US Patent No: 5,401,035
Number of patents in Portfolio can not be more than 2000
Circumferential seal for a vacuum pressure chamber on a metering device
Stats
-
Mar 28, 1995
Issued date -
Jul 23, 1993
filing date -
08/097,090
serial no -
In Force
status
Importance
Loading Importance Indicators...
Abstract
A circumferential seal for the clearance space or gap between a vacuum pressure chamber formed by a trough-shaped casing and a revolving transporting disk of a metering device for sealing the vacuum pressure chamber, and preferably, it is used for a single-grain sowing machine.
Loading the Abstract Image...
First Claim
Related Publications
Loading Related Publications...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 4,614,348 Anti-blowout seal | 15 | 1985 | |
|
|
|||
| 4,664,290 Method and apparatus for precise positioning of a seed disk in a seed meter | 27 | 1985 | |
|
|
|||
| 5,058,766 Seed meter for row crop planter unit | 42 | 1990 | |
|
|
|||
| 4,346,903 High-pressure seal in piston | 10 | 1981 | |
|
|
|||
| 5,071,318 Reactor coolant pump having improved dynamic secondary seal assembly | 14 | 1990 | |