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US 7,443,160 B2Granted
Position sensor
OwnerRonald J. Wolfinventor
Life of this patent
Estimating the term…
Abstract
A position sensor including a rotatable shaft, a first threaded member, a second threaded member, at least one magnet, and at least one magnetic flux detection device. The first threaded member is connected to the rotatable shaft. The second threaded member is threadably engaged with the first threaded member. The at least one magnet is connected to the second threaded member. The at least one magnetic flux detection device is positioned to detect a magnetic field from the at least one magnet.
Claims24
A position sensor, comprising:
- a rotatable shaft having a longitudinal axis;
- a first threaded member connected to said rotatable shaft;
- a second threaded member threadably engaged with said first threaded member;
- at least one magnet connected to said second threaded member;
- at least one magnetic flux detection device positioned to detect a magnetic field from said
- at least one magnet;
- and
- a ferrous ring, said at least one magnet being positioned radially outwardly from said longitudinal axis, said ferrous ring being positioned radially outwardly from said at least one magnet and said longitudinal axis, said at least one magnetic flux detection device being positioned radially outwardly from said ferrous ring.
5 more elements
A position sensor, comprising:
- a first threaded member having a longitudinal axis;
- a second threaded member threadably engaged with said first threaded member;
- at least one magnet connected to said second threaded member;
- at least one magnetic flux detection device positioned to detect a magnetic field from said
- at least one magnet;
- and
- a ferrous ring, said at least one magnet being positioned radially outwardly from said longitudinal axis, said ferrous ring being positioned radially outwardly from said at least one magnet and said longitudinal axis, said at least one magnetic flux detection device being positioned radially outwardly from said ferrous ring.
4 more elements
Dependencies are inferred from the claim text.