×

Electrical devices

  • US 5,852,397 A
  • Filed: 07/25/1997
  • Issued: 12/22/1998
  • Est. Priority Date: 07/09/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. A circuit protection device which comprises:

  • (1) a la first laminar electrode;

    (2) a second laminar electrode;

    (3) a laminar PTC resistive element which (i) exhibits PTC behavior, (ii) comprises a laminar element composed of a PTC conductive polymer, (iii) has a first face to which the first electrode is secured and an opposite second face to which the second electrode is secured, and (iv) defines an aperture which runs between the first and second faces;

    (4) a third laminar conductive member which (i) is secured to the second face of the PTC resistive element in the area of the aperture, and (ii) is spaced apart from the second electrode; and

    (5) a transverse conductive member which(a) lies within the aperture defined by the PTC resistive element,(b) runs between the first and second faces of the PTC element,(c) is secured to the PTC element, and(d) is physically and electrically connected to the first laminar electrode and to the third laminar conductive member, but is not connected to the second laminar electrode.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×