Title of Invention

RIVER WATER IMPOUNDING SYSTEM

Abstract A water impounding system from a river or a rivu1et to capture its f1.00d f1.ows into a cana1. which crosses a river 1.ike a via-duct~ The canal acts 1.ike an aqua-duct carrying, transporting and distributing water~ The Impounding system is an arrangement to maximize the diversion of f1.00d f1.ows into the cana1.. This is done by a system of mini-reservoir, funne1.ing arrangements at typical1.y 3 to 5 km from the cana1., upstream. The impounded water upstream is brought the main canal (runnihg as a bridge across the river)with feeder cana1.s or large feeder pipes. The water from flood flows is truly impounded as it wi1.l not issue back into the river and the silt acc1m'lation will be miniM1_, as I a filtering system could be deployed before the flow into the feeder cana1s or feeder pipes
Full Text

A. Field of Invention
This invention relates to Hydrology. Further the invention relates to impounding of water into a canal which crosses a river.
B. Description of the Invention
A man made canal or a water channel is constructed to cross a river or a rivulet or a tributory for the purpose of impounding water into it at the time of its flooding.
Generally a tributory or a river at a height of 1000' or 1500' has a slope between 1/100 to 1/300 as it flows down from the foot of the hills towards the plains and then to the sea.
A canal referred to as Main Canal intercepts a river to impound its flood water to the maximiom is designed to cross the river typically at right angles and therefore also referred to as the Trasverse canal. However this canal cannot be at the same height as that of the river when it crosses it. To facilitate the canal to capture the flood water it will be fed by one or more feeder canals or feeder pipes which impound water at the upper reaches & transport them into the Trasverse Canal.
C. FIGURE 1- Perspective view of RIVER WATER IMPOUNDING SYSTEM
(RWIS):The Transverse(main)canal(6) is 'bridged' across the river(8)and the 'Feeder canals'(5) or feeder pipes(4) issue into the main canal transporting water from the upper reaches(3). At the upper reaches, funnel arrangements(2) for feeder pipes and mini reservoirs(1) at the mouth of feeder canals will maximize water impounding at the time of flooding.

D^FIGURE 2 - Top view of IWIS: Typically the feeder-canals(2) or feeder-pipes(4) will be about 2 to 6 kms long(Z) from the main canal(3) depending on the slope of the river(6)and other geographical features. Mini resovoir(1) and funnelling arrangements(5) are shown for the feeder canals and feeder pipes respectively in the upper reaches of the river. At points A,B,C the typical elevations will be 300, 320 and 330 meters respectively.
£• FIGURE 3 Sectional view of PWIS: The need to impound water from the upper reaches and trasport them to the main canal crossing the river at a lower elevation through the feeder canals/pipes is seen from this diagram. The normal level(3)and the flood level(4) of the river from the river bed(5),positioning (bottom) of the main canal(6), the cross sections of the feeder pipes and feeder canals are shown in the Sectional View. Typical values of R,S,H,F/N are 2,5,15,5 and 10 meters respectively
F.AN EXAMPLE
A Main Canal of 15 meters depth crosses a river the bottom of which is at a height of 15 metres from River bed. This is fed by a feeder canal of 5 meters depth or feeder pipes of two meters diameter.
The top of the feeder canal at the crossing point(the location of transverse/main canal across the river) will be 35 meters above the river bed. The Feeder canal will branch out from the river from its upper reaches, which is at a 35 metres higher elevation. For a river/tributory with a slope of 1/100, the feeder canal will have a length of 3.5KM and therefore will be fed by a reservoir say about 4KM away at a higher elevation of the upper reaches of the river from the crossing point.
Therefore the length/depth of the feeder canals will depend on the slope of the river^ the depth of Main canal and the rate and level of flooding. Depending on each case/geographical scenerior various feeder canal or channel design can be made to maximise impounding of water.






G. I CLAIM
1. An Invention, termed as RWIS, for impounding water in to a canal (Main canal) to the maximiom, termed as Main Canal from a river or rivulet or a tributory at the time of its flooding or when the water level rises above normal.
2. that RWIS will truly impound water into the Main Canal without issuing it back to the river.
3. that RWIS structure could be so designed that the silt acumulation in the Main Canal is avoided or kept at minimiom. Futher, the RWIS could be designed to minimize
the land acquisition and illegal-tapping of water.
4. that RWIS architechture leaves the Main Canal undisturbed
by the undulating flooding levels of the river. Consequently navigation is possible in the main canal in addition to other functions of the main canal such as transporting water for drinking and irrigation.
5. that RWIS could prove to be the most economic and cost
effective scheme for impounding water in terms of one-time
(cost of construction)and recurring costs(maintenance).

Dated (N.Seshadri Kumar)
Signature of the applicant

Documents:

0465-che-2004 abstract-duplicate.pdf

0465-che-2004 claims-duplicate.pdf

0465-che-2004 descripition(completed)-duplicate.pdf

0465-che-2004 drawings-duplicate-1.pdf

0465-che-2004 drawings-duplicate.pdf

465-che-2004 correspondence po.pdf

465-che-2004 description (complete) granted.pdf

465-che-2004-abstract.pdf

465-che-2004-claims.pdf

465-che-2004-correspondnece-po.pdf

465-che-2004-description(complete).pdf

465-che-2004-drawings.pdf

465-che-2004-form 1.pdf

465-che-2004-form 18.pdf


Patent Number 230308
Indian Patent Application Number 465/CHE/2004
PG Journal Number 13/2009
Publication Date 27-Mar-2009
Grant Date 25-Feb-2009
Date of Filing 18-May-2004
Name of Patentee N. SESHADRI KUMAR
Applicant Address F-1 WHISPERING HEIGHT, 132, ST. MARY'S ROAD, ALWARPET, CHENNAI - 600 018,
Inventors:
# Inventor's Name Inventor's Address
1 N. SESHADRI KUMAR F-1 WHISPERING HEIGHT, 132, ST. MARY'S ROAD, ALWARPET, CHENNAI - 600 018,
PCT International Classification Number E02B3/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA