Flame-guard for electrical installations
AssigneeTelefonaktiebolaget L M Ericsson
InventorWilly P. A. Dick
Life of this patent
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Abstract
A flame-guard device for electrical installations which consists of a cable-shaped string of capsules. The capsules contain a flame-extinguishing substance, which is released in case the capsules are heated.
Claims3
A flame protective device for electrical cable installations comprising a plurality of capsules secured together one after another to form a string, each of said capsules containing a substance having flame-extinguishing properties, said capsules being constructed to burst or open up when heated, thereby releasing said flame-extinguishing substance, the individual capsules being arranged in a line and a hose surrounding said capsules and maintaining the capsules in spaced positions in said line.
A flame protective device for electrical cable installations comprising a plurality of capsules secured together one after another to form a string, each of said capsules containing a substance having flame-extinguishing properties, said capsules being constructed to burst or open up when heated, thereby releasing said flame-extinguishing substance, said string of capsules including contracted portions between adjacent capsules which maintain the capsules in spaced positions in said string, said contracted portions being provided with apertures therein, said contracted portions including connecting links engaged in said apertures.
Dependencies are inferred from the claim text.