Floating wick holder
AssigneeRizla Limited
InventorDavid Crisp
Life of this patent
Estimating the term…
Abstract
A lamp comprising a wick-holder moulded in one piece from poly-4-methylpent-1-ene or like plastics material which is naturally buoyant upon combustible oil and which includes a central wick-retaining recess, a peripheral portion disposed above the recess, and at least one arm linking said recess to said peripheral portion and disposed below the peripheral portion. In use the lamp holder floats in oil with the central wick-retaining recess and the or each arm submerged and with only the peripheral portion floating.
Claims3
A floating wick-holder for a lamp, said wick-holder being molded in one piece from a plastic material which has a density less than that of combustible oil and is naturally buoyant thereon, said wick-holder including a central portion defining a generally cylindrical hole for directly receiving and retaining a wick, a peripheral portion disposed around the central portion and offset axially therefrom, and at least one arm linking the central portion to the peripheral portion, the volume of said central portion relative to the entire volume of said wick-holder being such that said portion will displace less weight of oil than the total weight of said wick-holder causing said central portion and at least part of said linking arm to sink below the surface when said wick-holder is placed in oil thereby to preclude flame damage to said wick-holder when the wick is ignited.
A lamp comprising in combination:
- a body of water;
- a layer of combustible oil floating on said body of water, and
- a wick-holder moulded in one-piece from poly-4-methylpent-1-ene floating by means of natural buoyancy in said layer of combustible oil with a central wick-retaining recess portion submerged in said oil layer and containing a vertically disposed wick protruding above the surface of said oil layer, a peripheral portion of said wick-holder contacting the surface of said layer of oil, and an arm submerged in said oil layer linking said central recess portion to said peripheral portion.
Dependencies are inferred from the claim text.