1. Field of the Invention
This disclosure generally relates to illumination devices such as lamps that employ a flame and a consumable fuel such as a paraffin based liquid or gel.
2. Description of the Related Art
Candles are becoming an increasingly popular item for adding ambiance to homes and other environments. Candles typically include a consumable wax based fuel that is essentially solid at standard room temperatures. Candles suffer from a number of drawbacks which may hinder commercial sales. Many candles including so-called “dripless” candles, drip molten wax during use, creating a safety hazard and leaving undesirable wax deposits on the sides of the candle, candleholders, tabletops and other surfaces. With standard, non-tapered candles, the end of the wick and hence the flame rapidly recedes below the upper rim of the candle, reducing the amount of effective light emitted by the candle and diminishing the candle's aesthetic appeal. This may be a particular problem for candles over approximately three inches in height or with relatively large diameters, which are otherwise preferred by many consumers. This effect is so pronounced that consumers are known to dispose of candles long before the major portion of the candle has been exhausted.
Oil based lamps are also increasingly popular for providing ambience to homes, patios and other environments. Oil based lamps typically burn a consumable paraffin based liquid or gel. Oil based lighting has the advantage of being refillable, and hence reusable, but oftentimes does not have the same aesthetic appeal of a candle. It would be desirable to have an illumination device with the aesthetic appeal of a candle, that is refillable, and which overcomes some of the deficiencies discussed above.
In one aspect, a lamp comprises a body having an upper end and a lower end opposed to the upper end, the body comprising a wall having an outer perimeter and an inner perimeter, the inner perimeter of the wall forming at least a portion of a receptacle, the receptacle open about at least one of the upper and the lower ends of the body; a cover removably positionable with respect to the open one of the upper and the lower ends of the body to substantially close the receptacle when in use; and a non-flammable inner member positioned in one of the cover and the body, the inner member forming an aperture therethrough for providing access to an exterior of the receptacle, the aperture sized to receive a portion of a wick therethrough, wherein the one of the body and the cover in which the inner member is positioned has a concave face concentric about the inner member and is translucent at least proximate the concave face, and wherein the aperture is spaced below an outer edge of the concave space.
In another aspect, a lamp comprises: a body having an upper end and a lower end opposed to the upper end, the body comprising a wall having an outer perimeter and an inner perimeter, the inner perimeter of the wall forming at least a portion of a receptacle, the receptacle having an opening proximate at least the upper end of the body; and a cover removably positionable with respect to the upper end of the body to substantially close the opening of the receptacle, the cover comprising an outer member and an inner member, the outer member having a concave face with an outer edge, at least a portion of the outer member proximate the concave face being translucent, and, the inner member having an aperture formed therethrough for providing access to an exterior of the receptacle, the aperture sized to receive a portion of a wick therethrough, wherein an exit for the wick formed by the aperture is spaced relatively beneath the outer edge of the concave face.
In still a further aspect, a lamp comprises: a body having an upper end and a lower end opposed to the upper end, the body comprising a wall, having an outer perimeter and an inner perimeter, the inner perimeter of the wall forming at least a portion of a receptacle, the receptacle open proximate at least one of the upper and the lower ends of the body; a cover having a concave face, the cover removably positionable with respect to the upper end to substantially close the receptacle, the cover comprising an outer portion and an inner portion of the similar materials, the inner portion having an aperture formed therethrough for providing access to an exterior of the receptacle, the aperture sized to receive a portion of a wick therethrough, wherein the outer portion of the cover is translucent and wherein an outer edge of the concave face is approximately coextensive with an outer perimeter of the cover, and the outer perimeter of the cover is closely received by the inner perimeter of the wall forming the receptacle; an opaque screen having an outer perimeter sized for being closely received in the receptacle beneath the cover, the opaque screen having a hole sized to at least receive a portion of the wick therethrough, the opaque screen having a reflective surface facing the cover.
In the drawings, identical reference numbers identify similar elements or acts. The sizes and relative positions of elements in the drawings are not necessarily drawn to scale. For example, the shapes of various elements and angles are not drawn to scale, and some of these elements are arbitrarily enlarged and positioned to improve drawing legibility. Further, the particular shapes of the elements as drawn, are not intended to convey any information regarding the actual shape of the particular elements, and have been solely selected for ease of recognition in the drawings.
In the following description, certain specific details are set forth in order to provide a thorough understanding of various embodiments of the invention. However, one skilled in the art will understand that the invention may be practiced without these details. In other instances, well-known structures associated with lamps have not been shown or described in detail to avoid unnecessarily obscuring descriptions of the embodiments of the invention.
Unless the context requires otherwise, throughout the specification and claims which follow, the word “comprise” and variations thereof, such as, “comprises” and “comprising” are to be construed in an open, inclusive sense, that is as “including, but not limited to.”
Reference throughout this specification to “one embodiment” or “an embodiment” means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment. Further more, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The headings provided herein are for convenience only and do not interpret the scope or meaning of the claimed invention.
The lamp 10 includes a body 16, a cover 18, and an opaque screen 20. The body 16 has an upper end 22 and a lower end 24 opposed to the upper end 22. The body 16 comprises a wall 26 having an outer perimeter 28 and an inner perimeter 30, the inner perimeter 30 forming a receptacle 32 having at least one opening 34. While illustrated as being cylindrical, the body 16 may be any desired shape and/or size.
In the embodiment illustrated in
In the embodiment of
The outer member 38 includes a concave face 42 having an outer edge 44. The concave face 42 may have a non-linear profile or slope. For example, the profile or slope of the concave face 42 may be concave (as best seen in
The outer member 38 may, or may not, be formed of a non-flammable material. The outer member 38 should be translucent, particular around the perimeter 46 proximate the concave face 42, to provide a visual effect similar to that of a candle. Some suitable materials for the outer member may, for example, include a thermal setting resin, glass filed nylon resin, or acetal resin such as Delrin® which is commercially available from E.I. du Pont de Nemours and Company of Wilmington Del. These materials will exhibit a limited amount of expansion when exposed to heat from a flame. The outer member 38 may be formed by various conventional molding techniques, for example, via injection modeling, with the inner member 40 secured within the outer member 38 or selectively removable therefrom.
The inner member 40 forms an aperture 48 to provide access to an exterior of the receptacle 32, the aperture 48 sized at least to receive at a portion of a wick 50 therethrough. The inner member 40 may include a recess 52 in a bottom surface thereof, the recess 52 sized and dimensioned for mating with a complimentary structure 54 of a lid 56 of the canister 14. The inner member 40 may include a channel 58 proximate the aperture 48 to carry a scented oil which. The channel 58 may, for example, be concentric with the aperture 48. While illustrated as having a circular perimeter 46, the cover 18 can be any desired shape.
The inner member 40 is formed from a non-flammable material, and may be formed of a metal, particularly a high density metal such as a high density steel. An upper surface of the inner member 40 may further be coated with a thin layer of a material (e.g., powder coat) identical or similar to that of the outer member 38 to visually blend the inner member 40 with the outer member 38. Alternatively, the inner member 40 may be painted or otherwise colored to closely resemble the appearance of the outer member 38, although such may not be necessary in all embodiments.
A design may be printed on potions of the body 16 and the cover 18. Preferably the design is continuous across the adjacent portions of the body 16 and cover 18, without any visually perceptible breaks. One method of printing a design is via a dye sublimation process, which includes vaporizing the dyes via heating to deposit the dyes onto the target substrate (e.g., body 16 and cover 18). Such a process is commercially available from KolorFusion International of Centennial Colorado.
The opaque screen 20 has an outer perimeter 62 and forms a hole 64, the hole 64 being sized to receive a portion of the lid 56 of the canister 12 therethrough including the wick 50. The opaque screen 20 is received between a bottom of the cover 18 and the top of the canister 12, to prevent light emitted by a flame burning on the outer portion of the wick 50 from passing through the canister 12 and potentially illuminating lower portions of the body 16. This is particular useful where the body 16 is molded from a single piece of translucent material, since it simulates the appearance of a real candle, which is only translucent proximate the top portion (i.e., proximate and immediately below the concave face 42). While not specifically illustrated, the opaque screen 20 may be formed on the cover 18, for example, by printing or otherwise depositing an opaque material on a bottom thereof or by molding the opaque screen 20 therein.
In the embodiment of
Although specific embodiments of and examples for the lamp and method of manufacture and use are described herein for illustrative purposes, various equivalent modifications can be made without departing from the spirit and scope of the invention, as will be recognized by those skilled in the relevant art. The teachings provided herein of the invention can be applied to lamps, not necessarily the lamps generally described above.
The various embodiments described above can be combined to provide further embodiments. These and other changes can be made to the invention in light of the above-detailed description. In general, in the following claims, the terms used should not be construed to limit the invention to the specific embodiments disclosed in the specification and the claims, but should be construed to include all lamps that comprise the structures of the claims. Accordingly, the invention is not limited by the disclosure, but instead its scope is to be determined entirely by the following claims.
All of the above U.S. patents, U.S. patent application publications, U.S. patent applications, foreign patents, foreign patent applications and non-patent publications referred to in this specification and/or listed in the Application Data Sheet, including but not limited to U.S. Design patent application Ser. No. 29/197,093, entitled “OIL LAMP,” and filed Jan. 8, 2004, and U.S. Design patent application Ser. No. 29/197,094, entitled “OIL LAMP,” and filed Jan. 8, 2004, are incorporated herein by reference, in their entirety.
Number | Name | Date | Kind |
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925563 | Coulter | Jun 1909 | A |
3697739 | Novak et al. | Oct 1972 | A |
4693681 | Comstock | Sep 1987 | A |
4917598 | Stoner | Apr 1990 | A |
5127825 | Tendick, Sr. | Jul 1992 | A |
Number | Date | Country | |
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20050152136 A1 | Jul 2005 | US |