Proportional electromagnetic valve having amplifier therein

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4928730
SERIAL NO

07221416

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A proportional electromagnetic valve includes a valve main body having a valve member, a solenoid to drive the valve member, and an amplifier unit to control the solenoid. The solenoid is attached to one or both side portions of the valve main body. The amplifier unit has a size which is almost equal to a size on the unit attaching surface side of the valve main body and solenoids. The casing of the amplifier unit has an enclosing space large enough such that single printed board having all of drive amplifiers attached there to placed in the casing of the amplifier unit.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TOKIMEC INC.TOKYO10

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ando, Tsuyoshi Sano, JP 12 53
Hatakenaka, Kosuke Sano, JP 1 9
Hirono, Nakayasu Yokohama, JP 2 10
Kihara, Kazuyuki Sano, JP 3 22
Mito, Akio Sano, JP 7 66
Nakao, Hirotoshi Sano, JP 4 14
Ogawa, Hiroshi Sano, JP 423 4663

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MANNESMANN REXROTH GMBH (1)
* 4458289 Solenoid drive for valves 3 1982
 
Double A Products Company (1)
* 4308891 Terminal blocks and indicator for solenoid valves 26 1980
 
Yuken Kogyo Kabushiki Kaisha (1)
* 4796661 Proportional electro-hydraulic pressure control valve 31 1986
 
DOUBL A PRODUCTS CO., A CORP. OF MI. (1)
* 4418720 Solenoid operated directional valves having modular construction 12 1981
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Numatics, Incorporated (1)
* 5522431 Solenoid valve control system 13 1995
 
SAUER-DANFOSS INC. (2)
7011113 Hydraulic cartridge valve solenoid coil for direct mount to a printed circuit board 3 2004
* 2005/0194,052 Hydraulic cartridge valve solenoid coil for direct mount to a printed circuit board 2 2004
 
ROBERT BOSCH GMBH (2)
* 5137455 Electrical connector, particularly for braking control unit 28 1990
* 5318269 Electronic control system for magnetic valves operated individually or in cascade 0 1992
 
FESTO AG & CO. KG (2)
* 7040346 Fluid power valve and integrated visual indicator 2 2003
* 2005/0022,877 Fluid power valve and integrated visual indicator 0 2003
 
SMC CORPORATION (4)
* 6520202 Manifold valve having position detecting function 17 2001
* 6505642 Manifold valve having position detecting function 10 2001
* 7048002 Board-mounted manifold valve 6 2003
* 2004/0089,352 Board-mounted manifold valve 2 2003
 
MANITOWOC FOODSERVICE COMPANIES, INC. (1)
* 2004/0226,253 Door molding for a walk-in food chilling compartment 1 2003
 
FLUID AUTOMATION SYSTEMS S.A. (1)
* 5481237 Solenoid valve with electrical connection elements and integrated safety devices 11 1994
* Cited By Examiner