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US 4,382,713 AGranted
Pavement water conservation method
OwnerSakae Kawaharainventor
Life of this patent
Estimating the term…
Abstract
Apparatus is provided to reduce wastage of water draining from pavements.
Claims6
In combination with pavement and a cylindrical hole through the pavement and extending into the ground therebelow, the combination comprising
- (a) a water receiver located in said hole in the pavement and ground, the receiver being hollow,
- (b) said receiver having a top exposed to pass water into the receiver hollow interior, and
- (c) said receiver having a water distributor in the hole below the pavement for sidewardly and downwardly distributing water, into the underground earth,
- (d) said distributor having a downwardly tapering conical lower portion which contains through perforations spaced from the wall of the hole to pass water into the hole,
- (e) said hole containing pebbles about said conical portion and perforations, and therebelow, the hole and pebbles extending downwardly to substantial depth below the lowermost extent of said distributor,
- (f) the receiver having an associated upwardly domed closure across its upper end, the closure being perforated, the receiver filled with rocks or rock like pieces, below said closure,
- (g) and the receiver having a cylindrical shell body having a diameter between 5 mm and 300 mm, between said closure and said conical lower portion.
4 more elements
Dependencies are inferred from the claim text.