Hopper extension
US11849664B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2020 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Jun 18, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C15/006
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A hopper extension includes forward and rearward walls connected by first and second side walls to form a container area having an upper opening and a lower opening. The lower opening includes a mating interface that slidably interfaces with an existing hopper. The hopper extension further includes a ramped wall extending from each of the forward, rearward, first side and second side walls to form a seed opening positioned intermediate the upper and lower openings. An underside of at least one of the ramped walls defining an air cavity that is placed over an air grate of an existing hopper when the hopper extension is secured thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.