Patent ID: 7250843
Filing Date: 2007-07-31
Classification: H01H

Abstract:
1. A fuse component, comprising: a cylindrical tube having an inner wall defining a gas filled cavity, an outer wall, and two opposite ends each having an end surface; a fusible conductor extending in said cavity between said two ends; two end caps consisting of an electrically conductive material and each comprising a cap base, said end caps being applied to the ends of the tube such that a respective electrical contact with the fusible conductor is provided, wherein a sealing body of a plastic material is inserted in a gap between the cap base of at least one of the two end caps and the corresponding end surface of the tube and in a portion of the cavity in the tube adjacent to the cap base, said sealing body being compressed between the end surface and the cap base; and wherein a resealable gap is formed in said plastic material between said cavity and an environment surrounding said tube in response to an increase in pressure within said cavity, said gap resealing when said pressure within said cavity becomes at least substantially equal to a pressure of said environment.