Expendable bag

Abstract

An expandable bag having a bag body, at least one expendable member and at least one retractable wheel assembly is provided. The bag body defines an enclosed space of the expandable bag. The at least one expendable member is coupled to the bag body to expand a size of the enclosed space. Further, the at least one retractable wheel assembly is coupled along the at least one expandable member. The at least one retractable wheel assembly is operational to drag the expandable bag thereon, only when the at least one expendable member is expanded to increase the size of expandable bag.

What is claimed is: 
     
         1 . An expandable bag, comprising:
 a bag body defining an enclosed space;   at least one expendable member coupled to the bag body to expand a size of the enclosed space; and   at least one retractable wheel assembly coupled along the at least one expandable member,   wherein the at least one retractable wheel assembly is operational to drag the expandable bag thereon, only when the at least one expendable member is expanded.   
     
     
         2 . The expandable bag as claimed in  claim 1 , wherein the at least one retractable wheel assembly is coupled along a base portion of the at least one expendable member, and foldably retained within a closure of the bag body along with the at least one expendable member, when the at least one expandable member is not expanded. 
     
     
         3 . The expandable bag as claimed in  claim 1 , wherein the bag body is made of flexible recyclable or non-recyclable material. 
     
     
         4 . An expandable bag, comprising:
 a hag body defining an enclosed space;   at least one expendable member coupled to the bag body; and   at least one retractable wheel assembly coupled along a base of the at least one expandable member,   wherein the expendable member is adapted to expand horizontally outward from the bag body to increase a size of the enclosed space of the bag body to obtain an expanded bag body, and, simultaneously, enables the at least one retractable wheel assembly to engage with a plain to drag the expanded bag body over the plain, and   wherein the expendable member is adapted to be collapsed to retain an original size of the enclosed space of the bag body, and, simultaneously, enables the at least one retractable wheel assembly to de-engage with a plain to be hangingly carry over.   
     
     
         5 . The expandable bag as claimed in  claim 4  further comprising a closure along the bag body to foldably retain the at least one retractable wheel assembly along with the at least one expendable member, when the at least one expandable member is collapsed. 
     
     
         6 . The expandable bag as claimed in  claim 4  further comprising a closable opening configured along the bag body to access the enclosed space, in its both sizes, the original size or the increased size, wherein the closable opening comprises a zipper arrangement to close and open the closable opening. 
     
     
         7 . The expandable bag as claimed in  claim 4 , wherein the bag body is made of flexible recyclable or non-recyclable material. 
     
     
         8 . An expandable bag, comprising:
 a bag body having opposite sides, an enclosed space defined between the opposite sides, and a closable opening to access the enclosed space;   at least one expendable member configured along at least one of the opposite sides of the bag body;   at least one retractable wheel assembly coupled along a base of the at least one expandable member; and   at least one expending and retracting attachment configured along the at least one of the opposite ends of the bag body to define a closure,   wherein the expendable member is adapted to be released, via the at least one expending and retracting attachment, to expand horizontally outward from the bag body to increase a size of the bag body to obtain an expanded bag body, and, simultaneously, enables the at least one retractable wheel assembly to engage with a plain to drag the expanded bag body over the plain, and   wherein the expendable member is adapted to be retracted, via the at least one expending and retracting attachment, to retain an original size of the bag body, and, simultaneously, enables the at least one retractable wheel assembly to de-engage with a plain to be hangingly carry over.   
     
     
         9 . The expandable bag as claimed in  claim 8 , wherein the at least one expending and retracting attachment is a flap cover circumferentially attached along an end portion of the bag body to be zipped and unzipped to release and retract the expendable member. 
     
     
         10 . The expandable bag as claimed in  claim 8 , wherein the at least one expending and retracting attachment is configured along a circumference of an upper surface or an inner surface at along the at least one end portion of the bag body in a form of a drawstring attachment. 
     
     
         11 . The expandable bag as claimed in  claim 10 , wherein the drawstring is a non-elastic string or a partially elastic string with substantially less elasticity. 
     
     
         12 . The expandable bag as claimed in  claim 8 , wherein the at least one expending and retracting attachment is a Velcro® attachment configured along the at least one of the opposite sides end portion. 
     
     
         13 . The expandable bag as claimed in  claim 8 , wherein the least one expending and retracting attachment is a belt-buckle attachment configured along the at least one end portion of the opposite sides end portion. 
     
     
         14 . The expandable bag as claimed in  claim 8 , wherein the closable opening extends along the expanded bag body. 
     
     
         15 . The expandable bag as claimed in  claim 8 , wherein the closable opening comprises a zipper arrangement to close and open the closable opening. 
     
     
         16 . The expandable bag as claimed in  claim 8  further comprising a carrying attachment coupled to at least the bag body and to the expandable member to carry the bag in expanded and collapsed form. 
     
     
         17 . The expandable bag as claimed in  claim 16 , wherein the carrying attachment is one of a loop-strap attachment, a hand-strap attachment, a back-strap attachment, a handle attachment or a wheel-handle attachment. 
     
     
         18 . The expandable bag as claimed in  claim 8  further comprising at least one additional compartment configured on the bag body, wherein the at least one additional compartment comprises a zipper coupled thereto. 
     
     
         19 . The expandable bag as claimed in  claim 8 , wherein the bag body is made of flexible recyclable or non-recyclable material.