This invention is related to a flame simulating assembly including a simulated fireplace, a controller configured to control the simulated fireplace, and an ambient light sensor positioned outside the simulated fireplace, the controller being adapted to increase or decrease the intensity of light produced by the simulated fireplace in response to signals from the ambient light sensor.
Various types of flame simulating assemblies, such as electric fireplaces, are known. Many of the prior art flame simulating assemblies include a simulated fuel bed which resembles a burning solid combustible fuel, as well as embers and ashes resulting from the combustion. For example, U.S. Pat. No. 566,564 (Dewey) discloses an electric heating apparatus with a cover (B′) which “is made . . . of a transparent or semitransparent material” (p. 1, lines 50-52). The cover is “fashioned or colored” so that it resembles coal or wood “in a state of combustion when light is radiated through it” (p. 1, lines 53-57).
However, the use of a cover or a (partially translucent shell) such as the cover disclosed in Dewey to imitate burning solid combustible fuel has some disadvantages. First, a portion of the shell typically is formed to simulate the fuel (e.g., logs), and another portion of the shell simulates an ember bed (i.e., embers and ashes) which results from combustion of the fuel. For instance, where the combustible fuel to be simulated is wood in the form of logs, the logs are simulated in the shell by raised parts which are integral to the shell, rather than pieces which are physically separate from the ember bed. Because it is evident from even a cursory observation of this type of prior art simulated fuel bed that the raised parts (i.e., simulated logs) are actually formed integrally with the simulated ember bed part of the shell, this type of simulated fuel bed tends to detract from the simulation effect sought.
Another disadvantage of the prior art results from characteristics of the typical light source which is intended to provide light which imitates the light produced by glowing embers in a real fire. In the prior art, the same light source is often used to provide both a flame effect (i.e., to simulate flames), and an ember simulation effect (i.e., to simulate glowing embers). However, the characteristics of light from embers are somewhat different from those of light from flames. For instance, embers generally tend to glow, and pulsate, but flames tend to flicker, and move. Because of these differences, attempts in the prior art to use the same light source to provide a flame simulation effect and a burning ember simulation effect have had somewhat limited success.
Also, the positioning of the light source intended to provide the ember simulation effect is somewhat unsatisfactory in the prior art. In a natural fire, most glowing embers are located on partially-consumed fuel, and the balance of the glowing embers are located in the ember bed. However, in the prior art, the relevant light source is positioned somewhat lower than the simulated fuel portions, i.e., beneath the shell. Accordingly, because the light which is simulating the light from glowing embers is located well below the shell, an observer can easily see that the light does not originate in the vicinity of the raised portions representing logs, but instead is originating from below the shell. In this way, the usual location of the light source in the prior art undermines the simulation effect.
U.S. Pat. No. 2,285,535 (Schlett) discloses an attempt to address the problem of the fuel parts being obviously integrally formed with the simulated ember bed. Schlett discloses a “fireplace display” including “an arrangement of actual fuel or of a fuel imitation . . . such as imitation wood logs” (p. 1, lines 22-24). In Schlett, therefore, the problem of the simulated logs appearing unrealistically to be part of the simulated ember bed is apparently addressed by the “fuel” (i.e., either actual logs or imitation logs, and also either actual lumps of coal or imitations thereof) being presented as discrete physical entities in the absence of an ember bed (as shown in
WO 01/57447 (Ryan) discloses another attempt to provide a more realistic simulated fuel bed. Ryan discloses “hollow simulated logs”, each of which includes an ultraviolet light tube (p. 11, lines 25-27). The simulated logs are described as preferably being made from cardboard tubing, but also may be constructed in other ways (p. 12, lines 18-27 and p. 13, line 1). An ember simulator is provided which is painted with fluorescent paint (p. 18, lines 4-6). Also, silk flame elements, meant to simulate flames, are treated so that they fluoresce when exposed to ultraviolet light from the ultraviolet light tubes positioned in the cardboard tubing. The tubing includes apertures to permit exposure of fluorescent elements to ultraviolet light from inside the tubing. However, the tubing appears unrealistic in appearance, and the fluorescing portions would appear to be unconvincing imitations of flames and embers, which would generally not be fluorescent in a natural fire.
In addition, the flame simulating assemblies of the prior art typically do not provide for control, beyond activation and de-activation, of the light sources providing images of flames or other light sources. In particular, prior art flame simulating assemblies do not typically include controls which provide for increases or decreases in the intensity of the light provided by one or more light sources in relation to ambient light intensity.
There is therefore a need for a simulated fuel bed to overcome or mitigate at least one of the disadvantages of the prior art.
In its broad aspect, the invention provides a flame simulating assembly including a simulated fireplace having a flame image subassembly for providing images of flames and one or more light sources configured to provide light having an intensity. The flame simulating assembly also includes a controller for controlling the simulated fireplace and an ambient light sensor positioned outside the simulated fireplace for sensing ambient light intensity. The ambient light sensor is adapted to transmit a first signal to the controller upon the ambient light intensity being greater than a predetermined first ambient light intensity, and the ambient light sensor is also adapted to transmit a second signal upon the ambient light intensity being less than a predetermined second ambient light intensity. The controller is adapted to increase the intensity of the light provided by the light source upon receipt of the first signal, to a first predetermined maximum. The controller is also adapted to decrease the intensity of the light provided by the light source upon receipt of the second signal, to a first predetermined minimum.
In another of its aspects, the flame simulating assembly additionally includes a remote control device positionable apart from the simulated fireplace. The ambient light sensor is positioned on the remote control device.
In another aspect, the invention provides a flame simulating assembly including a simulated fireplace having a flame image subassembly for providing images of flames, a simulated fuel bed, and one or more light sources for supplying light having an intensity. The simulated fuel bed is positioned so that the images of flames at least partially appear to emanate from the simulated fuel bed. The flame simulating assembly also includes a controller for controlling the simulated fireplace, and an ambient light sensor positioned outside the simulated fireplace for sensing ambient light intensity. The controller is configured to effect a preselected change in the intensity of the light supplied by the light source upon the ambient light intensity differing from the intensity of the light from the light source to a predetermined extent.
In yet another aspect, the preselected change is to cause the intensity of the light from the light source to be proportional to the ambient light intensity.
In another aspect, the invention provides a flame simulating assembly including a simulated fireplace having a flame image subassembly for providing images of flames, one or more light sources configured to provide light having an intensity, and a simulated fuel bed. The flame image subassembly is positioned relative to the simulated fuel bed so that said images of flames at least partially appear to emanate from the simulated fuel bed. The flame simulating assembly also includes a controller for causing the flame image subassembly to provide a predetermined sequence of changes in the images of flames, and a remote control device for controlling the simulated fireplace. The remote control device includes a user interface for receiving input from the user and converting the input into user input signals, an occupancy sensor for detecting motion, the occupancy sensor being adapted to generate occupancy-related signals upon detection of motion, a microprocessor for converting the user input signals and the occupancy-related signals into processed user input signals and occupancy-related signals respectively, and a transmitter for transmitting the processed user input signals and occupancy-related signals to the receiver on the simulated fireplace. The flame simulating assembly also includes a receiver operatively connected to the controller, configured to transmit the processed user input signals and occupancy-related signals received thereby to the controller, whereby the simulated fireplace is controllable by the processed user input signals and the occupancy-related input signals transmitted from the remote control device.
In yet another of its aspects, the remote control device additionally includes an ambient light sensor configured to generate ambient light signals indicating ambient light intensity, the microprocessor being adapted to convert the ambient light signals into processed ambient light processed signals. Upon the controller's receipt of the processed ambient light signals, the controller adjusts the light source to adjust the intensity of the light in accordance with a predetermined relationship between the intensity of the light and the ambient light intensity.
The invention will be better understood with reference to the drawings, in which:
Reference is first made to
As shown in
Preferably, the simulated solid combustible fuel elements 22 include one or more light-producing simulated solid combustible fuel elements 26. In one embodiment, each light-producing simulated solid combustible fuel element 26 preferably has a body 28 which is also colored and formed to resemble an entire solid combustible fuel element, and which includes one or more cavities 30 therein. The light-producing simulated solid combustible fuel element 26 also preferably includes one or more fuel light sources 32 which are positioned to direct light therefrom inside the cavity 30. As will be described, the light sources 32 in each light-producing simulated solid combustible fuel element 26 are preferably included in a fuel light source subassembly 33. Preferably, the pile 25 includes more than one light-providing simulated fuel element 26, and the elements 26 are positioned and arranged in the pile 25 for optimum simulation of a natural fire, as will be described. It will be understood that, alternatively, only one light-producing simulated fuel element 26 may be used, if desired.
In one embodiment, the body 28 additionally includes an exterior surface 34 and one or more light-transmitting parts 36 extending between the cavity 30 and the exterior surface 34. Each light-transmitting part 36 is preferably positioned in a path of light from the light source 32, as shown schematically by arrow “A” in
Preferably, and as shown in
In one embodiment, the fuel light source subassembly 33 preferably includes two or more light sources 32 which are positioned to direct light therefrom inside the cavity 30 to the light-transmitting part 36. Also, it is preferred that each light source 32 is a light-emitting diode (LED). The fuel light source subassembly 33 preferably also includes a printed circuit board (PCB) 37 on which the LEDs 32 are mounted. It will be understood that the PCB 37 includes the necessary circuitry and other electronic components required for operation of the LEDs 32, as is known in the art. The PCB 37 is connectable to a source of electrical power (not shown), for operation of the LEDs 32. The manner in which the PCB 37 is connected to the power source is not shown in the drawings because it is well known in the art.
In the preferred embodiment, and as can be seen in
As can be seen in
Preferably, and with a view to achieving a realistic appearance, the exterior surface is substantially covered with paint or any suitable coloring agent, in any suitable colors (e.g., black and/or grey and/or brown), mixed and/or positioned as required. However, it is preferred that the paint (or coloring agent) is spread only thinly, or not at all, in or on the preselected parts 38 on the exterior surface 34 which are intended to allow light to be transmitted therethrough, for simulating glowing embers. The preselected parts 38 may be substantially exposed areas 42, and also preferably include one or more crevices 40 (
For example, the paint or other coloring agent is preferably applied so that it is relatively thin in a substantially exposed area 42, and also so that the paint substantially does not cover the crevice 40 (
The parts 39 of the exterior surface 34 which are not intended to simulate glowing embers preferably are treated so that they have sufficient paint (or coloring agent) on them to block light from the fuel light source(s) 32. For example, where the fuel which is simulated is wood, the parts 39 preferably resemble the parts of a burning natural log which do not include glowing embers. As shown in
The color of the light produced by the fuel light source 32 and the color of the translucent material of the body 28 which includes the light-transmitting part 36 preferably are selected so as to result in a realistic simulation of burning fuel. In one embodiment, the body 28 preferably is primarily a white translucent material (i.e., with paint or any other suitable coloring agent applied on the exterior surface 34, as described above), and the light produced by the fuel light source 32 is any suitable shade of the colors red, yellow or orange or any combination thereof, depending on the burning fuel which the simulated fuel bed 20 is intended to resemble. The term reddish, as used herein, refers to any suitable color or combination or arrangement of colors used in the simulated fuel bed 20 to simulate colors of burning or glowing embers in a natural fire, and/or flames in a natural fire.
Also, the body 28 preferably includes one or more cracks or apertures 44 through which light from the fuel light source 32 is directly observable. The intensity of light from glowing embers in different locations in a natural fire varies. Accordingly, because the light from the fuel light sources 32 which is directly observable is brighter than the light from the sources 32 transmitted through the light-transmitting portions 36, the cracks or apertures 44 provide a realistic simulation due to the variation in intensity of the light from the light source 32 which the cracks or apertures 44 provide, i.e., as compared to the light from the fuel light sources 32 transmitted through the light-transmitting parts 36. In addition to cracks or apertures 44 which may be intentionally formed in the body 28 upon its creation (i.e., in accordance with a predetermined pattern), other cracks or apertures may be formed in the body 28, i.e., other than pursuant to a predetermined pattern. Such cracks or apertures may be formed when the body 28 is created, or they may be formed later, e.g., the simulated fuel elements 22 may crack after an extended period of time. For this reason also, it is preferable that the fuel light sources 32 provide reddish light.
However, it will be understood that other arrangements are possible. For example, in an alternative embodiment, the body material of the light-producing simulated fuel element 26 is colored reddish, and in this case, the light produced by the fuel light source 32 preferably is substantially white, i.e., uncolored.
Preferably, the simulated combustible fuel elements 22 are formed in a silicone rubber mold (
In order to create the silicone rubber mold (step 1000,
Where the fuel which is to be simulated is coal, the same procedure is used to create the simulated fuel elements 22, with sample pieces of coal.
Preferably, the body 28 of the light-producing simulated fuel element 26 is formed so that it includes the cavity 30 therein. As noted above, it is preferred that, once solidified, the body 28 is at least partially translucent. In the alternative, the body 28 of the light-producing simulated fuel element 26 may be made without the cavity 30 formed therein. However, in this case, the cavity 30 is subsequently formed in the body 28 by any other suitable means, e.g., drilling.
As described above, it will be understood that the simulated fuel element 22 which are not light-producing elements 26 may not include the cavity 30. Preferably, the exteriors of the simulated elements 22 which are not light-producing are substantially the same as the exteriors of the light-producing simulated fuel elements 26.
Preferably, when the body 28 of the light-producing fuel element 26 is formed, the body represents the entire log. However, in order to permit the light source subassembly 33 to be inserted into the cavity 30 where the cavity 30 was formed during the creation of the body 28, an aperture 50 preferably is formed in the body 28 which is in communication with the cavity 30. The aperture 50 may be formed in any suitable manner, such as, for example, by drilling.
Preferably, the light assembly 33 (
As shown in
Preferably, the simulated fuel bed 20 also includes a controller 64 (
In another embodiment, the controller 64 causes the light from the fuel light source 32 to pulsate systematically, and/or in a predetermined pattern. Preferably, the predetermined pattern in which the light from the fuel light source 32 pulsates is determined in relation to images of flames 66 which are provided in the simulated fireplace 56, to simulate flames emanating from the simulated fuel bed 20 (
The controller 64 preferably includes one or more modules 68, including a memory storage means 70 and a user interface 72. The controller 64 can include, for example, firmware which provides options selectable by a user (not shown) via the user interface 72. In addition, or in the alternative, direct (manual) control by the user via the user interface 72 may be permitted. Alternatively, the controller 64 could be programmed to cause variations in the light produced by the LEDs 32 in accordance with a predetermined sequence in a program stored in memory 70. The controller 64 also preferably includes any suitable means for causing light created by the light source 32 to vary as required, e.g., a triac to vary voltage as required, as is known in the art.
As shown in
Also, the controller 64 is programmable to modulate the fuel light source 32 in accordance with one or more selected characteristics of the images of flames 66. For instance, in one embodiment, the controller 64 preferably is programmed so that, upon the speed of rotation of an element in the flame image sub-assembly 74 increasing (i.e., to result in images of flames 66 which flicker faster), the controller 64 causes the rate of pulsation of light from the light source 32 to increase proportionately, but also realistically. It is preferred that increases in pulsation not correspond directly (i.e., linearly) to increases in the rate at which the flame effect flickers.
In another embodiment, the simulated fireplace 56 also includes one or more toplights 75 positioned above the simulated fuel bed 20 (
In another embodiment, the controller 64 is programmable to modulate the toplight 75, for example, in accordance with one or more selected characteristics of the images of flames 66.
As described above, the LEDs 32 can be constructed so as to emit light having different colors. Preferably, LEDs 32 which produce different colors are arranged relative to each other in an element 26, and also in a plurality of elements 26, and modulated by the controller 64 to produce pulsating light respectively, together or separately as the case may be, to provide a realistic glowing ember effect through the light-transmitting part 36. Each of the light sources 32 is adapted to pulsate independently in accordance with signals received from the controller 64, if so desired.
The arrangements of the LEDs 32 relative to each other preferably takes into account LEDs inside the same light-producing simulated fuel element 26. In addition, however, the positioning of LEDs 32 producing light with various colors should also take into account the LEDs 32 in all of the light-producing fuel elements 26 in the pile 25, and in particular, LEDs 32 positioned in adjacent elements 26.
In one embodiment, the simulated fuel bed 20 preferably includes a simulated ember bed 76 (
As can also be seen in
In use, the user selects the desired control option using the user interface 72, to control (via the controller 64) light provided by the fuel light sources 32. Preferably, the controller 64 is adapted to control light sources 32 in a number of light-producing simulated solid combustible fuel elements 26 in the simulated fuel bed 20. In one embodiment, the light-producing elements 26 are positioned substantially near the bottom of the pile 25 (
Additional embodiments of the invention are shown in
As can be seen in
As shown in
In the flame image subassembly 74 shown in
Another embodiment of a flame simulating assembly 274 is shown in
In another embodiment, the flame simulating assembly 384 includes a controller 364 which is adapted to effect a predetermined sequence of changes in the images of flames 366. Preferably, the controller causes a flame image subassembly 374 to provide the predetermined sequence of changes (
For the purposes hereof, intensity of light produced by a light source refers to the amount of light per unit of area or volume. For example, intensity may be measured in units of lumens or candelas per square meter.
Preferably, the predetermined sequence of changes are in accordance with software stored in a memory storage means 370 accessible by the controller 364. The predetermined sequence of changes may proceed at a preselected rate. Also, the preselected rate may be determined by the controller 364, if preferred. In another embodiment, the controller 364 is controllable by the user via a user interface 372 and the predetermined sequence of changes proceeds at a rate determined by the user via the user interface 372.
In the preferred embodiment, the flame simulating assembly 384 also includes at least one fuel light source 332 positioned in one or more light producing simulating fuel elements 326 in the simulated fuel bed 320, to simulate glowing embers.
Preferably, the controller 364 is operable in a start-up mode, in which a gradual increase in intensity of light providing the images of flames 366 takes place. In one embodiment, upon commencement of the predetermined sequence of changes, the intensity of the light providing the images of flames 366 is relatively low, so that the predetermined sequence of changes (i.e., a gradual increase in intensity of light providing the images of flames 366) resembles a natural fire during commencement thereof. In an alternative embodiment, prior to commencement of the predetermined sequence of changes, the images of flames 366 are substantially nonexistent.
Similarly, in an alternative embodiment, the light providing the images of flames 366 is gradually decreased in intensity by the controller 364. The decrease preferably proceeds until the images of flames 366 are substantially nonexistent, i.e., the gradually decreasing images of flames 366 resemble a natural fire which is gradually dying.
In another alternative embodiment, the flame simulating assembly 484 includes a heater subassembly 493 (
The flame simulating assembly 484 preferably also includes a thermostat 496 for controlling the heater subassembly 493. The thermostat 496 is adapted to operate the heater subassembly 493 in the basic heat mode upon ambient temperature differing from a preselected temperature by more than a predetermined difference. Also, the thermostat is adapted to operate the heater subassembly 493 in the reduced heat mode upon ambient temperature differing from the preselected temperature by less than the predetermined difference.
As shown in
Preferably, the occupancy sensor 603 is adapted to send an activation signal to the controller 564 upon detection of motion. The activation signal is one of the occupancy-related signals which are transmitted from the remote control device to the receiver 609 which is operatively connected to the controller 564, as described above. It is also preferred that the occupancy sensor 603 is also adapted to send a de-activation signal to the controller upon a sensor failing to detect motion during a predetermined time period (
Preferably, the remote control device additionally includes an ambient light sensor 611. The ambient light sensor 611 is for sensing ambient light intensity. For the purposes hereof, ambient light intensity refers to the amount of ambient light per unit of area or volume. The ambient light in question is the light generally around, or in the vicinity of, the simulated fireplace and/or the user.
Preferably, the ambient light sensor 611 provides substantially automatic adjustment of the light provided by one or more light sources in a simulated fireplace 556 to provide an improved simulation effect. The light sources thus adjusted preferably include any or all of the toplight 75, the flame light source 88, and the fuel light source 32. In one embodiment, the ambient light sensor 611 is adapted to provide a first signal which is transmitted to the controller 564 upon the ambient light intensity being greater than a predetermined first ambient light intensity. The ambient light sensor 611 is also preferably adapted to provide a second signal which is transmitted to the controller 564 upon the ambient light intensity being less than a predetermined second ambient light intensity. The controller 564 is adapted to increase the intensity of the light provided by the light source (i.e., being any one or all of the toplight 75, the flame light source 88, and the fuel light source 32) upon receipt of the first signal, up to a predetermined maximum. Also, the controller 564 is adapted to decrease the intensity of the light provided by the light source upon receipt of the second signal, to a predetermined minimum.
In an alternative embodiment, the ambient light sensor 611 is adapted to cause the controller 564 to effect a preselected change in the intensity of the light supplied by the light source upon the ambient light intensity differing from the intensity of light from the light source to a predetermined extent. For example, the light source could be adjusted so that light provided by the light source has an intensity which is substantially proportional to the ambient light intensity. As noted above, the light source could be all or any one of the toplight 75, the flame light source 88, and the fuel light source 32.
As can be seen in
It is also preferred that the thermostat 496 (preferably, in the form of a thermistor) is positioned in the remote control device 598, behind apertures 617 provided to enable ambient air to reach the thermistor. The advantage of having the thermistor positioned in the remote control device 598 is that temperature will be adjusted in accordance with the temperature of the ambient air generally in the vicinity of the user.
The display screen 613 is for displaying data regarding input signals and, preferably, output signals. Input from the user is receivable via the display screen, in one embodiment.
In an alternative embodiment, the receiver 609 is a transceiver, and information (data) is transmittable to the remote control device 598 from the controller 564 through the receiver 609. In this case, the transmitter 607 is also a transceiver.
It will be appreciated by those skilled in the art that the invention can take many forms, and that such forms are within the scope of the invention as claimed. Therefore, the spirit and scope of the appended claims should not be limited to the descriptions of the preferred versions contained herein.
This is a continuation of co-pending application Ser. No. 13/732,878, filed on Jan. 2, 2013, which is a continuation of application Ser. No. 13/306,480 filed on Nov. 29, 2011, now U.S. Pat. No. 8,361,367, which is a divisional application of application Ser. No. 11/252,596, filed Oct. 19, 2005, which claims the benefit of U.S. Provisional Patent Application No. 60/628,109, filed Nov. 17, 2004, and a continuation of aforesaid U.S. patent application Ser. No. 11/252,596, filed Oct. 19, 2005, which claims the benefit of U.S. Provisional Patent Application No. 60/628,109, filed Nov. 17, 2004, each of which prior application is incorporated herein by reference.
Number | Date | Country | |
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60628109 | Nov 2004 | US | |
60628109 | Nov 2004 | US |
Number | Date | Country | |
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Parent | 11252596 | Oct 2005 | US |
Child | 13306480 | US |
Number | Date | Country | |
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Parent | 13732878 | Jan 2013 | US |
Child | 13911711 | US | |
Parent | 13306480 | Nov 2011 | US |
Child | 13732878 | US | |
Parent | 11252596 | Oct 2005 | US |
Child | 11252596 | US |