Patent Publication Number: US-2011073514-A1

Title: Display Container for Polyurethane Product

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a display container and, in particular to a display container for a polyurethane product. 
     2. Description of the Related Art 
       FIGS. 9 and 10  show a conventional display container for a polyurethane product  3 . The display container includes a back board  1 , and a receptacle  2  having a cavity  201  for receiving the polyurethane product  3  therein and a circumferential edge  202  extending along a circumference of an opening of the cavity  201  and attached to a surface provided by the back board  1  in order to fix the receptacle  2  to the back board  1 . The opening of the cavity  201  is defined at a distal end thereof. In using the display container to pack the polyurethane product  3 , the polyurethane product  3  is first disposed in the cavity  201  of the receptacle  2 , the receptacle  2  is attached to the back board  1  by an adhesive or a staple(s) or a sealing device thereafter, and therefore, the product would be retained between a wall of the receptacle  2  and the surface of the back board  1 . Moreover, the opening of the cavity  201  is closed by the surface of the back board  1 . Additionally, the back board  1  includes a hanging hole that allows it to be hanged for display defined therethrough. 
     The polyurethane product  3  is liable to heat and oxidation that would gradually deteriorates in its appearance and function. However, such display container is unable to prevent it from oxidization. 
     The present invention is, therefore, intended to obviate or at least alleviate the problems encountered in the prior art. 
     SUMMARY OF THE INVENTION 
     According to the present invention, a display container for a polyurethane product includes a space defining a receiving section, and first edge and second edge enclosing the receiving section. The first edge provides a sealed closure. The second edge defines an opening, and the opening is adapted to be closed by the second edge after the display container is subject to a vacuumizing process to vacuumize the receiving section. When the polyurethane product is to be stored in the display container, the opening allows the polyurethane product to be inserted into the receiving section. Moreover, the polyurethane product is stored in the receiving section in a vacuumized condition and is prevented from deterioration due to oxidization. 
     Other objects, advantages, and new features of the present invention will become apparent from the following detailed description of the invention when considered in conjunction with the accompanied drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a display container for a polyurethane product in accordance with the first embodiment of the present invention, with the polyurethane product disposed in a center of a receiving section of the display container. 
         FIG. 2  shows a vacuumizing device can incorporate with the display container of the present invention, with the display container including an opening that allows insertion of the vacuumizing device into the display container. 
         FIG. 3  shows the display container after subject to a vacuumization process. 
         FIG. 4  is an extended view of  FIG. 3  and shows the displayer container including a complete enclosed sealed edge. 
         FIG. 5  shows a second embodiment of the present invention, with the second embodiment including a plurality of display containers detachably engaged together in a row. 
         FIG. 6  shows one display container of the second embodiment of the present invention. 
         FIG. 7  shows a third embodiment of the present invention, with the third embodiment including a plurality of display containers detachably engaged together in a column. 
         FIG. 8  shows one display container of the third embodiment of the present invention. 
         FIG. 9  shows a conventional display container for a polyurethane product. 
         FIG. 10  is an exploded perspective view of the conventional display container shown in  FIG. 9 . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       FIGS. 1 through 4  show a display container  10  for a polyurethane product  20  in accordance with a first embodiment of the present invention. The display container  10  includes a space enclosed by first edge  101  and second edge  102  thereof. The space defines a receiving section  11  the polyurethane product  20  is received therein when it is stored in the display container  10 . The first edge  101  has a width defined between an inner periphery thereof that delimits the receiving section  11  partially and an outer periphery thereof that delimits a circumference of the display container  10  partially. Moreover, the receiving section  11  where the first edge  101  surrounds provides a sealed closure. Therefore, the first edge  101  can not allow the polyurethane product  20  to insert into the receiving section  11 . In the preferred embodiment, the first edge  101  includes two opposing portions in a spaced relationship and a portion extending therebetween and joins the two opposing portions to form a continuous edge. Additionally, the second edge  102  defines an opening  12  thereon, and therefore, the polyurethane product  20  can be inserted into the receiving section  11  through the opening  12 . 
     After the polyurethane product  20  is disposed in the receiving section  11 , a vacuumizing device  30  is inserted from outside into the receiving section  11  through the opening  12  and is partially disposed outside the display container  10  and is partially disposed in the receiving section  11 . The vacuumizing device  30  is used to vacuumize the receiving section  11  so that the polyurethane product  20  is prevented from oxidization. Additionally, the opening  12  is adapted to be reduced to a size that just enables the insertion of the vacuumizing device  30  (as shown in  FIG. 2 ). After vacuumizing the receiving section  11 , a sealing device (not shown) is used to make the second edge  102  close the opening  12  (as shown in  FIG. 4 ).  FIG. 4  also shows the sealing device creates a sealed edge  103  having a width defined between an inner periphery thereof that delimits the receiving section  11  partially and an outer periphery defined from the second edge  102  and in which the second edge  102  cooperates with the outer periphery of the first edge  11  to delimit the circumference of the display container  10 . Therefore, the polyurethane product  20  is stored in a vacuumized condition and is prevented from being deteriorated due to oxidization. Preferably, the sealing device applies a thermal seal process to close the opening  12 . 
     In addition, the polyurethane product  20  is disposed in a center of the receiving section  11  so it is equally distanced from the any portion of the first edge  101 . Consequently, vacuumizing of the receiving section  11  can be accomplished successfully and easily. Furthermore, the polyurethane product  20  referred to hereinwith mainly consists of polyurethane rubber which has high-endurance, and high-durability characteristics and excellent solvent resistance. Specifically, it has 600%-800% elongation, and 2-10 times better abrasion resistance and solvent resistance than natural rubber. Additionally, the polyurethane product  20  is in a form of a strap and is flexible enough to be rolled into a coil which includes a series of concentric circles. Consequently, the polyurethane product  20  does not occupy a large space of the receiving section  11 . 
       FIGS. 5 and 6  show a second embodiment of the present invention. The second embodiment is a display container set  100   a  including a plurality of display containers  10   a  detachably engaged together in a row. Each of the display containers  10   a  includes a first edge  101   a  having a width defined between an inner periphery thereof that delimits the receiving section  11   a  partially and an outer periphery thereof that delimits a circumference of the display container partially, with the first edge  101   a  providing a sealed closure, and a second edge  102   a  cooperating with the outer periphery of the first edge to delimit the circumference of the display container. Also, each of the display containers  10   a  is similar to the display container  10  and includes a polyurethane product  20  received therein. Each polyurethane product  20  is disposed in a center of a receiving section  11   a  of the display container  10   a . The polyurethane products  20  are stored in a vacuumized condition and are prevented from being deteriorated due to oxidization. Further, a connecting edge  40   a  is defined on a portion of the outer periphery of the first edge  101   a  of each display container  10   a . The connecting edges  40   a  of two adjacent display containers  10   a  are engaged with each other, and therefore, the two display containers  10   a  are attached to one another. Additionally, the two display containers  10   a  are adapted to be separated form each other by disengaging from the connecting edges  40   a . In the preferred embodiment, the connecting edge  40   a  for each display container  10   a  is in a serrated form which includes a series of consecutive teeth. 
       FIGS. 7 and 8  show a third embodiment of the present invention. The third embodiment is a display container set  100   b  including a plurality of display containers  10   b  detachably engaged together in a column. Each of the display containers  10   b  includes a first edge  101   b  having a width defined between an inner periphery thereof that delimits the receiving section  11   b  partially and an outer periphery thereof that delimits a circumference of the display container partially, with the first edge  101   b  providing a sealed closure, and a second edge  102   b  cooperating with the outer periphery of the first edge to delimit the circumference of the display container. Also, each of the display containers  10   b  is similar to the display container  10  and includes a polyurethane product  20  received therein. Each polyurethane product  20  is disposed in a center of a receiving section  11   b  of the display container  10   b . The polyurethane products  20  are stored in a vacuumized condition and are prevented from being deteriorated due to oxidization. Further, a connecting edge  40   b  is defined on a portion of the outer periphery of the first edge  101   b  of each display container  10   b . The connecting edges  40   b  of two adjacent display containers  10   b  are engaged with each other, and therefore, the two display containers  10   b  are attached to one another. Additionally, the two display containers  10   b  are adapted to be separated form each other by disengaging from the connecting edges  40   b . In the preferred embodiment, the connecting edge  40   b  for each display container  10   b  is in a serrated form which includes a series of consecutive teeth. 
     In view of the forgoing, the display container  10  is of a simple structure and it eliminates materials and eases a complicated packing process of using a conventional display container. Likewise, each display container  10   a ,  10   b  of the display container set  100   a ,  100   b  is of a simple structure. Additionally, the polyurethane products  20  are prevented from being deteriorated due to oxidization. Furthermore, the display container  10  and each display container  10   a ,  10   b  of the display container set  100   a ,  100   b  are not liable to get damaged under the thermal seal process. 
     While the specific embodiments have been illustrated and described, numerous modifications come to mind without significantly departing from the spirit of invention, and the scope of invention is only limited by the scope of the accompanying claims.