Circumferential seal for a vacuum pressure chamber on a metering device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5401035
SERIAL NO

08097090

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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.

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First Claim

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Patent Owner(s)

  • Assignment data not available. Check PTO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schoenmaekers, Johannes G Raar 8A, NL-6231 RR Meerseen, NL 1 13

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Westinghouse Electric Corp. (1)
* 5071318 Reactor coolant pump having improved dynamic secondary seal assembly 17 1990
 
KINZE MANUFACTURING, INC. (1)
* 5058766 Seed meter for row crop planter unit 46 1990
 
AEROQUIP CORPORATION (1)
* 4614348 Anti-blowout seal 17 1985
 
DEERE & COMPANY (1)
* 4664290 Method and apparatus for precise positioning of a seed disk in a seed meter 32 1985
 
Kloeckner-Werke AG (1)
* 4346903 High-pressure seal in piston 10 1981
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 6283051 Small seed dispenser 2 1998
 
VÄDERSTAD HOLDING AB (2)
9151388 Sealing gasket and seed housing for a seeder and seeder comprising such a seed housing 0 2012
9693499 Sealing gasket and seed housing for a seeder and seeder comprising such a seed housing 0 2015
 
HOCKEMEYER, DAVID JASON (1)
* 6634522 Universal seed metering disc 5 2001
 
SCAN COIN INDUSTRIES AB (ALSO KNOWN AS SCAN COIN AB) (1)
* 2005/0287,941 Hopper coin and disc feeders 1 2004
 
BLUE LEAF I.P., INC. (10)
* 5842428 Vacuum seed metering apparatus having housing openings 16 1996
* 6109193 Seed planter apparatus and method 38 1998
* 6044779 Multiple drop seed disc 11 1998
6401638 Seed planter apparatus and method 22 2000
6374759 Seed planter apparatus and method 4 2000
6325005 Seed planter apparatus and method 8 2000
6564730 Seed planter apparatus and method 14 2001
6776108 Seed planter apparatus and method 11 2003
6739272 Seed planter apparatus and method 4 2003
* 2003/0154,892 Seed planter apparatus and method 1 2003
* Cited By Examiner