Method and apparatus for placing dry or liquid materials into the soil subsurface without tillage tools
US5605105A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1994 |
| Grant date | Feb 25, 1997 |
| Priority date | — |
| Expiry date | Oct 17, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S111/903
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In order to place dry granular materials into the subsurface of the soil without mechanical tillage, minute charges of the material are carried by high pressure jets of liquid, such as water, down into the ground from a series of side-by-side nozzles that simultaneously fire the jets toward the ground at regular intervals as the nozzles advance along a path of travel. Instead of passing through the water pump and the sensitive jet-producing nozzles, the granular materials remain separated from the water until the jets have issued from their nozzles and are passing through a ceramic mixing chamber in which a venturi is located. During the short pauses between successive blasts from the nozzles, material is continuously fed into a collecting chamber for each nozzle to form a small charge. As the water blast takes place, the charge is automatically drawn into the venturi and carried out of the machine by the high pressure jet. A metering conveyor continuously delivers material to the collecting chambers at a speed that can be correlated with the speed with which the nozzles are moved along the application path, and the firings of the nozzles are likewise coordinated with the distance …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.