Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Spillway for discharging extraordinary floods at dams having at least two flood discharge structures










Image Number 8 for United States Patent #5195846.

For the purpose of providing a more economical alternative to conventional control gates for the quasi-permanent closure of all or part of the length of the overflow spillway of a dam except when discharging extraordinary floods, the invention consists of installing on the sill of the spillway a water level raising means comprising at least one heavy element, held by gravity on the sill, the water level raising means or its element being designed to overturn at a predetermined head corresponding to a headwater level not higher than the predetermined maximum water level in order to discharge extraordinary floods, smaller floods being discharged by a separate flood discharge structure.








 
 
  Recently Added Patents
Stage drive method and stage unit, exposure apparatus, and device manufacturing method
Fabric care compositions comprising front-end stability agents
Method for testing multi-chip stacked packages
Preamplifier-to-channel communication in a storage device
Stretchable elastic laminate having increased CD elongation zones and method of production
Graphical user interfaces and occlusion prevention for fisheye lenses with line segment foci
Method and system for migrating object update messages through synchronous data propagation
  Randomly Featured Patents
Method and device for controlling motor in powered seat
Dental X-ray image detection system
Tape loading device with joints at preselected spacing in rail slot
Electrooptical modulator
Time display system, method and device
Process for the dyeing of leather with anionic dyes and polyaminoamide resin as dyeing auxiliary
Color camera with stripe filter using controlled bias light for dark scene noise improvement
Method and apparatus for gate training in memory interfaces
All-wheel steering system and vehicle incorporating the same
Method for the production of menthol