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US 3,947,797 AGranted
Circuit interrupting means
AssigneeThe Machlett Laboratories, Inc.
InventorJacob A. Randmer
Life of this patent
Estimating the term…
Abstract
A circuit interrupting device comprising a vacuum fuse having an evacuated envelope wherein one or more fusible elements electrically connect spaced open ends of aligned tubular electrodes which have respective sealable ends external of the envelope and provide means for facilitating assembly and processing of the fuse.
Claims8
A circuit interrupting device comprising:
- an evacuated envelope;
- tubular conductive means including a pair of tubular electrodes having spaced inner end portions open to one another within the envelope and sealable outer end portions external of the envelope for providing a passageway through the envelope;
- and
- conductive fusible means disposed within the envelope for electrically connecting the spaced inner end portions of the tubular electrodes to one another.
1 more element
A circuit interrupting device comprising:
- an evacuated tubular envelope;
- a pair of axially aligned tubular electrodes having respective open ends within the envelope disposed in spaced opposing relationship with one another and respective sealable open ends external of the envelope;
- and
- current responsive fusible means within the envelope electrically connected to the spaced electrode ends therein.
1 more element
Dependencies are inferred from the claim text.