Self-extinguishing torch
AssigneeLamplight Farms Incorporated
InventorsRobert Woodruff, Ron White
Life of this patent
Estimating the term…
Abstract
A self-extinguishing torch top has a wick holder with an upper end and a lower end, affixed to a fuel canister top. An extinguisher surrounds the wick holder and has at least a retracted position wherein a wick protruding from the wick holder is sufficiently exposed to be allowed to burn, and at least an extended position wherein the extinguisher extends beyond the wick so far as to extinguish any flame on the wick. A biasing member urges the sliding tube toward the extended position, and an arrest mechanism retains the sliding tube in the retracted position until an impact occurs, upon which the arrest mechanism releases the sliding tube to allow its extension to the extended position.
Claims14
A self-extinguishing torch top comprising:
- a wick holder having an upper end and a lower end, and affixed to a fuel canister top;
- an extinguisher surrounding the wick holder and having at least a retracted position wherein a wick protruding from the wick holder is sufficiently exposed to be allowed to bum and at least an extended position wherein the extinguisher extends beyond the wick so far as to extinguish any flame on the wick;
- a biasing member that urges the extinguisher toward the extended position;
- and
- an arrest mechanism that retains the extinguisher in the retracted position until an impact occurs, upon which the arrest mechanism releases the sliding tube to allow its extension to the extended position;
- wherein the arrest mechanism comprises at least one spring loaded detent extending inward toward the extinguisher and at least one recess defined in the extinguisher for receiving the detent when the extinguisher is in the retracted position;
- and
- wherein the arrest mechanism comprises are retainer attached to the fuel canister top and retaining a plurality of detents spaced radially about the extinguisher.
A self-extinguishing torch top comprising:
- a stationary housing suspended from a fuel canister top;
- a wick tube affixed to the stationary housing and providing passage for a wick from the fuel canister top through the stationary housing;
- an extinguisher that is slidable within the stationary housing and around the wick tube, the extinguisher having a retracted position that exposes the wick tube sufficiently to allow combustion of fuel from a wick therein and having an extended position where the extinguisher extends beyond the wick tube sufficiently to extinguish combustion of fuel from a wick in the wick tube;
- a biasing member inside the stationary housing that urges the extinguisher toward the extended position;
- and
- an arrest mechanism that retains the extinguisher in the retracted position and releases the extinguisher upon impact;
- wherein the arrest mechanism comprises a retainer having a plurality of radially spaced apart spring loaded detents in contact with the extinguisher when the extinguisher is in the retracted position;
- and
- wherein the retainer is suspended by springs over the fuel canister top.
A self-extinguishing torch top comprising:
- a fuel canister top having a threaded attachment for selective fixation to a fuel canister;
- a stationary housing suspended within the threaded attachment to be at least partially within the fuel canister when the canister top is attached to the fuel canister;
- a wick tube passing through the stationary housing providing passage for a wick from a position superior to the fuel canister top to a position inferior to the stationary housing inside the fuel canister;
- a spring biased extinguisher tube that is retained at least partially within the stationary housing by an arrest mechanism until release and, upon release, extends from the stationary housing upwardly surrounding and extending beyond the wick tube such that any combustion occurring on the wick in the tube is extinguished;
- wherein the arrest mechanism comprises a retainer that is spring mounted above the fuel canister top and retains a plurality of spring loaded detents directed toward the extinguisher tube so as to contact a circumferential catch on the extinguisher tube when the extinguisher tube is not released;
- wherein the catch is defined by a ridge protruding circumferentially outward from the extinguisher tube.
Dependencies are inferred from the claim text.