Contactless electric control-handle

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4642595
SERIAL NO

06726690

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A contactless electric control handle having a field coil for forming an electro-magnetic field, inductive pick-up coils angularly spaced apart around the axis of the field. The rod of the control handle constitutes the core of the field coil. The field coil and the pick-up coils have the shape of annular, concentric conductors, whereas ferrite is applied to the rod in order to employ high frequencies up to 1 MHz.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
Inductive Control Systems B.V.EDE0

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ruumpol, Geurt J AB Wilp, NL 3 26

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
* 4494109 Noncontacting keyboard employing a transformer element 12 1981
* 4425511 Planar coil apparatus employing a stationary and a movable board 66 1981
* 4462015 Electromagnetic pick-off control handle 5 1982
 
INDUCTIVE CONTROL SYSTEMS B.V., KEESOMSTRAAT 4, 6717 AB EDE, THE NETHERLANDS, A CORP. OF THE NETHERLANDS (1)
* 4434412 Contactless, electric control-handle 11 1981
 
DELPHI TECHNOLOGIES, INC. (1)
* 4453124 Linear inductive transducers 5 1982
 
MCDONNELL DOUGLAS CORPORATION (1)
* 4421997 Multiple axis actuator 28 1981
 
Ceramic Magnetics, Inc. (1)
* 4544803 Positional transducer 3 1984
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Huka Developments B.V. (1)
* 4879556 Joystick control unit using multiple substrates 171 1987
 
LOGITECH CORPORATION (1)
6480183 Digital joystick using capacitive sensor 10 1999
 
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
 
LOGITECH EUROPE S.A. (2)
* 5911627 Electromagnetic joystick using varying overlap of coils and conductive elements 8 1997
6248018 Electromagnetic pointing device using varying overlap of coils and conductive elements 5 1998
 
MECOS TRAXLER AG (2)
7355501 Evaluation device and vibration damper for a racket 0 2003
* 2006/0152,320 Evaluation device and vibration damper for a racket 3 2003
 
CATERPILLAR INC. (1)
* 5532529 Contactless inductance joystick switch 5 1994
 
ES BETA, INC. (1)
* 4825157 Hall-effect controller 77 1988
 
ZF FRIEDRICHSHAFEN AG (6)
7633026 Inductive switch 2 2003
7701201 Inductive switch 3 2004
* 2008/0142,346 Inductive Switch 6 2004
* 2005/0258,687 Inductive switch 5 2005
7719263 Inductive position measuring device or goniometer 2 2007
* 2008/0157,756 Inductive position measuring device or goniometer 2 2007
* Cited By Examiner