Electronic lighting device and method for manufacturing same

Abstract
An electronic lighting device and a method for manufacturing the same are disclosed. The electronic lighting device may comprise a core, which may comprises an enclosure, a light-emitting element, a flame sheet and a swing mechanism. The flame sheet is movably supported or suspended on the enclosure, and may comprise an upper sheet which is of a flame-like shape. The upper sheet is configured to expose above the top of the enclosure. The light-emitting element may be installed on the enclosure. A light outgoing direction of the light-emitting element may be intersected with the surface of the upper sheet so that the light of the light-emitting element is projected on the surface of the upper sheet. The swing mechanism is disposed beneath the flame sheet and can apply a force on the flame sheet to actuate the flame sheet to sway or swing. By the present application, a visual experience of true fire can be achieved and an interestedness and appreciation can be improved.
Description
TECHNICAL FIELD

The present application relates to an electronic lighting device.


BACKGROUND

In our daily life, various electronic lighting devices are widely applied to toys, home decoration products and gifts. For instance, candles, kerosene lamps and so on are originally used as lamps for illumination. However, people are no longer concerned about the illumination function of candles and kerosene lamps as electrical light sources are used commonly. The candles and kerosene lamps are thus used for interestedness or appreciation rather than illumination. Recently, various electronic lighting devices, such as electronic flashing candles, electronic candles, simulated candles and simulated kerosene lamps and the like, emerge as required. Lighting parts of such electronic lighting devices try to simulate lighting patterns of candles or kerosene lamps, namely, to simulate flashing and flickering flames of candles or kerosene lamps. However, compared with the flames of candles or kerosene lamps, the lighting parts of the electronic lighting devices are quite different and have not enough realistic visual effect.


For instance, a type of electronic candle is disclosed in a Chinese application No. 200520035772.5, titled “Electronic Simulated Flashing Candle”. The electronic candle comprises a flame shell shaped as true flames, LED elements disposed in the flame shell, and a control circuit. The control circuit controls lighting sequences of the LED elements such that the LED elements flash on and off. As a result, a visual experience of winkling and jumping light is given by the electronic candle and thus the interestedness or appreciation of the electronic candle is enhanced.


SUMMARY

An objective of the present application is to provide an electronic lighting device for simulating true fire and a method for manufacturing the same to simulate true fire with an enhanced visual experience.


According to an aspect of the present application, an electronic lighting device comprising a core is provided. The core may comprise: an enclosure provided with a through hole on a top thereof; a flame sheet movably supported or suspended on the enclosure, wherein the flame sheet comprises an upper sheet which is of a flame-like shape, and the upper sheet is configured to expose above the top of the enclosure through the through hole of the enclosure; a light-emitting element installed on a sidewall of the enclosure such that an outgoing direction of a light from the light-emitting element is inclined upward and passing through the through hole of the enclosure, wherein the outgoing direction is intersected with a surface of the upper sheet, so that the light from the light-emitting element is projected on the surface of the upper sheet; and a swing mechanism disposed beneath the flame sheet, wherein the swing mechanism is configured to apply a force on the flame sheet to actuate the flame sheet to sway or swing.


According to another aspect of the present application, a method for manufacturing an electronic lighting device is provided. The method may comprises: suspending a flame sheet on an enclosure, wherein the flame sheet comprises a upper sheet which is of a flame-like shape and exposed above a top of the enclosure; installing a light-emitting element on a sidewall of the enclosure such that an outgoing direction of a light from the light-emitting element is inclined upward and passing through a through hole of the enclosure to be intersected with a surface of the upper sheet, so that the light from the light-emitting element is projected on the surface of the upper sheet; and disposing a swing mechanism beneath the flame sheet, wherein the swing mechanism is configured to apply a force on the flame sheet to actuate the flame sheet to sway or swing.


In the present application, by the cooperation of the flame sheet with the light projected thereon, the flame sheet may sway or swing under the action of its own gravity and the swing mechanism. The light given off by the light-emitting element is projected on the flame sheet and looks like a true flickering flame so that the flame simulated by the lighting device is closer to the wick flame of the traditional lighting device such as a candle, a kerosene lamp and the like. In the case where the device according to the present application is applied to electronic products, such as electronic candles or simulated kerosene lamps and the like, it further improves the visual experience of the electronic products and provides the electronic products with enhanced interestedness and appreciation.


In some embodiments, since the swing mechanism in the device of the present application uses a magnetic mechanism, the flame sheet maintains to sway randomly or disorderly in use, so that the light projected on the flame sheet keeps flickering and looks like a true flame.


In some embodiments, in the device of the present application, the light given off by the light-emitting element has an emission angle within a specific range, so that the light is assured to be projected on the flame sheet, and thus the visual effect of simulating true fire is assured.


In some embodiments, the shell is simulated in to a traditional candle in shape, so that the device of the present application is closer to the traditional candle in visual effect.





BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 is a schematic view showing an appearance of an electronic candle according to a first embodiment of the present application;



FIG. 2 is a cross-sectional view showing a structure of the electronic candle according to the first embodiment of the present application;



FIG. 3 is an exposed view schematically showing the structure of the electronic candle according to the first embodiment of the present application;



FIG. 4 is a schematic view showing a structure of a core of the electronic candle according to the first embodiment of the present application;



FIG. 5 is an exposed view schematically showing the structure of the core of the electronic candle according to the first embodiment of the present application;



FIG. 6 is a schematic view showing a structure of a flame sheet of the electronic candle according to the first embodiment of the present application;



FIG. 7 is a schematic diagram showing a circuit part of the electronic candle according to the first embodiment of the present application;



FIG. 8 is a cross-sectional view showing a structure of an electronic candle according to a second embodiment of the present application;



FIG. 9 is an exposed view schematically showing a structure of a core of an electronic candle according to a third embodiment of the present application;



FIG. 10 is a schematic diagram of a circuit part of the electronic candle according to the third embodiment of the present application;



FIG. 11 is an exposed view schematically showing a structure of a core of an electronic candle according to a fourth embodiment of the present application;



FIG. 12 is an exposed view schematically showing a structure of a core of an electronic candle according to a fifth embodiment of the present application;



FIG. 13 is an exposed view schematically showing a structure of a core of an electronic candle according to a sixth embodiment of the present application; and



FIG. 14 is a schematic view showing a structure of a flame sheet of the electronic candle according to the seventh embodiment of the present application.





DETAILED DESCRIPTION

Hereinafter, a detailed description of the present application will be given by specific embodiments and with reference to the appended drawings.


Embodiment 1

In particular, the present application provides an electronic candle, with reference to FIGS. 1 to 5. FIG. 1 is a schematic view showing the appearance of the electronic candle according to the first embodiment. The electronic candle, which is shaped as a true candle, comprises: a shell 1, a casing 2 sleeved within the shell 1, a core 3 and a base 4 installed within the casing 2. The casing 2 is provided with a through hole at the top-center. A flame sheet is arranged in the through hole. A portion of the flame sheet which protrudes outsides through the through hole is shaped as a flame of a burning candle. The light emitted from a light-emitting element which is disposed on the core 3 is projected, at an angle, onto the portion of the flame sheet which protrudes outsides through the through hole. Further, the flame sheet may sway freely under the action of natural winds or a swing mechanism arranged within the core 3. In this way, the flame simulated by the electronic candle, when viewed from a distance, flickers like that of a true candle, as if it is a perfectly realistic flame, and thus can be scarcely distinguished from the true one.


As shown in FIGS. 2 to 5, the core 3 comprises an enclosure, a flame sheet 31, a LED light 33 and a swing mechanism. The enclosure comprises left and right caps 38 and 38′ having symmetrical shapes with each other. A cylindrical cavity is formed when the left and right caps 38 and 38′ are arranged to engage with each other. Each of the left and right caps 38 and 38′ has a semicircular notch on the top, such that a circular opening 380 is formed on the top of the cavity by the semicircular notches when the left and right caps 38 and 38′ are arranged to engage with each other. The left and right caps 38 and 38′ have respective left and right notches 381 and 381′ on the upper portions of their sidewalls. The left and right notches 381 and 381′ are concaved inwardly and inclined at a certain angle with respect to the sidewalls in such a way that an installation location for the LED light, which inclines toward and communicates with the opening 380, is formed by the left and right notches 381 and 381′ when the left and right caps 38 and 38′ are arranged to engage with each other. The LED light 33 is then installed at this installation location such that an angle between a longitudinal central axis of the LED light 33 and that of the cavity is about 35 degree. Moreover, the LED light 33 may be a LED element emitting concentrated light with a relatively narrow emission angle (7-10 degree). Further, combined with an appropriate area of an upper sheet 311 of the flame sheet 31, it can be assured that light emitted from the LED light 33 is maintained to be projected onto the surface of the flame sheet 31. As a result, light beams are increased in brightness and form an elliptical light spot on the surface of the flame sheet 31, so that the flame sheet 31 looks more like a flame of a true candle in shape.


With reference to FIG. 6, the flame sheet 31 is of sheet type, and provided with a through hole 310 at the middle part. The flame sheet 31 is divided, by the through hole 310, into a upper sheet 311 shaped as a flame of a burning candle and a lower sheet 312. The lower sheet 312 has a counterweight slightly heavier than that of the upper sheet 311, so that the flame sheet 31 is vertically suspended in a free state (under the action of its own gravity without any external force). A supporting rod 32 passes through the through hole 310 and spans across the opening 380 of the core's cavity. The supporting rod 32 is V-shaped and depressed slightly at the middle so that the flame sheet 31 is suspended steadily at the lowest point of the supporting rod 32 since the lower sheet 312 has a counterweight slightly heavier than that of the upper sheet 311. It is easier for the flame sheet suspended vertically in a free state (under the action of its own gravity without any external force) to sway randomly under the action of an external force. In this way, the supporting rod 32 spanning across the opening 380 of the core's cavity may enable the flame sheet 31 to sway randomly under the action of an external force, such as natural winds. However, the supporting rod 32 may maintain a relatively fixed position relationship between the upper sheet 311 of the flame sheet 31 and the light outgoing direction of the LED light 33 such that the light from the LED light 33 can be projected onto the surface of the upper sheet 311 of the flame sheet 31. Since the flame sheet 31 is manufactured by a semitransparent material, a portion of the light can emerge from the back of the flame sheet 31 when the light is projected onto the flame sheet 31. In order to improve the effect of simulating a true candle's flame, a wire is embedded in the flame sheet 31 at the bottom of the upper sheet 311 to simulate a candlewick. In the case where the wire is irradiated by the light of the LED light 33 projected on the upper sheet 311, as if there is a candlewick within a flame, such that the flame sheet 31 is more like the flame of a true burning candle in visual effect. In addition, since the supporting rod 32 is irradiated by the LED light 33, a shadow of the supporting rod 32 is formed on the surface of the upper sheet of the flame sheet 31 and may also look like the candlewick.


The tubular shell 1 is manufactured by a transparent or semitransparent material, such as PVC. The shell 1 comprises a tubular sidewall and a diaphragm plate 10 intersected with the tubular sidewall. A through hole is provided at the middle of the diaphragm plate 10, from which the upper sheet 311 of the flame sheet 31 protrudes outsides. In order to simulate irregular wax melting when a candle is burning, a portion of the shell's sidewall above the diaphragm plate 10 is formed to have an irregular end face. For example, the sidewall may be lower in front and higher behind. The surfaces of the shell's sidewall and the diaphragm plate 10 are coated with candle wax, such that the electronic candle looks more like a true candle. The upper sheet 311 of the flame sheet 31 protrudes outsides through the through hole of the diaphragm plate 10, with its front surface (the surface projected by the light) facing a lower point of the sidewall and its back surface obscured by a higher sidewall of the shell. In this way, a user is guided to dispose the electronic candle at a preferable angle to appreciate the “candle light”, that is to say, the electronic candle is viewed from the front surface of the upper sheet 311 of the flame sheet 31 and from the lower point of the sidewall. Accordingly, the effect for simulating a true candle by the electronic candle according to the first embodiment can be improved.


In order to assure the effect of swaying of the flame sheet, the core is provided with a swing mechanism which maintains to act on the flame sheet directly or indirectly with a force such that the flame sheet maintains to sway or swing. As shown in FIGS. 4 and 5, the swing mechanism in the embodiment uses a magnetic mechanism comprising a set of magnets 39, a linkage sheet 35, a linkage rod 34 and a coil 37. The set of magnets 39 comprises a first magnet, a second magnet and a third magnet. The linkage rod 34 is movably threaded through the linkage sheet 35, and arranged to span across the core's cavity. The linkage rod 34 is V-shaped, and depressed slightly at the middle so that the linkage sheet 35 is positioned at the lowest point at the middle of the linkage rod 34. The linkage sheet 35 may be suspended freely in the core's cavity without any external force. The second and third magnets are adhered to or embedded into the upper and lower ends of the linkage sheet 35, respectively. The first magnet is adhered to or embedded into the lower end of the flame sheet 31. A magnetic pole of the first magnet facing the second magnet has a polarity opposite or same to that of a magnetic pole of the second magnet at the upper end of the linkage sheet 35 facing the first magnet, that is to say, they may attract or repel each other. The coil 37 is fastened onto a PCB subboard through a snap ring 36, and disposed beneath the lower end of the linkage sheet 35 so as to be opposite to the third magnet at the lower end of the linkage sheet 35.


The operation principle on the swaying or swinging of the flame sheet 31 is illustrated below. Firstly, an oscillation is output through a control circuit. When powered on, the coil 37 then produces a magnetic field which is opposite to the polarity of the magnet pole of the third magnet at the lower end of the linkage sheet 35 facing the coil so that the coil 37 and the third magnet at the lower end of the linkage sheet 35 repel each other. As a result, the linkage sheet 35 sways toward one side. Moreover, since the second magnet at the upper end of the linkage sheet 35 and the first magnet at the lower end of the flame sheet 31 attract or repel each other, the flame sheet 31 sways. When the coil 37 is powered off, the flame sheet 31 freely falls down under the action of its own gravity, and continues to sway in an opposite direction under an inertia potential energy until the coil 37 is powered on again. Then the inertial motion of the flame sheet 31 is changed by the magnetic force of the coil 37 via the linkage sheet 35, and a next sway cycle begins.


As shown in FIGS. 3 and 4, the base 4 comprises a battery tray 41, a battery cover 42, a PCB mainboard 43 and pieces of battery shrapnel 44. The pieces of battery shrapnel 44 are installed on the battery tray 41 to form a battery chamber for accommodating batteries 45. The PCB mainboard 43 is installed on the battery tray 41 and arranged at one side of the battery chamber. The control circuit and a power switch are arranged on the PCB mainboard 43. The PCB mainboard 43 is electrically connected, via wires, with the LED light 33, the PCB subboard installed with the coil 37, and the pieces of batter shrapnel. The battery cover 42 is arranged at the bottom of the battery tray 41 and can be removed to enable the displacement of the batteries in the battery chamber. The core 3 is installed on the base 4, wherein the PCB subboard installed with the coil 37 is electrically connected with the PCB mainboard 43. The circumference of the battery stray 41 and the bottom of the casing 2 may be snapped together, or may be threaded with each other through a bolt. The casing 2 is a hollow cylinder, the external diameter of which is equal to or slightly larger than the internal diameter of the shell 1 so as to be tightly fitted into the shell 1. The casing 2 is provided with a through hole on the top, which is used for mating with the core 3. When the core 3 is received within the casing 2, the upper sheet 311 of the flame sheet 31 is exposed out of the casing 2 through the casing's through hole.



FIG. 7 is a circuit schematic diagram of the embodiment. The operation principle of the electronic candle according to the embodiment is illustrated below with reference to FIG. 7.


In the power source part, the energy provided by the batteries is transferred, via a switch SW1, to an input pin of a boost converter U1, then into a boost circuit consisting of components such as a fifth capacitor C5, a second inductor L2, the boost converter U1, a third capacitor C3 and an eighth resistor R8. A stable voltage of 3.3V is then output from a fifth pin of the boost converter U1 to be supplied to a microprocessor U2, a LED light LED1 (expressed as the LED light 33 in the structure described above, using a warm white light similar to true fire in color) and a coil L1.


In the case where the switch SW1 is closed such that the circuit is powered by the power source part, the microprocessor U2 starts to work upon receiving a 3.3-volt voltage. When a voltage at a fifth pin (PB1) of the microprocessor U2 is above 1.82-volt, the microprocessor U2 controls an eighth pin (PWM/PCO) to output a square wave pulse of 40 ms on and 630 off. A MOS transistor Q1 and the coil L1 are controlled through the square wave pulse to oscillate so as to produce a magnetic field. In the case that the magnetic field produced by the magnet at the lower end of the linkage sheet 35 is the same as that produced by the coil (both are N poles or S poles), the coil repels the magnet. The magnet then brings the linkage sheet 35 to sway toward left or right. Further, in the case that the magnetic field produced by the magnet at the upper end of the linkage sheet 35 is opposite to that produced by the magnet at the lower end of the flame sheet 31, the linkage 35 drives the flame sheet 31 to sway toward right or left since the linkage sheet 35 and the flame sheet 31 are arranged to be a distance from each other. Meanwhile, the microprocessor U2 controls a third pin (PB3) to output a high level so as to supply about a 0.6-volt voltage to the base of a triode Q2 via a resistor R10. Once the triode Q2 is turned on, the LED light LED1 is lighted. Then the light is projected onto the flame sheet at an angle of 35 degree. Under the action of the coil, the flame sheet, as viewed from a distance, is very similar to that of a burning candle. The optimum viewing distance is farther than 1 m from the electronic candle, the viewing angle being smaller than 120 degree.


The work of circuit in the case where the switch is switched such that the circuit is controlled by a timer and a first pin (PA3) of the microprocessor U2 is at a low level is illustrated below. On one hand, the microprocessor U2 controls the eighth pin (PWM/PCO) to output a square wave pulse of 40 ins on and 630 ins off after halting for 500 ms. The MOS transistor Q1 and the coil are controlled through the square wave pulse to oscillate so as to produce a magnetic field. In the case that the magnetic field produced by the magnet at the lower end of the linkage sheet 35 is the same as that produced by the coil (both are N poles or S poles), the coil repels the magnet. The magnet then brings the linkage sheet 35 to sway toward left or right. Further, in the case that the magnet at the upper end of the linkage sheet 35 produce a magnetic field which is opposite to that produced by the magnet at the lower end of the flame sheet 31, the linkage sheet 35 drives the flame sheet 31 to sway toward right or left since the linkage sheet 35 and the flame sheet 31 are arranged to be a distance from each other. Meanwhile, the microprocessor U2 controls the third pin PB3 to output a high level after halting for 500 ins (that is to say, the LED light LED1 blinks for once) so as to apply about a 0.6-volt voltage to the base of the triode Q2 via the tenth resistor R10. Once the triode Q2 is turned on, the LED light LED1 is lighted. On the other hand, an oscillation circuit, which consists of a crystal oscillator X1, a first capacitor C1 and a second capacitor C2, provides standard clock information to the microprocessor U2. The timer of the microprocessor U2 starts timing upon the LED light LED1 blinks. After 5 hours, the microprocessor U2 will controls the eighth pin (PWM/PCO) and the third pin (PB3) to output a low level, so that the flame sheet stops swaying and the LED light LED1 goes out. After next 19 hours, the microprocessor U2 controls the eighth pin (PWM/PCO) to output a square wave of 40 ins on and 630 ins off, and the PB3 to output a high level, so that the flame sheet starts to sway and the LED light LED1 is lighted. In view of the above, the total time of a cycle is 24 hours. The circuit can circularly work in this way, until the batteries exhaust or the switch is switched into other states.


When the battery voltage is below 1.62 volt, the LED light will go out no matter that the switch is switched such that the circuit is powered by the power source part or controlled by a timer. Meanwhile, the flame sheet stops swaying, and the control circuit goes to a sleep state. The circuit restores to work until the batteries are replaced with new ones.


When the switch is opened, the boost converter U1 and the microprocessor U2 stop working since they are not powered by the batteries. As a result, the LED light will go out, meanwhile, the flame sheet 31 stops swaying.


Embodiment 2

With reference to FIG. 8, the swing mechanism according to the first embodiment is simplified according to the second embodiment. The linkage sheet 35 and components attached thereto, such as the linkage sheet 34 and two magnets at both ends thereof, are omitted. Thus, the coil 37 is disposed adjacent to the lower end of the flame sheet 31. In the case that the coil 37 produces a magnetic field which is opposite to that produced by the magnet at the lower end of the flame sheet 31, the coil 37 and the flame sheet 31 repel each other so as to keep the flame sheet 31 swaying.


Embodiment 3

In this embodiment, the swing mechanism in the core 3 according to the first embodiment is replaced with a swing mechanism according the third embodiment. With reference to FIG. 9, the swing mechanism according to the third embodiment comprises a hanging rope 301, a swing piece 302, a rotary block 303, a motor fixed block 304 and a motor 305. The upper end of the hanging rope 301 is hanged to the lower end of the flame sheet 31, and the lower end of the hanging rope 301 is connected with the swing piece 302. The motor 305 is fixed within the core's enclosure by the motor fixed block 304. The rotary block 303 is fixed to the output shaft of the motor 305. In a natural state (under the action of gravity, without the action of any external force), the swing piece 302 is, depending on its own gravity, hanged to the hanging rope 301 and then the lower end of the swing piece 302 contacts with the rotary block 303. When the motor 305 is actuated, the rotary block 303 collides with the swing piece 302 continually. As a result, the swing piece 302 sways continually, which makes the flame sheet 31 sway disorderly.


With reference to FIG. 10, a circuit schematic diagram according to the embodiment is shown. The operation of the swing mechanism is performed through controlling the rotation of the motor M1 with the eighth pin of the microprocessor U2.


Embodiment 4

In the fourth embodiment, the swing mechanism in the core 3 according to the first embodiment is replaced with a swing mechanism described below. With reference to FIG. 11, the swing mechanism according to the forth embodiment comprises a linkage rod 401, a rotary block 402, a motor fixed block 403 and a motor 404. The middle part of the flame sheet 31 is provided with a slot, in which the upper end of the linkage rod 401 is stuck. The bottom end of the linkage rod 401 contacts with the outer wall of the rotary block 402. The rotary block 402 has an irregular height, and is provide with a pan-like cavity at the middle part. Moreover, the sidewall of the pan-like cavity is provided with a tab 4021. The lower end of the flame sheet 31 is stretched into the pan-like cavity. In a natural state, the tab 4021 contacts with the lower end of the flame sheet 31. The motor 404 is fixed within the enclosure of the core by the motor fixed block 403. The rotary block 402 is fixedly connected to an output shaft of the motor 404. When the motor 404 is actuated and thus the rotary block 402 is forced to rotate, the outer wall of the rotary block 402 will continually collides with the bottom end of the linkage rod 401. As a result, the tab 4021 will continually (or intermittently) collides with the lower end of the flame sheet 31, which makes the flame sheet 31 sway or swing disorderly.


Embodiment 5

In the fifth embodiment, the swing mechanism in the core 3 according to the first embodiment is replaced with a swing mechanism described below. The swing mechanism according to the fifth embodiment comprises a connecting piece 501, a rotary block 502, a motor fixed block 503 and a motor 504. The lower end of the flame sheet 31 is provided with a snap-on piece 313, which can be snapped into a receiving piece 5010 of the connecting piece 501. The connecting piece 501 is L-shaped. An end of the connecting piece 501 far away from the receiving piece 5010 is provided with a snap-on piece 5011, which can be snapped into a receiving piece 5020 on the rotary block 502. The motor 504 is fixed within the enclosure of the core by the motor fixed block 503. The rotary block 502 is fixedly connected with an output shaft of the motor 504, When the motor 504 is actuated, the rotary block 502 brings the connecting piece 501 to rotate. The connecting piece 501 in turn brings the flame sheet 31 to sway.


Embodiment 6

In the sixth embodiment, the swing mechanism in the core 3 according to the first embodiment is replaced with a fan mechanism described below. With reference to FIG. 13, a fan is fixed within the enclosure of the core at the bottom of the cavity of the core. The fan comprises a wind wheel 601, a motor fixed block 602 and a motor 603. The air outlet direction of the wind wheel 601 is upward. The lower end of the flame sheet 31 is folded at an angle so as to form a baffle 314 which has a surface facing the air outlet direction of wind wheel 601. When the fan is activated, the surface of the baffle 314 of the flame sheet 31 is oriented to be upwind such that the flame sheet 31 continually sways under the action of the wind force,


Embodiment 7

As shown in FIG. 14, the electronic candle according to the seventh embodiment is the same as that of the first embodiment, except for the upper sheet of the flame sheet. The upper sheet according to the seventh embodiment is slightly curved, which is concaved from one side. Flanks 3110 are provided at both sides of the concaved portion. The flanks 3110 and the concaved portion together form a depression onto which the light of the light-emitting element is projected. When the light of the light-emitting element is projected on the depression, a light spot is formed on the projected surface that is recessed with a certain depth rather than flat or curved. It seems that the depression is full of light. Further, when the flame sheet sways or swings disorderly, the light spot simulating a flame produces a stereovision effect.


In view of the above embodiments, all of the electronic candles can be powered by rechargeable batteries. In addition, a charge control circuit may be arranged on the PCB mainboard of the base, such that the electronic candle of the application is rechargeable using a Plug-and-socket charger or a charge seat.


The present application is further described in detail with reference to above specific embodiments, however, may be carried out by other embodiments than those set forth herein. Those skilled in the art will appreciate that all simple deduces or replacements can also be made without departing from the conception of the application, and are deemed to be embraced in the scope of the present application defined by the appended claims.

Claims
  • 1. An electronic lighting device comprising: an enclosure provided with a through hole on an upper surface;a flame component shaped in appearance to substantially resemble a shape of a flame when viewed from at least one perspective, the flame component supported to be exposed above the upper surface of the enclosure through the through hole of the enclosure;at least one light-emitting element contained entirely within an interior of the enclosure and positioned such that an outgoing direction of a light from the light-emitting element is projected from within the interior of the enclosure, through the through hole of the upper surface of the enclosure, and onto at least one surface of the first portion of the flame component, thereby illuminating the flame component from a light source external to the flame component;wherein the at least one light-emitting element comprises one or more LEDs;wherein the enclosure comprises at least two enclosure elements operably configured to connect together to form the enclosure;wherein at least one of the enclosure elements comprises a cradle on its sidewall forming an installation location for one or more of the at least one light-emitting element, wherein the installation location is operably configured to allow the at least one light-emitting element to emit light at a direction towards the through hole;an electrically-powered driving mechanism, disposed opposite an end of the enclosure from the through hole; anda base coupled to the enclosure and below the enclosure comprising a battery chamber structured to contain one or more batteries;wherein the battery chamber further includes a door on a bottom surface;control circuitry;wherein the battery chamber includes connectors electrically connected to the control circuitry, the control circuitry electrically connected to the electrically-powered drive mechanism and the at least one light-emitting element;wherein the control circuitry is installed adjacent to the battery chamber;wherein the control circuitry includes one or more printed circuit boards;wherein the control circuitry includes a timer to discontinue power after a predetermined amount of time.
Priority Claims (1)
Number Date Country Kind
2010 1 0211402 Jun 2010 CN national
CROSS REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of U.S. patent application Ser. No. 15/901,130, filed Feb. 21, 2018, which is a continuation of patent application Ser. No. 15/187,640, filed Jun. 20, 2016, which was a continuation of Ser. No. 14/927,213, filed Oct. 29, 2015; which was a continuation in part of Ser. No. 14/588,507, filed Jan. 2, 2015, which was a continuation of Ser. No. 14/161,143, filed Jan. 22, 2014, which was a continuation of Ser. No. 13/325,754, filed Dec. 14, 2011 which is a continuation-in-part of International PCT Patent Application No. PCT/CN2011/076449, filed Jun. 27, 2011, which claims priority to Chinese Patent Application No. 201010211402.8, filed Jun. 28, 2010, each of which is hereby incorporated by reference in its entirety.

US Referenced Citations (214)
Number Name Date Kind
782156 Meeker Feb 1905 A
817772 Helmer Apr 1906 A
1507371 Goodridge Aug 1924 A
1842167 Hall Jan 1932 A
1955042 Work Apr 1934 A
D102561 Lamb Dec 1936 S
2435811 Waters Feb 1948 A
2932351 Bried Jun 1958 A
2976450 Benoliel Mar 1961 A
2984032 Cornell May 1961 A
3166863 Gray Jan 1965 A
3233093 Gerlat Feb 1966 A
3373274 Kott Mar 1968 A
3384774 English May 1968 A
3425157 Hartsock Feb 1969 A
3479561 Janning Nov 1969 A
3514660 Kopelman May 1970 A
3603013 Gardiner Sep 1971 A
3639749 Beckman Feb 1972 A
3681588 Lee Aug 1972 A
3814973 Thouret et al. Jun 1974 A
3890085 Andeweg Jun 1975 A
4026544 Plambeck et al. May 1977 A
4067111 Truitt Jan 1978 A
4187532 Naffier Feb 1980 A
4328534 Abe May 1982 A
4477249 Ruzek et al. Oct 1984 A
4550363 Sandell Oct 1985 A
4551794 Sandell Nov 1985 A
4617614 Lederer Oct 1986 A
4728871 Andrews Mar 1988 A
4764853 Thomas Aug 1988 A
4777571 Morgan Oct 1988 A
4866580 Blackerby Sep 1989 A
4965707 Butterfield Oct 1990 A
5072208 Christensen Dec 1991 A
5097180 Ignon et al. Mar 1992 A
5152602 Boschetto Oct 1992 A
5381325 Messana Jan 1995 A
5550452 Shirai Aug 1996 A
5582478 Ambrosino Dec 1996 A
5707282 Clements et al. Jan 1998 A
5924784 Chliwnyj et al. Jul 1999 A
5936521 Blackman Aug 1999 A
6198229 McCloud Mar 2001 B1
6241362 Morrison Jun 2001 B1
6257755 Sevelle Jul 2001 B1
6302555 Bristow Oct 2001 B1
6312137 Hsieh Nov 2001 B1
6454425 Lin Sep 2002 B1
6461011 Harrison Oct 2002 B1
6491516 Tal et al. Dec 2002 B1
6511219 Sevelle Jan 2003 B2
D486924 Skradski et al. Feb 2004 S
6688752 Moore Feb 2004 B2
6712493 Tell et al. Mar 2004 B2
6757487 Martin et al. Jun 2004 B2
6781270 Long Aug 2004 B2
6953401 Starr Oct 2005 B2
6955440 Niskanen Oct 2005 B2
6966665 Limburg et al. Nov 2005 B2
7029146 Kitchen Apr 2006 B2
7066637 Nozawa Jun 2006 B2
7080472 Schroeter et al. Jul 2006 B2
7083315 Hansler et al. Aug 2006 B2
7093949 Hart et al. Aug 2006 B2
7111421 Corry et al. Sep 2006 B2
7118243 McCavit et al. Oct 2006 B2
7125142 Wainwright Oct 2006 B2
7159994 Schnuckle et al. Jan 2007 B2
D545458 Jensen Jun 2007 S
7261455 Schnuckle et al. Aug 2007 B2
7300179 LaDuke et al. Nov 2007 B1
7305783 Mix et al. Dec 2007 B2
D567993 Shiu Apr 2008 S
7360935 Jensen et al. Apr 2008 B2
7410269 Harrity Aug 2008 B2
D576317 Jensen Sep 2008 S
D589176 Huang et al. Mar 2009 S
D599491 Luo Sep 2009 S
7633232 Wong Dec 2009 B2
7686471 Reichow Mar 2010 B2
RE41628 Barbeau Sep 2010 E
7824627 Michaels et al. Nov 2010 B2
7828462 Jensen et al. Nov 2010 B2
7837355 Schnuckle Nov 2010 B2
8070319 Schnuckle et al. Dec 2011 B2
8081872 Wang Dec 2011 B2
8132936 Patton et al. Mar 2012 B2
8210708 Negron Jul 2012 B2
8235558 Lauer Aug 2012 B1
8256935 Cullimore et al. Sep 2012 B1
8342712 Patton et al. Jan 2013 B2
8454190 Negron Jun 2013 B2
8534869 Patton et al. Sep 2013 B2
8550660 Patton et al. Oct 2013 B2
8646946 Schnuckle et al. Feb 2014 B2
8696166 Patton et al. Apr 2014 B2
8721118 Patton May 2014 B2
8727569 Schnuckle et al. May 2014 B2
8789986 Li Jul 2014 B2
8894261 Chen Nov 2014 B2
8926137 Li Jan 2015 B2
8998461 Gutstein et al. Apr 2015 B2
9033553 Li May 2015 B2
9052078 Sheng Jun 2015 B2
D740460 Thompson et al. Oct 2015 S
D743096 Patton et al. Nov 2015 S
D748322 Patton et al. Jan 2016 S
D748843 Thompson et al. Feb 2016 S
D752276 Thompson et al. Mar 2016 S
9322523 Patton et al. Apr 2016 B2
9335014 Li May 2016 B2
9360181 Li Jun 2016 B2
9366402 Li Jun 2016 B2
9371972 Li Jun 2016 B2
9371973 Li Jun 2016 B2
9447938 Li Sep 2016 B2
9512971 Li Dec 2016 B2
9541247 Patton Jan 2017 B2
D779707 Thompson et al. Feb 2017 S
9572236 Patton Feb 2017 B2
D781488 Patton Mar 2017 S
9591729 Patton Mar 2017 B2
9605824 Li Mar 2017 B1
9625112 Li Apr 2017 B2
10060585 Li Aug 2018 B2
20010033488 Chliwnyj et al. Oct 2001 A1
20020080601 Meltzer Jun 2002 A1
20030041491 Mix Mar 2003 A1
20030053305 Lin Mar 2003 A1
20030072154 Moore Apr 2003 A1
20040114351 Stokes et al. Jun 2004 A1
20040165374 Robinson Aug 2004 A1
20040223326 Wainwright Nov 2004 A1
20050007779 Nozawa Jan 2005 A1
20050097792 Naden May 2005 A1
20050169812 Helf Aug 2005 A1
20050196716 Haab Sep 2005 A1
20050225984 Theobald Oct 2005 A1
20050254248 Lederer Nov 2005 A1
20050285538 Jaworski et al. Dec 2005 A1
20060034079 Schnuckle et al. Feb 2006 A1
20060034100 Schnuckle et al. Feb 2006 A1
20060101681 Hess et al. May 2006 A1
20060120080 Sipinski et al. Jun 2006 A1
20060146544 Leung Jul 2006 A1
20060192503 Trombetta Aug 2006 A1
20070002560 Gutstein et al. Jan 2007 A1
20070053174 Lin Mar 2007 A1
20070127249 Medley et al. Jun 2007 A1
20070154857 Cho Jul 2007 A1
20070159422 Blandino et al. Jul 2007 A1
20070223217 Hsu Sep 2007 A1
20070236947 Jensen et al. Oct 2007 A1
20080074875 Jensen et al. Mar 2008 A1
20080112154 Reichow May 2008 A1
20080129226 DeWitt et al. Jun 2008 A1
20080130266 DeWitt et al. Jun 2008 A1
20080151563 Chen Jun 2008 A1
20080151571 Tang Jun 2008 A1
20090059596 Lederer Mar 2009 A1
20090135586 Yang May 2009 A1
20100001662 Nelkin Jan 2010 A1
20100001682 Dickson et al. Jan 2010 A1
20100079999 Schnuckle Apr 2010 A1
20100134022 Gutstein et al. Jun 2010 A1
20100207538 Browder Aug 2010 A1
20110000666 Couto Jan 2011 A1
20110019422 Schnuckle Jan 2011 A1
20110110073 Schnuckle et al. May 2011 A1
20110127914 Patton Jun 2011 A1
20110195787 Wells Aug 2011 A1
20110204828 Moody et al. Aug 2011 A1
20110317403 Fournier et al. Dec 2011 A1
20120049765 Lu Mar 2012 A1
20120093491 Browder Apr 2012 A1
20120134157 Li May 2012 A1
20130050985 Kwok et al. Feb 2013 A1
20130163249 Miura Jun 2013 A1
20130223043 Ray Aug 2013 A1
20130265748 Negron Oct 2013 A1
20140035483 Becker Feb 2014 A1
20140140042 Schreiber May 2014 A1
20140211499 Fong Jul 2014 A1
20140218903 Sheng Aug 2014 A1
20140254148 Fournier Sep 2014 A1
20140268652 Li Sep 2014 A1
20140268704 Yang Sep 2014 A1
20140274212 Zurek et al. Sep 2014 A1
20140286024 Li Sep 2014 A1
20140313694 Patton Oct 2014 A1
20140362592 Lee Dec 2014 A1
20150008845 Kim Jan 2015 A1
20150036348 Dong Feb 2015 A1
20150070874 Beesley Mar 2015 A1
20150109786 Li Apr 2015 A1
20150124442 Ding May 2015 A1
20150233538 Sheng Aug 2015 A1
20150292698 Li Oct 2015 A1
20150308643 Huang Oct 2015 A1
20150369431 Li Dec 2015 A1
20150369432 Li Dec 2015 A1
20150373815 Patton Dec 2015 A1
20160040844 Patton Feb 2016 A1
20160047517 Li Feb 2016 A1
20160057829 Li Feb 2016 A1
20160109082 Li Apr 2016 A1
20160109083 Li Apr 2016 A1
20160163630 Kummerl Jun 2016 A1
20160186947 Li Jun 2016 A1
20160258584 Li Sep 2016 A1
20160290580 Li Oct 2016 A1
20170067606 Li Mar 2017 A1
Foreign Referenced Citations (83)
Number Date Country
1030823 Feb 1989 CN
2483103 Mar 2002 CN
2551859 May 2003 CN
2562059 Jul 2003 CN
1530142 Sep 2004 CN
1646177 Jul 2005 CN
2854329 Jan 2007 CN
2888274 Apr 2007 CN
2924266 Jul 2007 CN
200940808 Aug 2007 CN
201011621 Jan 2008 CN
201059432 May 2008 CN
201093300 Jul 2008 CN
201103952 Aug 2008 CN
201159425 Dec 2008 CN
101408284 Apr 2009 CN
201235095 May 2009 CN
201418887 Mar 2010 CN
201533921 Jul 2010 CN
101865413 Oct 2010 CN
201643048 Nov 2010 CN
102147095 Aug 2011 CN
102563510 Jul 2012 CN
102734740 Oct 2012 CN
102748589 Oct 2012 CN
202708962 Jan 2013 CN
202791780 Mar 2013 CN
203131550 Aug 2013 CN
103322500 Sep 2013 CN
20329818 Nov 2013 CN
203273669 Nov 2013 CN
203273670 Nov 2013 CN
203431703 Feb 2014 CN
203442498 Feb 2014 CN
203517611 Apr 2014 CN
203571618 Apr 2014 CN
104048246 Sep 2014 CN
104089241 Oct 2014 CN
203940346 Nov 2014 CN
204268356 Apr 2015 CN
1489617 May 1969 DE
212011100014 Apr 2012 DE
102012206988 Oct 2013 DE
202014100821 Apr 2014 DE
202013012047 Apr 2015 DE
202015000490 Apr 2015 DE
202015102274 Jun 2015 DE
0138786 Apr 1985 EP
0855189 Jul 1998 EP
1639291 Mar 2006 EP
1838110 Sep 2007 EP
2587127 May 2013 EP
499745 Jan 1939 GB
2230335 Oct 1990 GB
2267746 Dec 1993 GB
2323159 Sep 1998 GB
2379731 Mar 2003 GB
2385413 Aug 2003 GB
2443926 May 2008 GB
2455598 Jun 2009 GB
2527626 Dec 2015 GB
H0652709 Feb 1994 JP
H1057464 Mar 1998 JP
2000284730 Oct 2000 JP
2008180755 Aug 2008 JP
101174246 Aug 2012 KR
WO-1982002756 Aug 1982 WO
WO-1985003561 Aug 1985 WO
WO-1987004506 Jul 1987 WO
WO-1996025624 Aug 1996 WO
WO-2001092780 Dec 2001 WO
WO-2003011349 Feb 2003 WO
WO-2006020839 Feb 2006 WO
WO2007002560 Jan 2007 WO
WO-2008092753 Aug 2008 WO
WO-2010009575 Jan 2010 WO
WO-2012000418 Jan 2012 WO
WO2012099718 Jul 2012 WO
WO2012162538 Nov 2012 WO
WO-2013020263 Feb 2013 WO
WO2013020439 Feb 2013 WO
WO2014139483 Sep 2014 WO
WO2016000517 Jan 2016 WO
Non-Patent Literature Citations (81)
Entry
U.S. Appl. No. 15/411,869, filed Jan. 20, 2017, Li.
U.S. Appl. No. 15/413,305, filed Jan. 23, 2017, Li.
U.S. Appl. No. 15/150,057, filed May 9, 2016, Li.
U.S. Appl. No. 15/322,237, filed Nov. 18, 2014, Li.
U.S. Appl. No. 15/418,451, filed Jan. 27, 2017, Li.
U.S. Appl. No. 15/441,143, filed Feb. 23, 2017, Li.
U.S. Appl. No. 15/451,351, filed Mar. 6, 2017, Li.
U.S. Appl. No. 15/368,168, filed Dec. 2, 2016, Li.
U.S. Appl. No. 15/451,361, filed Mar. 6, 2017, Li.
Non-Final Office Action for U.S. Appl. No. 15/197,354, dated Jan. 19, 2017, 36 pages.
Notice of Allowance for U.S. Appl. No. 15/137,951 dated Feb. 28, 2017, 10 pages.
Non-Final Office Action for U.S. Appl. No. 15/368,168, dated Mar. 13, 2017, 36 pages.
Translated Office Action issued by the German patent and Trade Mark Office dated Mar. 16, 2017 for Application No. 102016008825.7, 8 pages.
Non-Final Office Action for U.S. Appl. No. 15/355,408, dated Feb. 8, 2017, 26 pages.
Notice of Allowance for U.S. Appl. No. 14/672,819, dated Jan. 27, 2017, 14 pages.
Translated Office Action issued by the German patent and Trade Mark Office dated Feb. 16, 2017 for Application No. 102016008226.7, 6 pages.
Translated Office Action issued by the German patent and Trade Mark Office dated Mar. 2, 2017 for Application No. 102016009125.8, 5 pages.
MiPow Playbulb Candle, Android, http://www.mipow.de/smart-home/29/mipow-playbulb-candle, archived on http://www.archive.org on May 14, 2016 [accessed Mar. 2, 2017].
CHIP: Progimax Candle, http://beste-apss.chip.de/android/app/kostenloses-candle-kerzen-app-fuer-den-androiden.com.progimax.candle.free/ , archived on http://www.archive.org on Dec. 30, 2013 [accessed on Mar. 2, 2017].
Notice of Allowance for U.S. Appl. No. 15/158,508 dated Sep. 21, 2016, 8 pages.
Notice of Allowance for U.S. Appl. No. 15/061,648, dated Sep. 23, 2016, 9 pages.
Non-Final Office Action for U.S. Appl. No. 15/137,951, dated Oct. 24, 2016, 28 pages.
UK Combined Search and Examination Report for GB1613387.8, dated Sep. 9, 2016, 10 pages.
UK Combined Search and Examination Report for GB1613393.6, dated Sep. 9, 2016, 10 pages.
Canadian Examination and Search Report for CA2936224, dated Sep. 30, 2016, 5 pages.
UK Combined Search and Examination Report for GB1613391.0, dated Sep. 19, 2016, 9 pages.
Notice of Allowance for U.S. Appl. No. 14/449,865 dated Nov. 16, 2016, 15 pages.
Notice of Allowance for U.S. Appl. No. 15/145,739 dated Nov. 17, 2016, 11 pages.
Notice of Allowance for U.S. Appl. No. 15/187,618 dated Nov. 30, 2016, 12 pages.
Canadian Examination and Search Report for CA2936225, dated Sep. 29, 2016, 5 pages.
Non-Final Office Action for U.S. Appl. No. 15/371,103, dated Jan. 25, 2017, 45 pages.
Notice of Allowance for Canadian Patent Application No. 2,930,065, dated Feb. 9, 2017 from the Canadian Intellectual Property Office.
Canadian Examination Report for CA2930099, dated Jan. 5, 2017 from the Canadian Intellectual Property Office, 3 pages.
Translated Office Action issued by the German patent and Trade Mark Office dated Dec. 19, 2016 for Application No. 102016008225.9, 5 pages.
Notice of Allowance for U.S. Appl. No. 15/207,411 dated Jan. 20, 2017, 23 pages.
Notice of Allowance for Canadian Patent Application No. 2,936,225, dated Jan. 16, 2017 from the Canadian Intellectual Property Office.
Notice of Allowance for U.S. Appl. No. 15/371,103 dated Apr. 12, 2017, 10 pages.
U.S. Appl. No. 15/132,548, filed Apr. 19, 2016, Li.
U.S. Appl. No. 15/145,739, filed May 3, 2016, Li.
U.S. Appl. No. 15/197,354, filed Jun. 29, 2016, Li.
U.S. Appl. No. 15/137,951, filed Apr. 25, 2016, Li.
U.S. Appl. No. 61/101,611 to Schnuckle, filed Sep. 30, 2008.
U.S. Appl. No. 61/293,516 to Patton, filed Jan. 8, 2010.
International Search Report and Written Opinion for PCT Application No. PCT/CN/2014/073557 dated Jul. 2, 2014.
International Search Report for PCT Application No. PCT/US2009/054401 dated Oct. 26, 2009.
EP Search Report for European Patent Application No. 12185984.7 dated Dec. 14, 2012.
Engineer's Handbook (Epoxy definition), http://engineershandbook.com/Materials/epoxy.htm, Jul. 18, 2013.
Nagashima, H. et al., “Introduction to Chaos, Physics and Mathematics of Chaotic Phenomena,” Institute of Physics Publishing, 1999.
Definition of “Electromagnet” in the Encarta World English Dictionary, Aug. 1999.
Lab M3: The Physical Pendulum, Physics 1140—Experimental Physics, Course Laboratory Instructions, 2000.
Non-Final Office Action for U.S. Appl. No. 12/273,337 dated Jun. 17, 2011, 16 pages.
Notice of Allowance for U.S. Appl. No. 12/273,337 dated Mar. 26, 2012, 8 pages.
Final Office Action for U.S. Appl. No. 12/273,337 dated Jan. 18, 2012, 17 pages.
Non-Final Office Action for U.S. Appl. No. 13/526,067 dated Oct. 22, 2012, 23 pages.
Notice of Allowance for U.S. Appl. No. 13/526,067 dated Feb. 6, 2013, 8 pages.
Non-Final Office Action for U.S. Appl. No. 13/908,571 dated Sep. 6, 2013, 11 pages.
Final Office Action for U.S. Appl. No. 13/908,571 dated Mar. 18, 2014, 20 pages.
Final Office Action for U.S. Appl. No. 13/098,571 dated Sep. 30, 2014, 18 pages.
Notice of Allowance for U.S. Appl. No. 13/325,754 dated Jun. 18, 2014, 10 pages.
Non-Final Office Action for U.S. Appl. No. 13/325,754 dated Dec. 30, 2013, 14 pages.
Notice of Allowance for U.S. Appl. No. 14/161,143, dated Nov. 13, 2014, 18 pages.
Non-Final Office Action for U.S. Appl. No. 14/558,507 dated Sep. 20, 2015, 21 pages.
Notice of Allowance for U.S. Appl. No. 14/588,507 dated Dec. 4, 2015, 11 pages.
Non-Final Office Action for U.S. Appl. No. 14/558,507 dated Mar. 17, 2016, 18 pages.
Notice of Allowance for U.S. Appl. No. 14/588,507 dated May 3, 2016, 7 pages.
Non-Final Office Action for U.S. Appl. No. 14/925,893 dated Feb. 25, 2016, 37 pages.
Final Office Action for U.S. Appl. No. 14/925,893, dated Apr. 26, 2016, 29 pages.
Non-Final Office Action for U.S. Appl. No. 14/925,893 dated May 16, 2016, 13 pages.
Non-Final Office Action for U.S. Appl. No. 14/925,899 dated Jan. 5, 2016, 21 pages.
Non-Final Office Action for U.S. Appl. No. 14/925,899 dated Apr. 14, 2016, 25 pages.
Non-Final Office Action for U.S. Appl. No. 14/927,213 dated Feb. 25, 2016, 33 pages.
Notice of Allowance for U.S. Appl. No. 14/927,213 dated May 11, 2016, 12 pages.
Non-Final Office Action for U.S. Appl. No. 14/925,899 dated May 25, 2016, 18 pages.
Supplementary Search Report and Opinion for EP 14764844, dated Jul. 28, 2016, 12 pages.
Non-Final Office Action for U.S. Appl. No. 15/145,739 dated Jul. 27, 2016, 22 pages.
Notice of Allowance for U.S. Appl. No. 14/925,893, dated Jul. 20, 2016, 9 pages.
Notice of Allowance for U.S. Appl. No. 14/925,899, dated Aug. 3, 2016, 9 pages.
Non-Final Office Action for U.S. Appl. No. 15/061,648 dated Jul. 12, 2016, 47 pages.
Non-Final Office Action for U.S. Appl. No. 14/449,865 dated Feb. 3, 2016, 9 pages.
International Search Report for PCT/CN2014/091362, dated Apr. 3, 2015, 2 pages.
Non-Final Office Action for U.S. Appl. No. 15/187,618, dated Aug. 18, 2016, 13 pages.
Continuations (4)
Number Date Country
Parent 15901130 Feb 2018 US
Child 16442211 US
Parent 15187640 Jun 2016 US
Child 15901130 US
Parent 14161143 Jan 2014 US
Child 14588507 US
Parent 13325754 Dec 2011 US
Child 14161143 US
Continuation in Parts (3)
Number Date Country
Parent 14927213 Oct 2015 US
Child 15187640 US
Parent 14588507 Jan 2015 US
Child 14927213 US
Parent PCT/CN2011/076449 Jun 2011 US
Child 13325754 US