Multi-edged rodent bait
US5044113A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1989 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Dec 20, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01M25/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A multi-edged rodent bait unit is disclosed having a quantity of rodent meal and rodenticide formed into an extended article having planar front and rear faces. The article has a substantially constant cross section along its length and has four sides perpendicular to the front and rear faces. At least one side has portions defining a V-shaped groove. The walls of the groove meet the faces of the side at angle of less than 150 degrees to form linear edges which are easily gnawed by a rodent. A preferred form of the bait unit has a single groove on each side of the bait unit. A second preferred form has two grooves on each side, and a third preferred form has alternating grooves and ribs. The bait unit of this invention is formed by mixing a rodenticide with rotent meal at room temperature and adding liquid paraffin at approximately 145 degrees Fahrenheit to the mixture and blending the paraffin into the mixture to form a die homogeneous mass. The mass is then extruded through a die at high pressures wherein the die has portions to form V-shaped grooves in the sides of the extruded mass. The extruded mass is then cut to desired lengths. The bait unit according to this invention has …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.