Importance

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Abstract

A disposable weather-proof safety fuse igniter is provided which includes a hollow cylindrical housing having an internally spaced sleeve provided for mounting and positioning a pull-wire type friction igniter cup. The end of the pull-wire is attached to a vent plug positioned at one end of the housing which, in turn, is attached to a finger-grip device for extracting the vent plug and pull-wire for ignition. A threaded cap is provided to cover and seal the vent plug end of the housing. The opposite end of the housing includes a compression type sealing retainer which has an internal bore for insertion of the safety fuse. A double O-ring seal can be positioned within the housing with the retainer arranged so that rotation of the cap causes the O-ring seal to be compressed against the inserted fuse. Internally arranged ferrules are provided within the internal sleeve for properly positioning the end of the inserted fuse, retaining the fuse in proper position for use, and channeling the flame from the primer upon ignition to light the end of the safety fuse. A metering aperture in the sleeve and a passageway through the housing allows the exhaust gases to be accurately vented. A shipping plug is provided for insertion into the end of the sealing retainer to render the device weather-proof during shipping and storage.

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First Claim