Seed tube guard
US7263937B2 · kind B2 · utility
11Cited by
21References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2004 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Feb 14, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C5/064
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mutually-engageable or interlocking connection between a seed tube guard and a frame member mounted to a seed planting machine. The mutually-engageable connection includes a yoke having a front journal and a rear journal with a gap, the yoke, carried on the frame member, and a pin connected to a neck, carried by the guard. The pin is sized to fit between and into the front and rear journals, wherein the neck has a thickness less than a width of the gap in order to slide though the gap during installation, and a length to fit between and through the front and rear journals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.