System and method to automatically extinguish a candle
A safety device, for example for candles, is disclosed. The safety device includes a cover, a support structure, a support device, a controller, an electrical timing device, an input device, an output device, and a closing device. The support structure is hingedly coupled to the cover, and configured to be supported by a container. The support device is coupled to the support structure. The controller is coupled to the support device. The electrical timing device is coupled to the support device and the controller. The input device is coupled to the support device and the controller. The output device is coupled to the support device and the controller. The closing device coupled to the support device and the controller.
Latest Candlewatch Company, LLC Patents:
This application claims benefit under 35 U.S.C. 119(e) to U.S. Provisional Application No. 60/742,876, filed Dec. 7, 2005, which is incorporated by reference herein in its entirety.
This application is related to co-owned U.S. Pat. No. 6,494,708 and co-pending, co-owned U.S. application Ser. No. 10/317,202, filed Dec. 2, 2002, which are incorporated by reference herein in their entireties.
BACKGROUND1. Field
This invention is directed towards safety devices for candles. More particularly, the invention relates to a method and apparatus for automatically actuating candle snuffers and extinguishers.
2. Related Art
One of the hottest selling products in today's market are candles. These candles come in all shapes, sizes, colors, scents, and containers. Increasingly, candles are being used to set atmosphere, light rooms, change the smell of a room with fragrances, or the like. Unfortunately, one common feature of all candles is that when left unattended for too long a period of time or disturbed they can cause fires. Recently, there has been a real increase in the frequency, severity, and reporting of fires. The worst cases are when these fires are in apartment houses or social houses since there is an even larger potential for damage to property, and even worse, an increased potential for death.
Manufacturers have recognized this problem and are trying to combat the increasing occurrence of fires caused by candles by producing candles in containers, such as jars or the like. Although this solution has been moderately successful in some ways, there are still fires starting because of unattended or forgotten candles being in these containers or when these candles are disturbed in some fashion. One reason for this is users falsely assumed the candles in containers are safer because of their configuration.
Therefore, a need exists for a safety device for candles in containers that automatically extinguishes a candle in a container after a user selected predetermined duration of time has passed. Further, there is a need for a safety device for candles in containers that can automatically extinguish the candle if the container is disturbed.
BRIEF DESCRIPTION OF THE DRAWINGS/FIGURESThe accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the invention and to enable a person skilled in the pertinent art to make and use the invention.
In the drawings, like reference numbers may indicate identical or functionally similar elements. Additionally, the left-most digit(s) of a reference number may identify the drawing in which the reference number first appears.
DETAILED DESCRIPTIONWhile specific configurations and arrangements are discussed, it should be understood that this is done for illustrative purposes only. A person skilled in the pertinent art will recognize that other configurations and arrangements can be used without departing from the spirit and scope of the present invention. It will be apparent to a person skilled in the pertinent art that this invention can also be employed in a variety of other applications.
This specification discloses one or more embodiments that incorporate the features of this invention. The disclosed embodiment(s) merely exemplify the invention. The scope of the invention is not limited to the disclosed embodiment(s). The invention is defined by the claims appended hereto.
The embodiment(s) described, and references in the specification to “one embodiment”, “an embodiment”, “an example embodiment”, etc., indicate that the embodiment(s) described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is understood that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
Exemplary Mechanical Timer System and Operation
As seen in
It is to be appreciated that the first and second sections 12 and 14, respectively, could be made of similar non-flammable material, such as metal, aluminum, alloy, molded plastic, or the like. Also, the third section 16 can be made of any non-flammable material, such as metal, aluminum, alloy, molted plastic, or the like. Further, the coupler 18 can be coupled to the first through third sections 12-16, respectively, with any known material, such as adhesive material or small screws, bolts, or the like.
With continuing reference to
With further reference to
In one example, an operation of the apparatus 10 with reference to
Once the first section 12 is placed in the second position, the user can ignite the candle 44. During the duration of time on the timing device 34, determined by the scale 38, air can flow into the container 42 through the opening 40 based on the first section 12 being in the second position. Once the duration of time ends, the timing device 34 will return to an OFF position and a tip portion 50 of the timing device 34 interacts with an end portion 52 of the extension 26 forcing the extension 26 upward. This force causes the first section 12 to move in the direction of arrow 54 returning the first section 12 to the first position. Once the first section 12 is in the first position, the lack of air entering the container 42 will extinguish the lighted device 44 in a predetermined amount of time. In one example, the predetermined amount of time is around 5 seconds.
In an alternative embodiment, if during the duration of time a user or someone else disturbs the container or a structure holding the container, e.g., a table or the like, a predetermined amount, the first section 12 will automatically close, which extinguishes the lighted device 44 in the predetermined amount of time.
Therefore, through an exemplary arrangement of the apparatus 10, the candle 44 is automatically extinguished after a user selected predetermined duration of time. Thus, a user or a parent, friend, or relative of the user, can gain increased peace of mind when the user wants to light a candle. Further, the arrangement of apparatus 10 will also automatically extinguish the candle 44 when a predetermined amount of disturbance occurs around the candle 44 as an added measure of safety.
Turing now to
A main difference in the embodiment shown in
It is to be appreciated the container 42 might contain reflective surfaces, or in other alternative embodiments the first section 12 can include reflective surfaces. These reflective surfaces would be utilized to enhance the light produced by the candle 44.
Now with reference to
A main difference between the above embodiments shown in
Another difference between the embodiments in
In operation, a user will set a predetermined duration of time on the timing device 366 after moving the first section 412 from the first position, e.g., closed, to the second position, e.g., opened a predetermined amount. Once the selected predetermined duration of time has elapsed, the timing device 366 is configured to automatically extend the extension 370 until contact is made with the extension 362. The force caused by the contact is enough to initiate movement of the first section 312 to return the first section 312 to the first position. By having the extension 362 extending at a predetermined angle, less force is needed to return the first section 312 to the first position. The other functions as described above for embodiments one and two also are performed by the apparatus 300 in embodiments three and four.
In one embodiment, system 610 can further include a support device 700 and a resilient device 702 coupled to support rod 618. The coupling can be based on support rod 618 passing through an opening in support device 700 and an open area of resilient device 702. It is to be appreciated that other coupling methods and/or devices can also be used. Although coupled, support device 700 and/or resilient device 702 may slide along support rod 618.
In an embodiment, timing device 614 can further include an arm 704 having extensions 706 and 708. Arm 704 passes through an opening 710 in a body 712. A resilient device 714 is coupled between extension 706 and support device 700. A rotating device 716 interacts with extension 708 to move arm 704 in a direction of arrow B when an OFF state of timing device 614 is reached, as described in detail below. Timing device 614 can be secured to apparatus 602 using any known securing devices, such as a screw 718, bolts, adhesive material, or the like. Both resilient devices 702 and 714 are biased to push or pull, respectively, support rod 618 and support device 700 in a direction of arrow A. In the perspective of
In one embodiment, closing portion 604 includes an extension 722 that extends through an opening 724 in attachment device 608. Extension 722 interacts with support device 700, as will be described in detail below.
When a user wishes to light a candle (not shown) in container 612, timing device 614 should be turned ON. After turning ON timing device 614, support rod 618 is pushed by the user to move support rod 618 and support device 700 in a direction of arrow C. In the perspective of
In one example, an event can be when timing device 614 reaches an OFF state. This moves arm 704 in the direction of arrow B causing resilient device 714 to pull support rod 618 and support device 700 in the direction of arrow A. When support device 700 moves in the direction of arrow A, extension 722 becomes unsupported by support device 700. This causes closing portion 604 to move to a closed state, which extinguishes the candle.
In another example, an event can be when any aspect of system 600 is disturbed, as described above. The disturbance causes resilient device 702 to move support rod 618 and support device 700 in the direction of arrow A. Resilient device 714 may also assist resilient device 702 in the movement of support rod 618 and support device 700. Again, when support device 700 moves in the direction of arrow A extension 722 is unsupported by support device 700. This causes closing portion 604 to move to a closed state, which extinguishes the candle.
In another example, a person can manually extinguish the candle by pushing on rod 618 in the direction of arrow C.
Exemplary Electrical Timer System and Operation
Safety device 900 includes a cover 902 hingedly coupled to a support structure 904. Support structure 904 includes openings 906, which receive proximity sensors 908, and a housing 910.
It is to be appreciated that proximity sensors 908 may not be used in all embodiments, based on a desired application of safety device 900, and thus are optional. It is also appreciated that more or less proximity sensors 908 can be used than are shown, based on a desired application of safety device 900. In various examples, proximity sensors 908 can be either acoustic or optical sensors that detect movement proximate the safety device 900. For example, the movement can be from a person or a animal, or other types of moving objects, such as curtains or debris. This movement can trigger closing of cover 902, as discussed in more detail below.
In one example, housing 910 includes an opening 912 for an on/off switch 914, an opening 916 for an up/down switch 918, and an opening 920 for an on/off proximity sensing switch 922 (only needed if proximity sensors 908 are being used in a particular application), and an opening 924 for an output device 926. In various examples, output device 926 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, or the like, which can show a time set/remaining on an associated electrical timing device (not shown) (see timing device 1532 in
In one example, an input device is considered one or more of switches 914, 918, and/or 922.
In the example shown in
In various examples, electrical timer 1532 can be either an analog or digital timer.
In one example, release arm 1536 and actuator 1538 form a closing device.
In one example, a controller (not shown, but see controller 1952 in
In one example, additionally or alternatively, a temperature or thermal sensor 1956 can be coupled to controller 1952. Temperature sensor 1956 can be coupled to or attached to either cover 902, e.g., inside cover 902 facing into container 901, or support structure 904, or in another location. Temperature sensor 1956 is used to measure an ambient temperature inside container 901 or adjacent a flame, which can indicate a flame has grown to a large size or that the flame is conducting a large amount of heat. Either situation can indicate that the flame has become dangerous, and should be extinguished.
An exemplary operation of safety device 900, with reference to
In one example, once the time runs out in electrical timing device 1532, a signal is sent from electrical timing device 1532 to actuator 1538/2038, possibly via controller 1952. When the actuator 1538/238 receives this signal, the actuator 1538/2038 causes release arm 1536 to rotate or arm 2037 and solenoid 2036 to activate to a position in which it no longer supports cover 902. This causes cover 902 to close. Once cover 902 closes, the candle is automatically and quickly extinguished, as is discussed above.
In another example, a motion sensor 1540 is used. If movement of the container 901 or the safety device 900 is detected by motion sensor 1540, a signal is sent to actuator 1538/2038, possibly via controller 1952, to initiate the closing of cover 902, as described above. Thus, cover 902 can be closed regardless of how much time is remaining when movement of container 901 or safety device 900 is detected. The closing of the lid may be automatic if the system detects low battery signal and the lid will not stay open if the same is detected.
In a further example, proximity sensors 908 are used. When proximity sensors 908 are turned on via switch 922, they detect if a person or animal, or the like, is within a certain distance (e.g., up to about 20″) of proximity sensors 908. When this is detected, a signal is sent from proximity sensors 908 to actuator 1538/2038, possibly via controller 1952, to initiate the closing of cover 902, as described above. Thus, cover 902 can be closed regardless of how much time is remaining when something is detected as being too close to the container 901 or safety device 902. When using the motion detectors, the user will have a set time, approx 1 minute from the point when this option is chosen, to light the candle and move out of the range of motion.
In a further example, temperature sensor 1956 is used. Temperature sensor 1956 is used to detect an amount of heat being generated by a flame of a candle in the container 901 and generate a temperature value signal corresponding thereto. The temperature value signal generated by temperature sensor 1956 is received at either controller 1952 or a comparing device (not shown) coupled to controller 1952. The temperature value signal is compared to a threshold value (e.g., a stored threshold value). If the temperature is above the threshold value, a signal is sent to actuator 1538/2038, possibly via controller 1952, to initiate the closing of cover 902, as described above. Thus, cover 902 can be closed regardless of how much time is remaining when the temperature exceeds the threshold value.
CONCLUSIONWhile various embodiments of the present invention have been described above, it should be understood that they have been presented by way of example only, and not limitation. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the invention. Thus, the breadth and scope of the present invention should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.
It is to be appreciated that only the Detailed Description section is meant to be used in interpreting claim limitations, and the Summary and Abstract sections are not to be used when interpreting the claim limitations. The Summary and Abstract sections are merely one or more exemplary embodiments or/examples of the present invention, while the Detailed Description provides additional/alternative embodiments and/or examples.
Claims
1. A safety device, comprising:
- a cover;
- a support structure hingedly coupled to the cover, and configured to be supported by a container;
- a support device coupled to the support structure;
- a controller coupled to the support device;
- an electrical timing device coupled to the support device and the controller;
- an input device coupled to the support device and the controller;
- an output device coupled to the support device and the controller; and
- a closing device coupled to the support device and the controller.
2. The safety device of claim 1, wherein the input device comprises a switching device.
3. The safety device of claim 2, wherein the switching device comprises at least an on/off switch and an up/down switch used to control the electrical timing device.
4. The safety device of claim 1, wherein the output device comprises a display.
5. The safety device of claim 4, wherein the display displays a time associated with the electrical timing device.
6. The safety device of claim 1, further comprising:
- a proximity sensing system coupled to the support structure and the controller.
7. The safety device of claim 6, wherein the input device comprises at least one of an on/off switch, an up/down switch that controls the digital timing device, and a slide switch that controls the proximity sensing system.
8. The safety device of claim 6, wherein the proximity sensing system comprises ultrasonic sensors.
9. The safety device of claim 6, wherein the proximity sensing system comprises optical sensors.
10. The safety device of claim 1, wherein the closing device comprises an actuator and a release arm.
11. The safety device of claim 1, further comprising:
- a motion detector coupled to the support device and the controller.
12. The safety device of claim 11, wherein the motion detector comprises a non-mercury motion switch.
13. The safety device of claim 1, wherein the output device comprises one of a liquid crystal display or a light emitting diode display.
14. The safety device of claim 1, further comprising:
- a proximity sensing system coupled to the support structure and the controller; and
- a motion detector coupled to the support device and the controller.
15. The safety device of claim 1, further comprising:
- a temperature or thermal sensor that detects the temperature associated with the container.
Type: Application
Filed: Dec 6, 2006
Publication Date: Jun 7, 2007
Applicant: Candlewatch Company, LLC (Galloway, OH)
Inventor: John Hart (Galloway, OH)
Application Number: 11/634,153
International Classification: F23N 5/00 (20060101); F23D 3/16 (20060101); F23D 3/02 (20060101);