Magnetic adjustable loading device with eddy current

Patent 5711404 Issued on January 27, 1998. Estimated Expiration Date:

February 5, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Load applying device for an exercise bicycle
Patent #: 5072930
Issued on: 12/17/1991
Inventor: Sun

Adjustable magnetic brake
Patent #: 5096024
Issued on: 03/17/1992
Inventor: Wu

Magnetic brake
Patent #: 5234083
Issued on: 08/10/1993
Inventor: Lee

Braking device for indoor exercise bicycles
Patent #: 5236069
Issued on: 08/17/1993
Inventor: Peng

Eddy current braking system
Patent #: 5254061
Issued on: 10/19/1993
Inventor: Leask

Magnetic adjustable braking device
Patent #: 5437353
Issued on: 08/01/1995
Inventor: Wu

Fly wheel brake device for an exercise bicycle Patent #: 5586624
Issued on: 12/24/1996
Inventor: Ko, et al.

Inventor

Lee, Ying-Che

Application

No. 794888 filed on 02/05/1997

US Classes:

188/164, Magnetic circuit188/158, Electric188/267, Using magnetic flux482/903UTILIZING ELECTROMAGNETIC FORCE RESISTANCE

Examiners

Primary: Butler, Douglas C.

Attorney, Agent or Firm

Rosenberg; Morton J., Klein; David I., Lee; Jun Y.

International Classes

F16F 015/03
B60L 007/28

Abstract

A magnetic adjustable loading device with eddy current comprises a flywheel and a rotor made from metal conductor. A stator comprises with a magnetic plate and permanent magnet. By changing the air gap between the rotor and stator, the magnetic flux density is changed. Characterized in that the axial displacement of the stator is replaced by a stator which performs the radial displacement. The loading or resistance can be adjusted in a stepless manner. The overall dimension of the loading device can be reduced and it can be applied in a more flexible and subtle way.