Resources Contact Us Home
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
System and method for generating profile morphing using cephalometric tracing data
Mounting structure, electro-optical apparatus, and touch panel
Information obtaining and notification, data message forwarding and handover method and access node
Power semiconductor module
Metal-doped oxide, method of preparing the same, and solid oxide electrolyte using the metal-doped oxide
Process for making thermoplastic polymer pellets
Large scale data storage system with fault tolerance
  Randomly Featured Patents
Color photographic recording material
System and method for rapid isothermal gas expansion and compression for energy storage
Process for the preparation of imidazothiazolone derivatives
Dial portion of electronic device
Medical emulsion for lubrication and delivery of drugs
Microprocessor allowing simultaneous instruction execution and DMA transfer
Method for manufacturing dual damascene structure with a trench formed first
Headrest folding mechanism
Speaker mounting
Convertible highway and rail freight vehicle