Nutrient dispersal device
US4158269A · kind A · utility
Inventors
Key dates
| Filing date | Aug 15, 1977 |
| Grant date | Jun 19, 1979 |
| Priority date | — |
| Expiry date | Aug 15, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G29/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A nutrient dispersal device adapted for vertical insertion into the soil is comprised of a cap section, a hollow elongated cylindrical body section rotatably connected to the cap section at an upper end of the body section and a hollow tip section rotatably connected to the lower end of the body section. Liquids entering through a cap section aperture, mix with nutrients stored within the tip section and the resultant mix is dispersed through nutrient dispersal apertures arranged in the sidewalls of the body section. The diameter of the body section is advantageously less than the diameter of the tip section such that the nutrient dispersal apertures arranged in the sidewalls of the body section are not blocked by the surrounding soil during vertical insertion of the nutrient dispersal device into the soil. A flotation device contained with the body section of the nutrient dispersal device rises in conjunction with the liquid level in the body section to seal the cap aperture under conditions of rapid liquid input, thereby, preventing nutrient waste.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.