Candle Extinguisher and a Method for Producing a Candle Extinguisher
A candle extinguisher formed of a thin-plate non-combustible material includes a body with a ring-shaped part defining an inner space and having an inner diameter at least slightly exceeding the outer diameter of a candle on which the candle extinguisher is to be positioned. The body has a plurality of flexible finger elements extending upwardly from the ring-shaped part, each of the finger elements having a proximal part and a distal part. The proximal parts extend substantially in coplanar relationship with the ring-shaped part and are bendable outwardly relative to the inner space defined by the ring-shaped part. Each of the distal parts is bent substantially perpendicularly relative to a respective proximal part and extends inwardly relative to the inner space defined by the ring-shaped part. Each of the distal parts has a length at least one half the width of the inner space defined by the ring-shaped part.
The present invention relates to a candle extinguisher comprising a unitary body of a thin plate material and made from a non-combustible or non-inflammable material, i.e. material which is not caused to burn, melt or otherwise be deteriorated when contacted with the burning flame of a candle or when exposed to the heat generated by the burning flame of a candle.
For centuries, a candle extinguisher has been used, which candle extinguisher is made from a conical metal cup having a rod constituting a handle by means of which the cup is positioned in an inverted state on the top of a candle for extinguishing the candle by preventing oxygen from being admitted to the burning candle.
The technique of extinguishing a burning candle has also been refined throughout several decades as candle extinguishers have been developed as described in, among others, DE 177488, DE 162195, U.S. Pat. No. 4,818,214 and WO 02057688. Reference is made to the above publications and the above US patent is hereby incorporated in the present specification by reference.
Common to these prior art candle extinguishers is the technical functionality of the extinguishers as the extinguishers have been developed for providing an automated functionality similar to the above-described candle extinguisher as the candle extinguishers described in the above publications are based on the technique of extinguishing a burning candle by closing off a compartment in which the burning flame is enclosed for causing the flame to be extinguished by the prevention of admission of oxygen to the burning flame.
The inventor has through certain test of thin plate candle extinguishers to some extent resembling the candle extinguishers described in the above-mentioned publications realised that an improvement of the automated candle extinguishing technique may be developed provided a different approach of causing the candle to be extinguished be deduced.
It is an object of the present invention to provide a candle extinguisher being made preferably in a unitary structure from a lightweight and inexpensive flame resistant material such as carbon steel or stainless steel plate which candle extinguisher provides a reliable extinguishing of a burning candle eliminating the risk of not extinguishing the burning candle as is the case with the prior art candle extinguishers, which do not function provided oxygen be admitted to the closing off chamber in which the burning flame is enclosed. A risk exists in the prior art technique as a mechanical deterioration of the candle extinguisher or an extremely long burning flame may prevent the candle extinguisher from operating properly meaning that the candle continues to burn although the candle extinguisher be positioned correctly on the burning candle.
The above object together with numerous other objects, advantages and features which will be evident from the below detailed description of the presently preferred embodiments of the candle extinguisher according to the present invention are according to the teachings of the present invention obtained by a candle extinguisher comprising a unitary body of a thin-plate material, the thin-plate material being non-combustible or non-inflammable when exposed to the burning flame of a candle, the body having a ring-shaped part defining an inner space of the candle extinguisher and having an inner diameter at least slightly exceeding the outer diameter of a candle on which the candle extinguisher is to be positioned, the body having a plurality of flexible finger elements extending upwardly from said ring-shaped part, each of the flexible finger elements comprising a proximal part and a distal part, the proximal parts extending substantially in coplanar relationship with the ring-shaped part and being bendable from the coplanar relation outwardly relative to the inner space defined by the ring-shaped part, each of the distal parts being bent substantially perpendicularly relative to a respective proximal part and extending inwardly relative to the inner space defined by the ring-shaped part, each of the distal parts having a length at least exceeding one half of the width of the inner space defined by the ring-shaped part.
According to the teachings of the present invention, the candle extinguisher is of a structure different from the structure of the prior art candle extinguishers and further has a functionality different from the functionality of the prior art candle extinguishers. The candle extinguishers according to the present invention functions as follows.
The candle extinguisher is before the lightning of a candle positioned at a certain level or height above the supporting candle holder or a supporting surface such as a supporting table. The position corresponds to the height at which the candle is intended to be extinguished.
By the positioning of the candle extinguisher on the candle, the finger elements are bent outwardly as the proximal parts extend outwardly and as the outermost ends of the distal parts contact the outer circumference of the candle. Basically the candle, when positioned on a candle resembles a lightrosette. However, at the time of extinguishing the candle, at which time the candle has burned away until the level corresponding to the position of the upper end of the candle extinguisher, the distal parts of the finger elements are pressed into contact with the outer surface of the wick of the candle at a position below the burning flame.
The process of contacting the outer ends of the distal parts of the finger elements with the outer surface of the wick is a process in which the flexibility of the finger elements causes the distal parts to move from the contact with the outer surface of the candle into contact with the outer surface of the wick as the material of the candle is burned away and eventually, the outer ends of the distal parts of the finger elements tightly contacts the outer surface of the wick and closes off any space around the wick and in doing so prevents the wick from transporting melted and combustible stearin or similar materials such as wax from the candle to the burning wick constituting the flame of the candle. As will be understood, the turning off or extinguishing of the candle by the candle extinguisher according to the present invention is a technique involving tightly closing off the top part of the wick which burns in the flame from the reservoir below the candle extinguisher.
According to the teachings of the present invention, the distal parts must have a length allowing the outer ends of the distal parts to be tightly pressed against the outer surface of the wick for closing off the burning part of the wick from the remaining part of the candle and this closing off is established provided the distal parts have a length at least exceeding one half of the width of the inner space defined by the ring-shaped part. Normally, the ring-shaped part has a circular cylindrical part and the half width of the inner space defined by the ring-shaped part consequently corresponds to the radius of the circular cylindrical part.
The candle extinguisher according to the present invention is preferably made as a unitary structure from a single thin plate material as the ring-shaped part and the flexible finger elements comprising the proximal parts and the distal parts are preferably made from one and the same flexible thin plate material such as carbon steel or stainless steel or a high temperature resistant plastics material or another metal material such as titanium, aluminium, copper, silver, gold or platinum or alloys thereof such as noble or semi-noble alloys. The thin plate material is preferably of a thickness of 50-500 μm, preferably approximately 100-150 μm for allowing the proximal parts of the finger elements to be easily bent outwardly when positioning the candle extinguisher on the candle for the intentional use of the candle extinguisher.
In order to obtain an adequate flexibility of the proximal parts of the finger elements, each of the proximal parts preferably have a length at least exceeding the lengths of the distal parts such as preferably a length corresponding to approximately two times the length of the distal parts or even more.
The proximal parts of the finger elements of the candle extinguisher according to the present invention may have any appropriate size and configuration and may e.g. be configurated as thin plate elements or alternatively as rectangular plate elements in combination defining a circumference substantially corresponding to the circumference of the ring-shaped part. According to the presently preferred embodiment of the candle extinguisher according to the present invention, the proximal parts are substantially of a rectangular configuration and the width of each of the proximal parts are at the most one half the length of the proximal part for providing a fairly easily flexible proximal part.
The distal parts exhibit as discussed above the feature characteristic of the present invention of defining a length at least exceeding one half the width of the inner space defined by the ring-shaped part. When fulfilling this feature, the distal parts may have any appropriate shape such as a rectangular, a semi-elliptical or other shape or a combination thereof. However, according to the presently preferred embodiment of the candle extinguisher according to the present invention, the distal parts preferably have a shape substantially of an isosceles triangle, the base line of which is congruent with the outermost end of the respective proximal part, thereby providing a straight continuation of the proximal part.
Dependent on the size of the candle, the number of finger elements of the above-mentioned plurality of finger elements may vary from a fairly low integer to a fairly high integer such as between 3 and 30. It is contemplated that the number of finger elements may further advantageously and preferably be of the order of 5-20, such as 8-16 and according to the most preferred embodiment, the number of finger elements are 10 or 12.
The present invention also relates to a method of producing the candle extinguisher comprising a unitary body of a thin-plate material, said thin-plate material being non-combustible or non-inflammable when exposed to the burning flame of a candle, the body having a ring-shaped part defining an inner space of the candle extinguisher and having an inner diameter at least slightly exceeding the outer diameter of a candle on which the candle extinguisher is to be positioned, the body having a plurality of flexible finger elements extending upwardly from the ring-shaped part, each of the flexible finger elements comprising a proximal part and a distal part, the proximal parts extending substantially in coplanar relationship with the ring-shaped part and being bendable from said coplanar relation outwardly relative to the inner space defined by the ring-shaped part, each of the distal parts being bent substantially perpendicularly relative to a respective proximal part and extending inwardly relative to the inner space defined by the ring-shaped part, and each of the distal parts having a length at least exceeding one half of the width of the inner space defined by the ring-shaped part, the method comprising the steps of cutting a blank from a thin-plate material, the blank including a bottom shape part constituting a web of the thin-plate material and a plurality of flexible finger elements extending to the one side from the web and including inner parts and outer parts, the step of turning the blank into a cylindrical body having the web constituting the ring-shaped part and having the inner parts constituting the proximal parts and the outer parts constituting the distal parts, and bending in a single-step operation or a multi-step operation, the distal parts perpendicularly relative to the proximal parts.
The method according to the present invention allows the production of the candle extinguisher according to the present invention in a integrated process involving the machining of a thin plate metal plate exclusively in a continuous process or an intermittent process. According to alternative embodiments of the method according to the present invention, the steps of cutting the blank from the thin plate material is performed as a roller cutting operation or alternatively as an intermittent operation involving the movement of a plunger in a reciprocating operation relative to the thin plate material and correspondingly, the step of bending the distal parts of the finger elements relative to the proximal parts of the finger elements may be performed in a single operation in which the distal parts are bent substantially perpendicular relative to the proximal parts or alternatively in a two or three step operation involving e.g. a pre-bending of the distal parts before turning the blank into the cylindrical body in an angle of approximately 45° and a final bending step of further bending the distal parts further 45° relative to the proximal parts for accomplishing the substantial perpendicular orientation of the distal parts relative to the proximal parts.
The invention is now to be further described with reference to the drawings in which:
In
It is to be realised that the terms, such as upper, lower, bottom, top, proximal and distal as used in the present context are all to be construed in the context of the intentional use of the candle extinguisher, as the candle extinguisher is intended to be used mounted on a candle which is conventionally positioned vertically and having the ring-shaped part 12 as a lower most part of the candle extinguisher.
In
The candle extinguisher 10 may be produced in different sizes, such as a dimension corresponding to the diameter of the ring-shaped bottom part 12 ranging from 14 mm-32 mm, such as produced in distinct sizes 14 mm, 22 mm, 24 mm and 32 mm. Dependent on the diametrical size of the candle extinguisher, the height of the candle extinguisher may vary from approximately 20 mm-40 mm, as the height of the candle extinguisher is somewhat larger than the candle extinguisher.
The slits 18 separating the finger element 14 from its adjacent or neighbouring finger element may extend to only a few mm above the lower rim of the ring-shaped part 12, as the ring-shaped part 12 merely serves the purpose of providing mechanical integrity and sufficient strength for allowing the finger elements 14 from being bent outwardly as is illustrated in
The finger elements 14 are in the embodiment shown in
In
In
A particular feature of the technique of producing the candle extinguisher, as is illustrated in
In
In
Finally, in the step illustrated in
The technique illustrated in
A prototype embodiment of the candle extinguisher 10 shown in
Surprisingly, the extinguishing process turned out to be performed within only a few seconds from the time at which the distal parts 16 of the finger elements 14 were reaching above the edge of the candle until the outermost end of the distal parts 16 had separated the upper burning wick, i.e. the flame from the remaining part of the candle without cutting off the wick, still preventing any combustible wax or stearinous material from being sucked into the burning flame. The photographs of
Although the present invention has been described above with reference to specific and presently preferred embodiments of the candle extinguisher according to the present invention and according to a method also constituting part of the present invention, the candle extinguisher and a method of producing a candle extinguisher may be modified in numerous ways as will be evident to a person having ordinary skill in the art without deviating from the scope and intention of the invention as defined in the appending claims.
Claims
1. A candle extinguisher comprising a unitary body of a thin-plate material, said thin-plate material being non-combustible or non-inflammable when exposed to the burning flame of a candle,
- said body having a ring-shaped part defining an inner space of said candle extinguisher and having an inner diameter at least slightly exceeding the outer diameter of a candle on which the candle extinguisher is to be positioned,
- said body having a plurality of flexible finger elements extending upwardly from said ring-shaped part, each of said flexible finger elements comprising a proximal part and a distal part,
- said proximal parts extending substantially in coplanar relationship with said ring-shaped part and being bendable from said coplanar relation outwardly relative to said inner space defined by said ring-shaped part,
- each of said distal parts being bent substantially perpendicularly relative to a respective proximal part and extending inwardly relative to said inner space defined by said ring-shaped part,
- each of said distal parts having a length at least exceeding one half of the width of said inner space defined by said ring-shaped part.
2. The candle extinguisher according to claim 1, said ring-shaped part and said flexible finger elements being made from carbon steel of a thickness of 50μ-500μ.
3. The candle extinguisher according to claim 1, each of said proximal parts having a length at least approximately 2× the length of said distal parts.
4. The candle extinguisher according to claim 1, said proximal parts having substantially a rectangular configuration, the width of each of said proximal parts being at the most one half the length of said proximal part.
5. The candle extinguisher according to claim 1, each of said distal parts having the shape of an isosceles triangle, the base line of which is congruent with the outermost end of the respective proximal part.
6. The candle extinguisher according to claim 1, said plurality being at least 3 and the most 30.
7. A method of producing a candle extinguisher comprising a unitary body of a thin-plate material, said thin-plate material being non-combustible or non-inflammable when exposed to the burning flame of a candle,
- said body having a ring-shaped part defining an inner space of said candle extinguisher and having an inner diameter at least slightly exceeding the outer diameter of a candle on which the candle extinguisher is to be positioned,
- said body having a plurality of flexible finger elements extending upwardly from said ring-shaped part, each of said flexible finger elements comprising a proximal part and a distal part,
- said proximal parts extending substantially in coplanar relationship with said ring-shaped part and being bendable from said coplanar relation outwardly relative to said inner space defined by said ring-shaped part,
- each of said distal parts being bent substantially perpendicularly relative to a respective proximal part and extending inwardly relative to said inner space defined by said ring-shaped part, and
- each of said distal parts having a length at least exceeding one half of the width of said inner space defined by said ring-shaped part,
- said method comprising the steps of cutting a blank from a thin-plate material, said blank including a bottom shape part constituting a web of said thin-plate material and a plurality of flexible finger elements extending to the one side from said web and including inner parts and outer parts, the step of turning said blank into a cylindrical body having said web constituting said ring-shaped part and having said inner parts constituting said proximal parts and
- said outer parts constituting said distal parts, and bending said distal parts perpendicularly relative to said proximal parts.
Type: Application
Filed: Nov 1, 2004
Publication Date: May 8, 2008
Inventor: Knud E. Johansen (Thisted)
Application Number: 10/577,647
International Classification: F23Q 25/00 (20060101);