Rotodynamic pump with spherical motor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4352646
SERIAL NO

06238855

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A pump-motor unit of the type having an impeller connected to an armature and where the armature is separated from a stator by an air gap. The armature comprises a magnetic material having sufficient residual flux density whereby when the torque load on the impeller-armature structure is low, the magnet will act as a permanent magnet to provide synchronous rotation of the armature with respect to magnetic flux generated by the stator and when the torque load on the impeller-armature structure is high, will allow magnetic reversal whereby the armature will rotate asynchronously with respect to the magnetic flux generated by the stator.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
J. CASHEW, JR. TRUST U/A DTD OCTOBER 7, 1993SAN FRANCISCO, CA0

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Laing, Ingeborg 7141 Aldingen bei Stuttgart, Hofener Weg 35-37, DE 7 75
Laing, Nikolaus 7141 Aldingen bei Stuttgart, Hofener Weg 35-37, DE 9 83

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
* 4629116 Power saving thermal carrier circulating pump particularly for heat pump heating systems 5 1986
* 4703748 Destratifier for hot water tanks 1 1986
* 2012/0007,452 ENCAPSULATED STATOR SPHERICAL ROTOR MOTOR PUMP 0 2011
 
Oliver Laing, Karsten Laing, Birger Laing (1)
7446449 Electric motor 2 2007
 
TERUMO CARDIOVASCULAR SYSTEMS CORPORATION (1)
* 4984972 Centrifugal blood pump 85 1989
 
GRUNDFOS HOLDING A/S (3)
9800098 Pump unit 0 2011
9570945 Electric motor 0 2011
9362784 Pump unit 0 2011
 
Oliver Laing (2)
* 2005/0200,232 Electric motor 2 2005
* 2007/0115,634 Device for the local cooling or heating of an object 10 2007
 
LAING, OLIVER, LAING, KARSTEN, LAING, BIRGER (2)
* 6897596 Electric motor 10 2003
* 2004/0119,371 Electric motor 4 2003
 
COBE CARDIOVASCULAR, INC. (1)
* 5919125 Centrifuge bowl for autologous blood salvage 33 1997
 
GRUNDFOS MANAGEMENT A/S (1)
9490668 Pump unit 0 2011
 
Flowserve Management Company (1)
* 5158440 Integrated centrifugal pump and motor 85 1991
 
ROBERT BOSCH GMBH (1)
* 4614887 Dynamo electric machine construction, particularly for combination with a pump unit 5 1984
 
ROCKWELL COLLINS, INC. (4)
6320284 Motor assembly allowing output in multiple degrees of freedom 20 1999
6664666 Motor assembly allowing output in multiple degrees of freedom 21 2001
6909205 Motor assembly allowing output in multiple degrees of freedom 22 2003
* 2004/0124,717 Motor assembly allowing output in multiple degrees of freedom 2 2003
 
J. CASHEW, JR. TRUST U/A DTD OCTOBER 7, 1993 (4)
* 4462752 In-line centrifugal pump 3 1982
* 4580335 Spherical rotor for electrical motors 5 1984
* 4728268 Rotodynamic pump 7 1986
* 4758758 Rotor for electric machines having a spherical gap for the magnetic flux 5 1986
 
LAING, OLIVER (2)
* 7484941 Electric motor with circulator pump 1 2002
* 2003/0222,527 Electric motor with circulator pump 0 2002
 
GEORGIA TECH RESEARCH CORPORATION (1)
* 4739241 Spherical motor particularly adapted for robotics 45 1986
 
LAING, KARSTEN (1)
* 7648347 Device for the local cooling or heating of an object 0 2007
 
WARNER BROS. ENTERTAINMENT INC. (1)
* 5286024 System for sensing the position of a joystick 70 1991
* Cited By Examiner