Magnetic damper

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United States of America Patent

PATENT NO 9457635
APP PUB NO 20140015180A1
SERIAL NO

13825257

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Apparatus, systems, and methods for damping movement of a first mass relative to a second mass by magnetically generating induced current are provided. A magnet is coupled to one mass and a nonferrous metallic member is coupled to another mass that moves relative to the first mass. First and second springs are coupled to opposing ends of the magnet, the magnet being positioned between the springs. A guide member channels the magnet as it moves relative to the nonferrous member, the magnet being slidable along the guide member. The magnet is in close proximity to the nonferrous metallic member as the magnet moves. Upon causing movement of the magnet by either mass, the magnet generates an electrical current in the nonferrous metallic member that induces a counter magnetic field that opposes the magnetic field generated by the current to damp movement of the magnet as it moves.

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Patent Owner(s)

Patent OwnerAddress
RENTON COIL SPRING COMPANY425 SOUTH 7TH STREET RENTON WA 98057

International Classification(s)

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  • 2011 Application Filing Year
  • B60G Class
  • 305 Applications Filed
  • 229 Patents Issued To-Date
  • 75.09 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20112012201320142015201620172018201920200255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pepka, Charles F Renton, US 15 99

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Patent Citation Ranking

  • 4 Citation Count
  • B60G Class
  • 13.55 % this patent is cited more than
  • 9 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges2915325321101 - 1011 - 2021 - 3031 - 4041 - 5051 - 600102030405060708090100110120130140150160170

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