actuating said hydraulic moving means when water in said waterway reaches a predetermined level.
References Cited (Backward Citations)
US247030A
Cited
US2434457A
Cited
DE1265063B
Cited
US3354655A
Cited
SU608876A1
Cited
US4167358A
Cited
US4252461A
Cited
US4310262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |