Liquid fuel burning heater having flame stopping means
OwnerHarold Josephs, Levon H. Keshishianinventors
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Abstract
An apparatus for extinguishing undesired flames in liquid fuel-burning heaters having a wick partially disposed in a fuel supply reservoir in fluid communication with a fuel tank said apparatus comprising fuel flow cut-off means for interrupting said fluid communication in response to sensing excessive heat and wick withdrawal means for retracting said wick entirely into said wick fuel supply reservoir in response to sensing of excessive heat.
Claims6
An apparatus for extinguishing undesired flames in liquid fuel-burning heaters having a wick partially disposed in a fuel supply reservoir in fluid communication with a fuel tank said apparatus comprising:
- fuel flow cut-off means for interrupting said fluid communication in response to sensing excessive heat;
- and
- wick withdrawal means for retracting said wick entirely into said wick fuel supply reservoir in response to sensing of excessive heat.
A method of limiting the spread of undesired flames in liquid fuel-burning heaters, comprising the steps of:
- detecting excessive heat with an expandable heat sensor;
- tripping the first end of a pivotal lever with said expanded heat sensor causing a second end of said pivotable lever to disengage a rotatable spring loaded ratchet control gear;
- causing the spring of said ratchet control gear to unwind thereby rotating said ratchet control gear effectuating disengagement of a wick;
- and
- causing said wick to drop into a wick receiving chamber to suffocate the flame.
A method of limiting the spread of undesired flames in liquid fuel-burning heaters, comprising the steps of:
- joining an expandable heat sensor to a first pin;
- joining said first pin to a first plunger within an elongated sleeve;
- abutting a blocking wall portion of said first plunger and a blocking wall portion of a second plunger with a first compressible spring, wherein said second plunger has a circumferential groove near said blocking wall;
- joining a second pin to the leading end of said second plunger;
- inserting the leading end of said second pin through an axial bore of a valve member coupled to said elongated sleeve;
- providing said valve member with a valve seat to tightly entertain the leading end of said second pin;
- detecting excessive heat with said heat sensor;
- and
- causing expansion of the heat sensor thereby driving the first pin into said first plunger, compressing said first spring thereby transferring forces on said second plunger causing said second plunger to shift forward within said elongated sleeve thereby driving the leading end of said second pin into said valve seat to prevent fluid flow.
Dependencies are inferred from the claim text.