Pneumatic plug for a seed meter
US7017502B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2003 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Nov 30, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/042
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pneumatic plug is used to seal off a pneumatic pressure source from a pneumatic pressure seed meter. The pneumatic plug comprises an annular rim defining an annular cavity, a insert portion and a sealing wall. The plug is an integral rubber body. The insert portion is inserted into a pneumatic hose supplying pneumatic pressure to the seed meter. The annular rim defines an annular cavity into which the pneumatic inlet of the seed meter is received. The annular cavity is provided with two inwardly extending sealing ridges that engage the outer sidewalls of the pneumatic inlet. The sealing wall provides a pneumatic seal for the pneumatic hose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.