利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

91 条记录 (耗时 0.015 秒)

    SYSTEM FOR PRODUCING HEAT IN ALTERNATING MAGNETIC FIELDS
    67.
    发明授权
    SYSTEM FOR PRODUCING HEAT IN ALTERNATING MAGNETIC FIELDS 失效
    SYSTEM FOR磁场中的变化产生热

    公开(公告)号：EP0511283B1

    公开(公告)日：1996-03-27

    申请号：EP91903093.2

    申请日：1991-01-15

    申请人： METCAL INC.

    发明人： McGAFFIGAN, Thomas, H.

    IPC分类号： H05B06/10

    CPC分类号： B29C65/3612 ,  B29C65/366 ,  B29C65/3668 ,  B29C65/3676 ,  B29C65/3684 ,  B29C66/5261 ,  B29C66/7392 ,  B29C66/91221 ,  B29C66/91311 ,  B29C66/91411 ,  B29C66/91431 ,  B29C66/91645 ,  B29C66/91651 ,  B29C66/91655 ,  B29C66/919 ,  B29C66/944

    摘要： A system for providing heating in an alternating magnetic field comprises a combination of particles (31, 32) wherein the first particles (31) are lossy heat producing particles, which have a preselected Curie temperature to provide self-regulating heating in the magnetic field, and the second particles (32) are non lossy particles which have high permeability which are not heat producing but which maintain the coupling of the magnetic circuit and the desired magnetic field focus and intensity through the area in which the first lossy particles (31) are positioned. When the first lossy particles (31) approach their Curie temperature and have declining permeability and would otherwise lose the desired coupling with the magnetic circuit, the second nonlossy particles (32) maintain the coupling of the magnetic circuit and the intensity of the magnetic field through the first lossy particles (31) to provide the desired field strength throughout the heating period.