US Patent No: 5,757,662

Number of patents in Portfolio can not be more than 2000

Eletromagnetically actuated rotating machine unbalance compensator

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Importance

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Abstract

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An electromagnetically actuate machine balancer including a plurality of peripherally placed magnetic circuits and a power driver which selectively interrupts the magnetic flux through the circuits, thereby moving unbalanced rotors in a desired manner to compensate for machine unbalance.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
LORD CORPORATIONERIE, PA638

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dyer, Stephen William Ann Arbor, MI 12 113
Hackett, Brian Kent Saline, MI 4 51
Kerlin, Jack Springville, UT 6 48

Cited Art Landscape

Patent Info (Count) # Cites Year
 
BALADYNE CORPORATION (3)
5,231,265 Method and apparatus for the transfer of electrical power to a balancer 9 1990
5,240,358 Method and apparatus for tool balancing 18 1990
5,453,598 Apparatus for the transfer of electrical power to a balancer 9 1993
 
BALANCE DYNAMICS CORPORATION (3)
4,432,253 Unbalance compensator 22 1982
4,684,944 Remote control system for rotary device 10 1984
4,977,510 Computerized control system and method for balancers 13 1989
 
Balance Engineering Corporation (1)
5,161,414 Magnetically shielded apparatus for sensing vibration 9 1991
 
DANA CORPORATION (1)
5,168,187 Axial pole stepping motor 28 1991
 
DIMETRICS, INC. (1)
4,340,948 Single-coil balance wheel for driving a mechanical movement 5 1980
 
Dynamics Research Corporation (1)
5,412,583 Computer implemented balancer 18 1993
 
Gosudarstvenny Nauchnoissledovatelsky Institmashinovedenia (1)
4,189,507 Method for balancing rotors 1 1977
 
MOTOR/ROTOR, INC. (1)
5,505,684 Centrifuge construction having central stator 28 1994
 
Nagase Iron Works Co., Ltd. (1)
4,817,003 Apparatus for detecting and indicating the balance of a rotary body in a machine tool 17 1987
 
NISSAN MOTOR CO., LTD. (1)
4,550,428 Driver unit for automotive audio speaker 15 1983
 
The Boeing Company (1)
5,172,325 Method for balancing rotating machinery 13 1990
 
WHIRLPOOL CORPORATION (1)
4,626,147 Method of and apparatus for balancing a rotary body 17 1984
 
Other [Check patent profile for assignment information] (2)
4,983,915 Device for determining the rotary angle position of rotary drives of electrical machines by evaluation of electrical voltages by sensors responding to rotary movements 22 1988
5,144,862 Rotating shaft mounted actuating mechanism 5 1990

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
LORD CORPORATION (15)
6,236,934 Electromagnetically actuated rotating machine unbalance compensator 20 1997
6,364,581 Balancer 4 2001
7,267,029 Balancing device for a rotating member and associated methods 3 2002
7,717,013 Rotating machine active balancer and method of dynamically balancing a rotating machine shaft with torsional vibrations 8 2005
7,448,854 Helicopter vibration control system and rotary force generator for canceling vibrations 16 2005
7,722,322 Computer system and program product for controlling vibrations 11 2006
8,360,728 Aircraft with transient-discriminating propeller balancing system 0 2007
7,942,633 Helicopter vibration control system and rotary force generator for canceling vibrations 2 2008
8,090,482 Distributed active vibration control systems and rotary wing aircraft with suppressed vibrations 1 2008
8,162,606 Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations 1 2009
8,435,002 Helicopter vibration control system and rotating assembly rotary forces generators for canceling vibrations 0 2009
8,480,364 Computer system and program product for controlling vibrations 1 2010
8,267,652 Helicopter hub mounted vibration control and circular force generation systems for canceling vibrations 1 2010
8,313,296 Helicopter vibration control system and rotary force generator for canceling vibrations 0 2011
8,639,399 Distributed active vibration control systems and rotary wing aircraft with suppressed vibrations 0 2011
 
SIKORSKY AIRCRAFT CORPORATION (2)
8,042,659 Active force generation/isolation system employing Magneto Rheological Fluid (MRF) 0 2003
8,403,643 Dual frequency hub mounted vibration suppressor system 0 2009
 
ANCA PTY LTD (1)
7,467,019 Computation of imbalance in rotatably mounted object in a motion control system 0 2005
 
CONAGRA FOODS RDM, INC. (1)
7,569,241 Magnetic alignment system for scraped-surface heat exchanger and method 0 2003
 
FORD MOTOR COMPANY (1)
6,859,674 Method for designing and acquiring a machining system based upon performance characteristics 3 2000
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
6,242,826 Spindle motor and disc driving apparatus comprising the same 16 1999
 
NATIONAL CHUNG CHENG UNIVERSITY (1)
8,281,686 Eddy-current actuated balancer for rotating machinery 0 2010
 
ROLLS-ROYCE PLC (1)
7,882,765 Balancing assembly 0 2005
 
SCHENCK ROTEC CORPORATION (1)
6,595,052 Self-calibrating machines for balancing work pieces and methods of machine calibration 7 2002
 
SCHMITT MEASUREMENT SYSTEMS, INC. (1)
6,606,922 Rotational imbalance compensator 18 2001
 
Other [Check patent profile for assignment information] (2)
8,505,411 Active balancing system powered by light 0 2010
8,813,602 Active balancing system powered by light 0 2013