BACKGROUND OF THE INVENTION This invention relates generally to monitoring a shelf life of a product and, more particularly, to a container configured to monitor the remaining shelf life of a product stored within the container.
The food industry is a large and diverse industry that provides food products to consumers throughout the world. Food safety is an important issue to the food industry. The shelf life of food is a critical factor impacting food safety, consumer acceptability of food and the economics of the food industry. Accordingly, the ability to monitor the shelf life of a food product is critical to the food industry.
The shelf life of food is generally defined as the period of time a food vendor can properly store a food product before selling the food product to the public for consumption. Different types of food may have different shelf lifes. For example, fresh meat may have a shelf life of 30 days when properly stored within a refrigerated area, while fresh fish may have a shelf life of 10 days. In other words, the shelf life of food is a unit of measure that indicates the period of time that the vendor (i.e., a butcher/grocer) can properly store the product before selling it to the public. Because the shelf life of food directly impacts food safety and the economics of the food industry, it is important for a food vendor to be able to monitor the shelf life of food products such that the food products are timely sold. By monitoring the shelf life of its food products, a food vendor is better able to control food safety and reduce food waste.
The food industry, however, lacks a device for easily identifying whether a food product is being sold within its shelf life. For example, at least one known process currently employed in the meat industry for monitoring the age of food includes placing labels on the boxes used for shipping the meat to the vendor wherein the labels include an expiration date printed thereon. However, the labels currently used are not easy to read from a distance and do not show how many days are remaining on the shelf life of a product, but rather only show the date by which the product is to be sold. Accordingly, when using this type of labeling system, a user must be close enough to read the box label and must calculate the remaining life from the date printed on the case. The current labeling system results in loss of worker time and increased food waste.
There are at least some patents that describe processes and/or devices for tracking the age of food. For example, U.S. Pat. No. 5,711,160 issued on Jan. 27, 1998, which is a continuation-in-part of U.S. Pat. No. 5,487,276 issued on Jan. 30, 1996, and which is a continuation-in-part of U.S. Pat. No. 5,335,509 issued on Aug. 9, 1994, to Namisniak et al. describes a food storage tracking system placed on a refrigerator door that includes a rectangular base unit with a magnetic back that has an electronic recording microprocessor, a column of preprinted magnetic tabs identifying foods and lifetime, a column timing display in days, a column of start buttons, a column of stop buttons, and a dry erasable pen in a pen holder.
U.S. Design Pat. No. 401,526 issued on Nov. 24, 1998, and U.S. Design Pat. No. 417,167 issued on Nov. 30, 1999, to Stunder describes an adhesive-backed food freshness indicator disk device having a disk with an index mark and rotatable indices for dates and months.
U.S. Pat. No. 5,243,579 issued on Sep. 7, 1993, to Potthof describes an electronic apparatus for monitoring the remaining storage period of frozen foods that includes a module incorporating an electro-optical display, a control electronics with a memory or data storage, input elements for entering the type of food and remaining storage period, a switch element for initiating data storage, an identification number of the food, and indication of an expired storage period for a food by generating a warning signal.
U.S. Pat. No. 5,892,734 issued on Apr. 6, 1999, to Flores et al. describes a magnetic-backed time-indicating device that includes a clock movement with hour and minute hands mounted on a ferrous clock face by a magnet.
U.S. Pat. No. 4,285,697 issued on Aug. 25, 1981, to Neary describes a food spoilage indicator device that includes a liquid crystal such as a cholesteryl chloride disposed in a carrier of plastic tape, wherein at least one portion of which is semi-permeable to gases generated in food spoilage.
U.S. Design Pat. No. 271,182 issued on Nov. 1, 1983, to Iorio describes an ornamental design of an electronic timer device having an inclined display screen and 12 input buttons on a circular base.
U.S. Design Pat. No. 303,771 issued on Oct. 3, 1989, to Chan describes an ornamental timer device having an oblong shaped body containing a liquid crystal display indicator for hours and minutes, and push-buttons for minutes, seconds, and start/stop.
U.S. Design Pat. No. 125,764 issued on Mar. 11, 1941, to Graesser et al. describes a design for a gauge dial comprising a circular face with numerical indices from zero to 15.
U.S. Design Pat. No. 260,375 issued on Aug. 25, 1981, to Kane et al. describes an ornamental timer device comprising a rectangular body with a timer face indicating a scale from 5 to 55 and a rotatable pointer. Two other switch buttons are present.
U.S. Pat. No. 5,229,981 issued on Jul. 20, 1993, to Maschi describes a digital multi-event timer device for use in childbirth comprising a rectangular module containing an electronic time base for generating clock signals, an electronic counter for generating interval signals, and a liquid crystal display representing time in hours, minutes and seconds in actual time and elapsed time.
U.S. Pat. No. 5,802,015 issued on Sep. 1, 1998, to Rothschild et al. describes a rectangular electronic timing label device for indicating the expiration of a time period attachable to a medicine bottle and the like. The label is attached by either an adhesive, a magnet, a band, hook and loop fasteners, hooks, clips, static cling film, or an electrotet film. The device contains a programming conductor port, a pulse generator, a binary counter, a liquid crystal display, a printed circuit board, and a battery.
U.K. Patent Application No. 2 042 775 A published on Sep. 24, 1980, for Kurosawa describes a stop-watch or chronograph that includes a module containing on its face a thermal printing head and paper, two liquid display screens for displaying lap times and the time of day (clock), and two power switches. On one side five push buttons for starting, stopping are located. A battery and electric drive circuitry are included.
U.K. Patent Application No. 2 145 699 A published on Apr. 3, 1985, for Dearing-Lambert et al. describes a box device for monitoring the use of medicines that includes a lockable container for medicines having a lid controlled by a solenoid which is automatically controlled to unlock when the circuit signals based on a clock activate an audible or visible signal.
U.S. Pat. No. 6,817,192 issued on Nov. 16, 2004, to Ector, Jr. et al. describes a food storage monitoring system device that includes a battery powered digital timer device having an LCD digital readout describing the elapsed days and hours per day, and a reset button to reset the timer. A magnet is permanently attached to the timer device, and removably attached to a ferromagnetic catch having a double sided adhesive tape attached to one face for attaching the catch to a food storage container. A set of devices can be stored on a refrigerator or freezer door. The catch is adhesively attached to a food storage container, and the timer device is magnetically attached to the catch with the timer device started. Upon retrieving the food container and emptying its contents, the timer device and the first magnet portion are returned to the refrigerator or freezer door, and the empty container and the attached catch can be washed in a dishwasher.
None of the above inventions and patents, taken either alone or in combination, describe or teach the present invention as claimed.
BRIEF DESCRIPTION OF THE INVENTION In one embodiment, a system for monitoring a remaining shelf life of a product stored within a container is provided. The system includes a container having a bottom and at least one side extending from the bottom, a timer device coupled to the container, and a display coupled to the timer device. The timer device includes an integrated circuit programmed as a timer, and an output device electrically coupled to the integrated circuit. The display is in communication with the output device for displaying the remaining shelf life of the product stored within the container.
In another embodiment, a method for monitoring a remaining shelf life of a product stored within a container is provided. The container has a bottom and at least one side extending from the bottom. The method includes providing a timer device including an integrated circuit programmed as a timer and an output device electrically coupled to the integrated circuit, attaching the timer device to the container, and coupling a display to the timer device in communication with the output device for displaying the remaining shelf life of the product stored within the container.
In yet another embodiment, a container assembly for monitoring a remaining shelf life of a product stored within the container is provided. The container has a bottom and at least one side extending from the bottom. The assembly includes a timer device coupled to the container, and a display substrate coupled to the timer device. The timer device includes an integrated circuit programmed as a timer and having a shelf life of the product stored within the container, and a plurality of light emitting diodes electrically coupled to the integrated circuit. The display substrate includes a plurality of apertures wherein each of the plurality of apertures is configured to receive one of the light emitting diodes for displaying the remaining shelf life of the product stored within the container.
BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a top view of an example embodiment of an Electronic Date Coder device.
FIG. 2 is a top view of an alternative embodiment of an Electronic Date Coder device.
FIG. 3 is a rear view of the example embodiment of the Electronic Date Coder device shown inFIG. 1.
FIG. 4 is a front view of the example embodiment of the Electronic Date Coder device shown inFIG. 1 attached to a corrugated container.
FIG. 5 is a schematic of an example embodiment of the electronic circuitry included within an Electronic Date Coder device.
FIG. 6 is a flowchart illustrating exemplary processes utilized by an Electronic Date Coder device.
DETAILED DESCRIPTION OF THE INVENTION Exemplary embodiments of the methods and systems that facilitate monitoring a remaining shelf life of a product stored within a container are described below in detail. Specifically, the exemplary embodiments below describe a device sometimes referred to as the “Electronic Date Coder.” The methods and systems include providing a container having a bottom and at least one side extending from the bottom, providing a timer device that includes an integrated circuit programmed as a timer and an output device electrically coupled to the integrated circuit, attaching the timer device to the container, and coupling a display to the timer device in communication with the output device for displaying the remaining shelf life of the product stored within the container. Typically, the Electronic Date Coder device may be used for monitoring the shelf life of food products, but it can also be used for any product that may have a shelf life or any other critical period of time associated therewith that may require monitoring.
More specifically, in the example embodiment, the Electronic Date Coder device will automatically determine the remaining shelf life of a product stored within a container, and will visually signal vendors within a distribution chain of the remaining shelf life of the products stored within the container. Vendors may include any person or party involved in the production, packaging, distribution, or sale of a product. In the example embodiment, the Electronic Date Coder device can signal vendors at distances of up to fifty feet. The Electronic Date Coder device therefore enables users to more efficiently handle products in a distribution chain, for example food products, while also reducing labor costs. Furthermore, the present invention may also reduce product spoilage through more accurate and timely distribution of perishable products.
In the example embodiment, the Electronic Date Coder monitors the remaining shelf life of a product stored within a container. The Electronic Date Coder includes a display substrate which can be adhered to the side of a paperboard, corrugated paper, or plastic container in which a product that is being monitored is stored. The Electronic Date Coder further includes a timer device having an integrated circuit programmed as a timer and an output device coupled to the circuit. The output device may include a plurality of light emitting diodes. In one embodiment, the timer device is positioned within a depressed section of the display substrate. In another embodiment, the display substrate does not include a depressed section but rather is flexible such that the display substrate encases the timer device when the display substrate is adhered to the container.
The timer device is programmed with the shelf life of the product stored within the container, and is programmed with predetermined time intervals that comprise the product's shelf life. Each time interval is associated with one of the light emitting diodes of the output device. A display unit on the front side of the display substrate is divided into sections, each having indicia to indicate the time intervals. Each section further includes an aperture through which one of the light emitting diodes of the output device are received.
In operation, the timer is configured to be activated such that the timer records a start time of when a product is stored within a container. The timer is further programmed to record the time the product is stored within the container from the start time through the shelf life of the product. In other words, the timer device is programmed as a countdown timer, counting down from the time of activation through the shelf life of the associated product. The time the product is stored within the container is divided into time intervals. Each time interval is indicated on the display unit and is associated with one of the light emitting diodes such that during the first time interval (e.g. 30-23 days remaining), the corresponding light emitting diode is illuminated by the timer device. When each subsequent time interval is reached by the timer device, the previously activated light emitting diode is no longer illuminated and the next corresponding light emitting diode is activated to indicate the next time interval on the display unit. This process is repeated until the shelf life expires.
For example, a product may have a shelf life of 30 days. Accordingly, the Electronic Date Coder would be programmed for a shelf life of30 days, and may have five time intervals that total the 30 day shelf life of the product. Likewise, the display unit would have indicia indicating the five time intervals. Each indicia on the display unit is further associated with a light emitting diode that is positioned within an aperture. The light emitting diodes may be covered by colored lamps to further signal the different time intervals of the product shelf life. The colored lamps may include blue, green, orange, yellow, and red. The five time intervals are each associated with a different color. For example, 30 to 23 days remaining in the shelf life may be associated with blue, 22 to 15 days remaining may be associated with green, 14 to 6 days remaining may be associated with orange, 5 to 1 days remaining may be associated with yellow, and 0 days remaining may be associated with red.
When the product is first stored in a container the timer is started and the first diode indicating 30 to 23 days, having a blue lamp, is activated. When the next time interval is recorded by the timer, the diode having a blue lamp is deactivated and the next diode indicating 22 to 15 days, having a green lamp, subsequently becomes activated. As such, when each following time interval is reached, the currently activated diode is no longer illuminated and the next subsequent diode becomes activated until the shelf life expires and the diode indicating 0 days, having a red lamp, is activated. The light emitting diodes are visible for up to fifty feet and allow an operator within a distribution chain to quickly determine the remaining shelf life of a product without having to be close enough to read a box label. In one embodiment, the timer switch can be reset and the timer reused to indicate the shelf life of another product. In an alternative embodiment, the switch cannot be reset because it is tamper proof. In this particular embodiment, the tamper proof switch prevents the timer from being reset so as to prevent the sale a product after its expiration date.
As used herein, an element or step recited in the singular and proceeded with the word “a” or “an” should be understood as not excluding plural said elements or steps, unless such exclusion is explicitly recited. Furthermore, references to “one embodiment” of the present invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features.
The methods and systems are not limited to the specific embodiments described herein. In addition, the components of each apparatus and each method can be practiced independent and separate from the other components and methods described herein. Each component and method also can be used in combination with other time indicators.
FIG. 1 is a top view of an example embodiment of an ElectronicDate Coder device10. In the example embodiment,Electronic Data Coder10 includes adisplay substrate11, at least onelight emitting diode12, abattery14, anintegrated circuit16, andoutput circuitry18. In the example embodiment, integratedcircuit16 includes a microcontroller, andoutput circuitry18 is electrically coupled to at least onelight emitting diode12.
Battery14 is electrically coupled to integratedcircuit16 which is likewise electrically coupled tooutput circuitry18.Battery14, integratedcircuit16, andoutput circuitry18 are coupled to a rear side ofdisplay substrate11.Battery14, integratedcircuit16, andoutput circuitry18 may also be part of a printed circuit board which is then coupled to the rear side ofdisplay substrate11.
In the example embodiment,display substrate11 includes a plurality of apertures (not shown) configured to receive each of thelight emitting diodes12. Accordingly, eachlight emitting diode12 extends through one of the apertures outwardly from a front side ofdisplay substrate11.Light emitting diodes12 are electrically coupled tooutput circuitry18. A user therefore can visually monitor each of thelight emitting diodes12 by looking at the front side ofdisplay substrate11.
When in operation,battery14 provides power to integratedcircuit16. Integratedcircuit16 is programmed as a timer. Integratedcircuit16 is further programmed with a shelf life of a product, and with predetermined time intervals that total the overall shelf life. Integratedcircuit16 communicates a signal indicative of a particular time interval to theoutput circuitry18. The signal received fromintegrated circuit16 illuminates one of thelight emitting diodes12. By observing thelight emitting diodes12 on the front ofdisplay substrate11, an operator can determine the remaining shelf life of a product.
FIG. 2 is a top view of an alternative embodiment of anElectronic Date Coder100. Components inElectronic Date Coder100, identical to components of Electronic Date Coder10 (shown inFIG. 1), are identified inFIG. 2 using the same reference numerals as used inFIG. 1.Electronic Date Coder100 ofFIG. 2 further includes adisplay substrate110 having adepressed section120 and attachment surfaces122. Specifically,display substrate110 includesdepressed section120 and attachment surfaces122 located on a rear side ofdisplay substrate110.Depressed section120 has a width that is less than a width of thedisplay substrate11, but of sufficient width such thatbattery14, integratedcircuit16, andoutput circuitry18 can be retained therein.Depressed section120 further includes a depth such thatbattery14, integratedcircuit16, andoutput circuitry18 can be positioned at least partially withindepressed section120.
Attachment surfaces122 of thedisplay substrate110 are located on the rear side ofdisplay substrate110. Attachment surfaces122 are configured to receive glue, adhesive or other means of attachment for adhering to a container (not shown). The configuration ofdisplay substrate110 enablesElectronic Date Coder100 to be attached substantially flush to a container (not shown) such that the electronic components are housed withindepressed section120 and between the container anddisplay substrate110.Battery14, integratedcircuit16,output circuitry18, andlight emitting diodes12 operate in the same fashion as described inFIG. 1.
FIG. 3 is a rear view of Electronic Date Coder device10 (shown inFIG. 1).Electronic Date Coder10 includesdisplay substrate11,battery14, integratedcircuit16, andoutput circuitry18.Display substrate11 includes arear side150.Battery14, integratedcircuit16, andoutput circuitry18 are all coupled torear side150 ofdisplay substrate11.
In the example embodiment,rear side150 also includes anattachment surface152.Attachment surface152 is configured to receive glue, adhesive or other means of attachment for adheringdisplay substrate11 to a container (not shown). In addition,display substrate11 is flexible such thatdisplay substrate11 encasesbattery14, integratedcircuit16, andoutput circuitry18 whendisplay substrate11 is adhered to the container.
FIG. 4 is a front view ofElectronic Date Coder10 attached to acorrugated container300. ElectronicDate Coder device10 includesdisplay substrate11.Display substrate11 includes afront side302. In the example embodiment,front side302 includesindicia304, ashelf life indicator306, andlight emitting diodes308.Indicia304 further includestime intervals310, and a plurality ofmulti-color sections312.Display substrate11 also includes a plurality ofapertures314, wherein eachaperture314 is configured to receive one of thelight emitting diodes308.
In the example embodiment,time intervals310 include five time intervals each having a separate color associated therewith. Eachtime interval310 includesindicia304 indicating the number of days remaining in the shelf life programmed for the specificElectronic Date Coder10.
For example,Electronic Date Coder10 is programmed for a 30 day shelf life. Thefirst time interval310 includesindicia304 showing 30 to 23 days remaining in the shelf life and is associated with the color blue. Thenext time interval310 includesindicia304 showing 22 to 15 days remaining and is associated with the color green. Thenext time interval310 includesindicia304 showing 14 to 6 days remaining and is associated with the color orange. Thenext time interval310 includesindicia304 showing 5 to 1 days remaining and is associated with the color yellow. Thefinal time interval310 includesindicia304 showing 0 days remaining and is associated with the color red.
In operation, a product having a shelf life of 30 days is stored incontainer300.Electronic Date Coder10 is then started and the first diode indicating 30 to 23 days, having a blue lamp, is activated. When the next time interval is recorded byElectronic Date Coder10, the diode having a blue lamp is deactivated and the next diode indicating 22 to 15 days, having a green lamp, subsequently becomes activated. As such, when each of the following time intervals is reached, the currently activated diode is no longer illuminated and the next subsequent diode becomes activated until the shelf life expires and the diode indicating 0 days, having a red lamp, is activated. The light emitting diodes are visible for up to fifty feet and allow an operator within a distribution chain to quickly determine the remaining shelf life of a product without having to be close enough to read a box label. After use, the Electronic Date Coder can be reset and used to indicate the shelf life of another product.
FIG. 5 is a schematic400 of an example embodiment of the electronic circuitry included within Electronic Date Coder device10 (shown inFIG. 1).Electronic circuit400 includes abattery402, aswitch404, anintegrated circuit408, andoutput circuitry410.Output circuitry410 is connected to light emittingdiodes412.Battery402,switch404, integratedcircuit408,output circuitry410 and light emittingdiodes412 are electrically coupled together.
In the example embodiment,battery402 powers the circuit whenswitch404 is activated. Whenswitch404 is activated, signals are sent through integratedcircuit408.Integrated circuit408 includes eightinputs416 and eightoutputs418. When in operation,battery402 provides power tointegrated circuit408.Integrated circuit408 is programmed as a timer.Integrated circuit408 is further programmed with a shelf life of a product, and with predetermined time intervals that total the overall shelf life.Integrated circuit408 communicates a signal indicative of a particular time interval to theoutput circuitry410. The signal received fromintegrated circuit408 illuminates one of thelight emitting diodes412. By observing thelight emitting diodes412 on the front of the display substrate, an operator can easily see the remaining shelf life of a product.
FIG. 6 is aflowchart500 illustrating exemplary processes utilized by Electronic Date Coder device10 (shown inFIG. 1). In the example embodiment,flowchart500 shows a method for monitoring a remaining shelf life of a product stored within a container usingElectronic Date Coder10. The container has a bottom and at least one side extending from the bottom. The method includes the steps of providing atimer device502, and attaching504 the timer device to the container. The timer device includes an integrated circuit programmed as a timer, and an output device electrically coupled to the integrated circuit. The method further includes coupling adisplay506 to the timer device in communication with the output device for displaying the remaining shelf life of the product stored within the container.
In the example embodiment, providing atimer device502 further includesprogramming508 the timer device to determine the remaining shelf life of a product stored within the container including programming the timer device with a shelf life of the product stored within the container. The method further includes programming the timer device with a plurality of time intervals comprising the shelf life of the product, wherein each of a plurality of light emitting diodes is associated with one of the plurality of the time intervals.
The process then includes determining510, usingElectronic Date Coder10, the shelf life of the product, and displaying512 the remaining shelf life of the product by sending a signal from the Electronic Date Coder to the plurality of light emitting diodes.
Although the methods and systems described herein are described in the context of monitoring the shelf life of food products contained within a package, it is understood that the Electronic Date Coder methods and systems described herein are not limited to food packaging applications, but may be utilized in other non-packaging applications.
The above-described embodiments of an Electronic Date Coder provide a cost-effective and reliable means for indicating the remaining shelf life of a packaged product. More specifically, the Electronic Date Coder will provide value by improving the distribution of commercially packaged food products.
Exemplary embodiments of Electronic Date Coder methods and systems are described above in detail. The Electronic Date Coder assembly components illustrated are not limited to the specific embodiments described herein, but rather, components of each date coding system may be utilized independently and separately from other components described herein.
While the invention has been described in terms of various specific embodiments, those skilled in the art will recognize that the invention can be practiced with modification within the spirit and scope of the claims.