Brian Matthew Martin
Anesthesiologist Assistant at Quebec St, Denver, CO

4846067, Jul 11, 1989

Mar 14, 1988

7/167718

Brian D. Martin - Golden CO

F42B 310, F42C 700, F42C 1908

1022756

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.

5313888, May 24, 1994

May 5, 1992

7/878617

Brian D. Martin - Golden CO

F42B 400, F42B 426, C06C 900

102334

The invention includes a pull-wire igniter for a pyrotechnic distress or signalling device which includes a hollow, elongated, tubular body which has a pyrotechnic composition mixture packed into one portion of the body and a small diameter, central passageway is formed through the pyrotechnic composition. A thin elongated plastic center tube is inserted through the central passageway. The outer end of the center tube is recessed at the outer end of the composition. An igniter cup is positioned firmly within the end of the center tube. A pull-wire device extends through the center tube and is exposed at the opposite end of the body so that the user can grasp the pull-wire. The igniter cup is partially filled with an igniter mixture and the end of the pull-wire extends through the igniter cup and is coated with a scratch material. A short section of shrink tubing is positioned over the coated end of the wire to isolate the scratch material. The exposed end of the pyrotechnic composition is covered with an easily ignitable primer material and the outer end of the tubular body is covered with a sealant, coating or membrane to seal the body of the device against moisture or other contaminants.