US 4,901,196 AGranted

Portable barbeque lighter

OwnerJohn D. Grzybowskiinventor

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Abstract

A battery operated barbeque igniter has an igniter implement with an axially extending heater element and a sheath to keep the heater element from accidentally burning anything or anyone as it cools after use. The heater element is positioned inside a metal tube which is closed at one end. The heater element includes a spiral tungsten filament supported between two coaxial quartz tubes. The outer quartz tube is closed at one end. A central steel rod extends the length of the metal tube and serves both to position the tungsten filament inside the metal tube and as an electric conductor to one end of the filament. The rod is brazed to the inner quartz tube and the filament at one end of the filament. The outer quartz tube is brazed to the inner quartz tube and the other end of the filament. The sheath receives the heater element and is slotted to permit cooling of the heater element without inadvertent contact with it.

Claims6

Dependent claims

A portable electric fire igniter comprising a battery and an igniter implement having

a manually engageable handle, a metal tube extending from the handle and a heater element disposed within the tube, the tube having a free end portion remote from the handle,
the heater element including
inner and outer quartz tubes disposed within the free end portion of the metal tube and generally concentric therewith, the outer quartz tube being closely adjacent the inside of the metal tube and the two quartz tubes defining between themselves an annular, axially extending space, wherein one end of the outer quartz tube, remote from the handle, is closed and a steel plug is positioned between the inner and outer quartz tubes at the other end of the outer tube, one end portion of a tungsten filament being electrically connected to the steel plug,
the tungsten filament disposed in the space between the two quartz tubes and said steel plug and the other end portion of the filament electrically connected with the battery, the filament being spirally wound around the inner quartz tube and supported against excessive transverse movement by the inner and outer quartz tubes.

1 more element

Dependencies are inferred from the claim text.