Abstract:
A tamper proof label and closure construction includes a coded label section with a passage for reclosing a bag and further includes a closure section which may be wrapped around gathered package material and sealed. Removal of the sealed closure section will indicate tampering or intentional opening of the closed, sealed bag.

Description:
BACKGROUND OF THE INVENTION 
     In a principal aspect, the present invention relates to a tamper proof package label and closure construction comprised of a plastic plate or tag capable of being heat sealed or ultrasonically sealed about gathered packaging material and further capable of providing label indicia coded to the product or features of the product in the package secure by the closure. 
     Many products, and in particular food products, are packaged in flexible bags or containers. Those containers are accessible through the open top of the flexible bag and the bag is typically maintained in a closed condition by means of a twist-tie or a plastic locking tag. Such means for closing or maintaining a package in a closed condition are useful. However, the bag may be easily opened and then closed without detection rendering the contents subject to tampering. 
     An alternative to utilizing such devices is to provide adhesive to close the bag or a tie having a locking feature. Examples of ties include devices such as shown in U.S. Pat. No. 712,765 and No. 5,544,391. Other options include the use of a clip mechanism. Examples of clip mechanisms are disclosed in U.S. Pat. No. 4,878,702 and No. 4,370,778. 
     Thus, there has remained a need for providing a simple, yet effective closure construction or assembly which provides tamper proof characteristics, that is, a closure construction wherein the opening of the closure mechanism is characterized by removal of the closure from the bag or container thereby indicating that the contents of the bag or container have been accessed. Further, it is desirable to provide a closure construction or assembly wherein the closure device itself may be reused to close the bag or container which has been purposely opened by the party possessing the bag and its contents. In other words, the concept of having a tamper proof construction is desired along with the concept of a construction which can be used over and over to close the bag. 
     Providing a closure mechanism which has such multiple uses and applications is deemed desirable. Additionally, it is desirable to provide a closure construction which may include indicia or information relating to the contents of the container or bag or in some manner, include coding information on the label construction. These desires, among others, inspired the development of the present invention. 
     SUMMARY OF THE INVENTION 
     Briefly, the present invention comprises a tamper proof package label and closure construction which is formed from an elongate flat plastic planar plate member divided generally into two sections. The first section comprises a bag closure section and is integral with the second section which comprises a label section. In the preferred embodiment, the sections are each generally rectangular and are integrally formed with a boundary defining the junction between the sections. The shape of the integral or connected sections should not be considered a limiting feature of the closure construction. 
     The bag closure section is designed to be wrapped around a gathered bag or container and folded over on itself to thereby clamp the gathered container packaging or material in a closed condition with the folded over closure section joined typically by means of ultrasonic welding, adhesive, or heat sealing. Other means of joinder, such as melt processing, may be utilized to join the elongated, folded over bag closure section. The bag closure section further preferably includes a fracture seam which serves to permit severance of the closure section thereby permitting tearing and removal of the closure construction from the bag or container to which it is attached. 
     The bag closure section is also attached to the label section along a boundary or a seam, which is also severable. Thus, the label section may be detached from the closure section. 
     The label section includes a face or area onto which printed indicia, color indicators, or other informational indicia may be printed or incorporated. The label section further includes a guide notch extending inwardly on a side thereof connected via a slit with a shaped passage or opening. In this manner, the label section comprises a plastic, locking tag inasmuch as it may be separated from the bag closure section and used to temporarily close gathered packaging material fitted through the slit and into the shaped passage. Additionally or alternatively, the label section may include a handle or an opening which enables the label section to be hung on a hook, for example. 
     Thus, it is an object of the invention to provide an improved tamper proof package label and closure construction comprised of a generally planar or flat plastic plate member divided into two integral, but separable sections; namely, a bag closure section and an integral label section. 
     It is a further object of the invention to provide a tamper proof closure construction which effectively seals and closes gathered packaging material and which may be removed therefrom along a fragible or fracture seam defined in the closure construction. 
     A further object of the invention is to provide a closure construction which is capable of incorporating indicia, color or other identifying information on a label section. 
     Another object of the invention is to provide a label section for a package closure construction wherein the label section is capable of multiple uses including use as an information carrying portion of the closure construction as well as a bag closure feature for temporarily closing a bag or gathered material once it has been opened. 
     A further object of the invention is to provide an inexpensive yet easily used and highly effective tamper proof package label and closure construction. 
     These and other objects, advantages and features of the invention will be set forth in the detailed description which follows. 
    
    
     BRIEF DESCRIPTION OF THE DRAWING 
     In the detailed description which follows, reference will be made to the drawing comprised of the following figures: 
     FIG. 1 is an isometric view of the tamper proof package label and closure construction of the invention prior to utilization for sealing or closing gathered material, such as the neck of a bag or container; 
     FIG. 2 is an isometric view of the closure construction of FIG. 1 wherein the construction has been fitted about the gathered neck of a container or bag to hold and seal the contents therein; 
     FIG. 3 is an isometric view of the construction of FIG. 2 wherein the bag closure section has been removed from the bag or container and the label section has been placed on the bag or container as a temporary closure device; and 
     FIG. 4 is an isometric view of alternative closure construction. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to the figures, the tamper proof package label and closure construction comprises a flat plastic plate member divided generally into two sections or parts. A first bag closure section  10  has a generally rectangular or elongate shape including a free end  12  and an opposite end defining an intermediate boundary or junction  14  spaced from the free end  12 . The closure construction further includes an integral label section  16  which is also generally rectangular having one side at least, in part, defined by the boundary or seam  14  with closure section  10 , and having an opposite side or margin  18  with a V-shaped notch  20  therein. A seam or slit  22  connects from notch  20  to a passage or opening  24  defined in the label section  16 . The label section  16  further includes connecting sides  26  and  28 . 
     Referring again to the bag closure section  10 , there is provided a fragible seam  30  generally parallel to and intermediate the free end  12  and the boundary or seam  14 . The fragible seam  30  may be made by providing a thinner section in the bag closure section  10  or by means of perforation or other means. The seam  30  is shown generally parallel to the free end  12  and connecting or intermediate boundary seam  14 . However, the seam  30  may have a pattern, for example, a sinusoidal pattern, or some other curved or serrated pattern. Likewise, the boundary seam  14 , or intermediate boundary  14 , is preferably a smooth, straight boundary between the closure section  10  and the label section  16 . Additionally, the intermediate boundary  14  may be defined by perforations or other means similar to the seam  30 . However, the shape of the intermediate boundary  14  and seam  30  should not be considered a limiting feature of the invention. That is, it may be angular, curved, or the like. 
     The closure construction is typically manufactured from a plastic material, for example, a polyvinyl chloride material. The closure construction may be impregnated with various materials to facilitate sanitation, for example biocides or other similar materials. Additionally, odors, flavors or other materials may be impregnated into the closure construction. Also, importantly, the label section  16  of the closure construction typically will include indicia providing information for the shopper, or those who will observe the tag, attached to a package. For example, as depicted in FIG. 3, bar code indicia  40  may be provided. A color code  42  may be provided. Label information  44  printed on one or both sides of the label section  16  may be provided. The entire tag or closure construction may be formed in a single color which correlates with information associated with the product, for example, the month when the product use expires, the day when the product was manufactured, or the day of the week when the product should be removed from a shelf display. In any event, the label section  16  may include the color integrally incorporated therein by holding or fashioning the closure construction from a certain colored plastic material. 
     The bag closure section  10  of the closure construction is tightly wrapped about gathered casing or bag material  50  depicted in FIG.  2 . The free end  12  is thus folded over and fitted against the closure section  10 , and the portion of the closure section  10  adjacent the free end  12  is sealed tightly to the closure section  10 . In this manner, the closure section  10  tightly fits around and holds the gathered bag  50  in a sealed condition. Closure and sealing of section  10  may be effected by means of ultrasonic welding, adhesive, melt processing, or other means for attaching the free end  12  and region adjacent thereto to the closure section  10 . It should be noted that the seam  30 , which is intermediate to the free end  12  and intermediate boundary  14 , may be fractured in order to remove the sealed closure section  10  from the package material  50 . Fracture of the seam  30  such as depicted in FIG. 3 enables removal of the closure construction. Such fracture also provides the tamper proof characteristic of the closure. That is, if the seam  30  is fractured, then an individual inspecting a package sealed by section  10  will realize that the closure construction has been opened and that the contents of the bag may have been compromised. 
     The closure construction further includes a tear-away or fragible intermediate boundary  14  which enables separation of the closure section  10  from the label section  16  as depicted in FIG.  3 . The label section  16  may then be utilized to temporarily close the gathered end  50  of a package by inserting the gathered end  50  through the notch  20 , the slit  22  and into the passage or opening  24 . Because the closure construction is manufactured from a generally, flexible plastic material, such use may be effected. 
     The positioning of the passage  24 , notch  20  and the slit  22 , as well as the shape and configuration thereof, may be varied to accommodate various types of packaging material and the ease of use of the label section  16 . Typically, the closure section  10  will be disposed once the package is opened by tearing along the intermediate boundary  14 . However, the user of the construction need not tear away the closure section  10  but may wish to retain it for later disposal with the label section  18 . 
     The shape of each of the sections  10  and  18  may be varied to accommodate various needs and desires of the users of such closures. For example, the label section  18  may have a circular shape, or polygonal shape other than the rectangular shape depicted. Similarly, the dimensions of the closure section  10  may be varied widely to accommodate various types of packaging. Label sections may have a wider girth or a side-to-side dimension, for example, for larger packages. Consequently, the construction may be significantly varied without departing from the scope of the invention. Essential features of the invention comprise the closure section, a label section, and appropriate materials to permit folding of the closure section and thus flexibility and joinder thereof. The flexibility function of the label section is also desired in order to enable use thereof as a temporary closure device. 
     FIG. 4 depicts some additional alternative features of the invention. Thus, a label section  70  may include a handle member  72  formed integrally for hand carrying. Also, label section  70  may include a passage  74  to permit the tag and thus the associated bag and product to be hung on a hook  76 . Thus, the invention may be used by a pharmacy, for example, to package prescriptions and retained at the pharmacy site on hook  76  by hanging passage  74 . Thereafter, the customer can open the package and resend as necessary with the closure opening  80 . 
     Other variations in labeling and openings are within the scope of the invention. The invention, therefore, is to be limited only by the following claims and equivalents thereof.