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Class Information
Number: 405/99
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Water gate or adjustable weir > Swinging
Description: Method or apparatus wherein the water gate turns about a pivot.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7114878 |
Irrigation gate system |
Oct. 3, 2006 |
| 7037039 |
Method and apparatus for an improved lock and dam assembly |
May. 2, 2006 |
| 6779947 |
Gate systems and methods for regulating tidal flows |
Aug. 24, 2004 |
| 6719491 |
Fluid level control system |
Apr. 13, 2004 |
| 6692187 |
Flood gate for door |
Feb. 17, 2004 |
| 6485231 |
Foundation flood gate with ventilation |
Nov. 26, 2002 |
| 6171023 |
Water control gate |
Jan. 9, 2001 |
| 5678956 |
Navigational bypass, gate and pump device for use in water |
Oct. 21, 1997 |
| 5577863 |
Self-Actuating sluice gate |
Nov. 26, 1996 |
| 5516230 |
Gate for controlling upstream water level |
May. 14, 1996 |
| 5222834 |
Collapsible safety prop for waterway dams |
Jun. 29, 1993 |
| 5211700 |
Movable dam gate for regulating water in a navigable pass |
May. 18, 1993 |
| 5199812 |
Hydraulic fixed strut game |
Apr. 6, 1993 |
| 5178490 |
Wicket dam lifting module |
Jan. 12, 1993 |
| 4830051 |
Rotary filling and emptying valve |
May. 16, 1989 |
| 4735525 |
Irrigation channel gates |
Apr. 5, 1988 |
| 4606672 |
Constant upstream level gate |
Aug. 19, 1986 |
| 4576512 |
Rotary sluice gate |
Mar. 18, 1986 |
| 4349296 |
Irrigation ditch gate |
Sep. 14, 1982 |
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