Patent · US Expired

Moisture reservoir for fertile soils for plants

US4257191A · kind A · utility

9Cited by
11References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 19, 1979
Grant dateMar 24, 1981
Priority date
Expiry dateJun 19, 1999

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA01G24/44
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A granular or plate-like calcium aluminum silicate layer stores water beneath fertile soil. The silicate material may be coated with fertilizer or chemicals and may be shipped and installed within a wrapping, at least one surface of which is moisture pervious. A fleece-like material may form the pervious surface. A silicate container with a perforated cover and sidewalls fits within a planter. A filler pipe extends through the soil into the container. The silicate material may be mixed with the fertile soil.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.