Linear actuator with burn-out-proof coil
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 28, 2000
Grant Date -
N/A
app pub date -
Nov 12, 1998
filing date -
Nov 12, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for manufacturing a linear voice coil actuator, capable of continuously generating a one hundred kilogram force with less than two amperes of current, requires using a coil for generating an electrical field and an unsaturated permanent magnet circuit for generating a magnetic field. In the method of manufacture, a flat surface of the electrical coil is positioned parallel to a flat surface of the magnet to establish a gap therebetween. Before operating the actuator, when no current is running through the coil, a distance of approximately 0.75 mm is established across the gap. Subsequently, during operation of the actuator, when a current of less than approximately two amperes is driven through the coil, the electrical field generated by the coil interacts with the magnetic field of the magnet to generate as much as a 100 kg force on the coil.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully