Fusible element with high surge capability
AssigneeS&C Electric Company
InventorGlenn R. Borchardt
Life of this patent
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Abstract
A fusible element is provided that includes cooperating interfitting parts surrounded by fusible material. The cooperating interfitting parts are arranged so as to place compressive force on the fusible material in response to attempted separation of the interfitting parts. Further, the arrangement also reduces the forces on the fusible material. In response to a predetermined time-current condition, the fusible material softens sufficiently to permit the release and separation of the interfitting parts.
Claims10
A fusible element comprising two separable conductors and means for releasably securing said two separable conductors including interfitting parts surrounded by fusible material such that forces separating the interfitting parts result in compression forces on the fusible material, said interfitting parts comprising said two separable conductors including respective interfering portions of said separable conductors such that relative movement is required between said interfering portions before they can be separated.
A fusible element comprising two separable conductors and first means for releasably securing said two separable conductors including interfitting parts surrounded by fusible material such that forces separating the interfitting parts result in compression forces on the fusible material, said interfitting parts of said first means comprising a pivotally mounted latch lever carried by a first of said two separable conductors and second means carried by the second of said two separable conductors for cooperating with said latch lever such that said latch lever in a first position retain said second means, and said latch lever upon pivoting to a second position releases said second means.
A fusible element comprising two separable conductors, first means carried by said two separable conductors for releasably securing said two conductors, and fusible material surrounding said first means, said first means comprising a second member carried by a first of said two separable conductors and a third member carried by the second of said two separable conductors, said second and third members comprising respective cooperating portions that are arranged in an interfering relationship such that relative movement between said second and third members permits separation of said two separable conductors.
Dependencies are inferred from the claim text.