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  Safety wick assembly for effusion lampsUSPTO Application #: 20060134572Title: Safety wick assembly for effusion lamps Abstract: An improved effusion lamp which includes a wick assembly secured to a wick assembly carrier member, and, in turn, the wick assembly carrier member is secured to an oil vessel (with or without an intervening collar interface member) are configured for secure engagement to significantly reduce oil spillage in the event of accident toppling of the effusion lamp. (end of abstract)
Agent: David G. Henry - Waco, TX, US Inventor: David McMinn USPTO Applicaton #: 20060134572 - Class: 431319000 (USPTO) Related Patent Categories: Combustion, Fibrous Wick Type Flame Holder, Having Distinct Fuel Line Between Reservoir And Wick Guide Or Support Means The Patent Description & Claims data below is from USPTO Patent Application 20060134572. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of The Invention [0002] The present invention relates to oil-based lamps and wick assemblies. [0003] 2. Background Information [0004] Effusion lamps have become a very popular home accessory in recent times. Effusion lamps are scented oil lamps which are usually decorative as well as scent-generating means. Current designs for effusion lamps involve a decorative oil vessel with a wick receptacle and an wick assembly (see FIG. 1) which slides telescopically into the vessel's wick receptacle. [0005] A serious problem with current effusion lamp design relates to the probability that a toppled lamp (particularly a burning one) will ignite a catastrophic fire. This, in turn, arises from the design feature which involves the mere sliding engagement between the wick assembly and the lamp vessel (or, if a vessel collar is used, a loose arrangement between all three components). If the lamp is toppled, there is nothing to prevent the wick from disengaging with the vessel and the oil spilling. Again, if at the time of the mishap, the lamp was burning, the oil will likely ignite with very serious consequences. [0006] A new design is needed to address the safety concerns described above. The lack of safer design is believed to arise from a failure of present designers to appreciate a subtle, but important distinction between effusion lamps and conventional fibrous wick based oil lamps. In the latter case, oil can somewhat readily flow through the fibrous wick which extends from the oil vessel through the wick assembly to the exterior of the lamp. As a result, and without an appreciation for the fact that the catalytic wick stone acts as a cap of sorts to prevent oil flow through the wick assembly, one might assume that little would be gained in terms of safety by merely securing the wick assembly to the oil vessel. [0007] The present inventor has recognized the important distinctions between conventional oil lamp and effusion lamp designs, and the safety opportunities that the wick stone member presents, if utilized as herein later described. SUMMARY OF THE INVENTION [0008] In view of the foregoing, it is an object of the present invention to provide an improved effusion lamp. [0009] It is another object of the present invention to provide an effusion lamp of a design which affords enhanced safety by reducing the likelihood of accidental oil spillage. [0010] In satisfaction of these and other related objectives, Applicant's present invention provides an improved effusion lamp which replaces current wick assembly and oil vessel interface with a much safer design. The design of the present invention involves a wick assembly which is secured to a wick assembly carrier member, and, in turn, the wick assembly carrier member and oil vessel (with or without an intervening collar interface member) are configured for secure engagement. The result of this design is that significant oil spillage is unlikely in the event of accident toppling of the effusion lamp. BRIEF DESCRIPTION OF THE DRAWINGS [0011] FIG. 1 is a cross-sectional side elevation view of a wick assembly support member with a catalytic wick assembly in position for intended use in the context of an effusion lamp. [0012] FIG. 2 is a cross-sectional side elevation view of a wick assembly support member, as in FIG. 1, but with the catalytic wick assembly removed, and showing the wick assembly support member's engagement with effusion lamp oil vessel collar member. In the alternative, in the case of the oil effusion lamp vessel itself being configured for threaded engagement with the wick assembly support member (merging the collar and vessel functions into one, unitary structure), this Figure can then be viewed as depicting the upper, neck portion of such a effusion lamp vessel. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0013] With reference to FIGS. 1 and 2, the effusion lamp 10 of the present invention is not shown it its entirety, as the oil vessel portion of the lamp 10 is not separately depicted, but such is well understood in the art to be a liquid-tight receptacle for retaining the oil used with effusion lamps, and can assume appearances and configurations of near limitless variety. [0014] The preferred embodiment of the present invention includes (in addition to the oil vessel) a catalytic wick assembly 12. Catalytic wick assembly 12 includes a fibrous wick member 14 and an attached catalytic wick stone member 16 secured to the fibrous wick member 14. [0015] An elongate wick assembly support member 18 includes a wick passage conduit 20 defined substantially through an axial centerline thereof. The fibrous wick member 14 passes through wick passage conduit 20, with the catalytic wick stone member 16 resting at the outer opening of the wick passage conduit 20 as shown in FIG. 1. [0016] A wick stone retainer 22 secures catalytic wick stone member 16 to the elongate wick assembly support member 18 as shown in FIG. 1. [0017] The outer, substantially annular surface 24 of elongate wick assembly support member 18 is at least partially endowed with a contour which includes threads 24. [0018] Referring principally to FIG. 2, threads 24 are configured to threadingly engage with complimentary threads 26 of a vessel collar member 28. Vessel collar member 28 is intended to serve as an interface linkage between the elongate wick assembly support member 18 and the wick orifice of an oil vessel (not shown) with which interior threads 30 designed to threadingly engage. [0019] Once catalytic wick assembly 12 is secured to elongate wick assembly support member 18, elongate wick assembly support member 18 is secured to vessel collar member 28, and vessel collar member 28 is secured to the oil vessel 32, a substantially "spill fire-proof" effusion lamp is the result. [0020] Although the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limited sense. Various modifications of the disclosed embodiments, as well as alternative embodiments of the inventions will become apparent to persons skilled in the art upon reference to the description of the invention. It is, therefore, contemplated that the appended claims will cover such modifications that fall within the scope of the invention. Continue reading... Full patent description for Safety wick assembly for effusion lamps Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Safety wick assembly for effusion lamps patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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