Utility totebag system with multiple replaceable liners

Abstract

The invention is a utility totebag system that can be carried by a person. The system includes an outer carrier shell and at least two interchangeable, removable liners with varying characteristics adapted to differing requirements of transporting various small items. Any number of specialized liners can be includes in the system with preferable design choices for the set of interchangeable liners including one made of water-resistant material, and/or one made of thermally insulating material. Optionally an interior closure strap is provided to narrow the opening of the totebag. The interior of the outer carrier shell has means for temporarily attaching any one of the set of interchangeable liners. Each liner has matching attaching means. In alternative embodiments, the shell and/or the liners have a flexible flap of material that covers and protects the attachment means.

1 . A utility totebag system comprising:
 an outer totebag carrier shell with an opening and a first fastening component attached to an interior surface of the outer totebag carrier shell adjacent to the opening;   a first liner sized to nest inside of the outer totebag carrier shell, the first liner having a second fastening component attached to an outside surface, the second fastening device mating with the first fastening component to selectively attach the first liner to the outer totebag carrier shell under control of a user, the first liner having at least two pockets in a first configuration for transporting a first set of items, the first liner being made of a non-waterproof material; and   a second liner sized to nest inside of the outer totebag carrier shell, the second liner having a third fastening component attached to an outside surface, the third fastening device mating with the first fastening component to selectively attach the second liner to the outer totebag carrier shell under control of a user with the second liner having at least two pockets in a second configuration for transporting a second set of items, the second liner being made of a water-resistant material; and wherein the user can selectively attach the first or the second liner to the outer totebag carrier shell.   
     
     
         2 . The utility totebag system of  claim 1  wherein the first liner further comprises a portable computer pocket with a securing strap for holding a portable computer. 
     
     
         3 . The utility totebag system of  claim 1  wherein walls of the first or second liner are made from a flexible multi-layered material that includes a layer thermally insulating material sandwiched between two outer layers. 
     
     
         4 . The utility totebag system of  claim 1  wherein the second liner includes pockets for transporting diaper supplies. 
     
     
         5 . The utility totebag system of  claim 1  wherein the outer totebag carrier shell further comprises an outer layer and inner layer and a cap that covers the outer layer and inner layer at the opening, the cap extending down the interior surface of the outer totebag carrier shell to the first fastening component, the cap substantially covering the first fastening component and being attached along a first line of attachment to an upper edge of first fastening component and at least the inner layer, the first line of attachment extending substantially around the opening, the cap having a first flexible flap of material extending below the first line of attachment and substantially covering the first fastening component, the first fastening component extending below the first line of attachment and being accessible for attachment to first or second liners under the first flexible flap of material. 
     
     
         6 . The utility totebag system of  claim 5  wherein the first liner has a second flexible flap of material extending over the second fastening component, second flexible flap of material being disposed substantially adjacent to the first flexible flap of material when the first liner is attached to the outer totebag carrier shell, so that first and second flexible flaps of material substantially cover first and second fastening components when first and second fastening components are attached. 
     
     
         7 . The utility totebag system of  claim 1  further comprising an interior strap attached to a first side of outer totebag carrier shell near a top of the opening and a latching means attached to a second side of outer totebag carrier shell near the top of the opening, the latching means removably securing the interior strap under control of a user. 
     
     
         8 . The utility totebag system of  claim 7  wherein the interior strap has a metallic component and the latching means includes a magnet that attracts the metallic component to removably latch the interior strap. 
     
     
         9 . The utility totebag system of  claim 7  wherein the outer totebag carrier shell further comprises a latch shroud extending over the latching means, the latch shroud having an open top allowing insertion and removal of the interior strap. 
     
     
         10 . A utility totebag system comprising:
 an outer totebag carrier shell with an opening and a first fastening component attached to an interior surface of the outer totebag carrier shell adjacent to the opening;   a first liner sized to nest inside of the outer totebag carrier shell, the first liner having a second fastening component attached to an outside surface, the second fastening device mating with the first fastening component to selectively attach the first liner to the outer totebag carrier shell under control of a user, the first liner having at least two pockets in a first configuration for transporting a first set of items, the first liner having being made of a first material; and   a second liner sized to nest inside of the outer totebag carrier shell, the second liner having a third fastening component attached to an outside surface, the third fastening device mating with the first fastening component to selectively attach the second liner to the outer totebag carrier shell under control of a user with the second liner having at least two pockets in a second configuration for transporting a second set of items, the second liner being a multi-layered composite structure with the innermost layer of the multi-layered composite structure being a second material different from the first material; and wherein the user can selectively attach the first or the second liner to the outer totebag carrier shell.   
     
     
         11 . The utility totebag system of  claim 10  wherein the multi-layered composite structure includes a layer thermally insulating material sandwiched between two outer layers. 
     
     
         12 . The utility totebag system of  claim 10  wherein the first material is a water-resistant material. 
     
     
         13 . The utility totebag system of  claim 10  wherein the first liner further comprises a portable computer pocket with a securing strap for holding a portable computer. 
     
     
         14 . The utility totebag system of  claim 10  wherein the outer totebag carrier shell further comprises an outer layer and inner layer and a cap that covers the outer layer and inner layer at the opening, the cap extending down the interior surface of the outer totebag carrier shell to the first fastening component, the cap substantially covering the first fastening component and being attached along a first line of attachment to an upper edge of first fastening component and at least the inner layer, the first line of attachment extending substantially around the opening, the cap having a first flexible flap of material extending below the first line of attachment and substantially covering the first fastening component, the first fastening component extending below the first line of attachment and being accessible for attachment to first or second liners under the first flexible flap of material. 
     
     
         15 . The utility totebag system of  claim 14  wherein the first liner has a second flexible flap of material extending over the second fastening component, second flexible flap of material being disposed substantially adjacent to the first flexible flap of material when the first liner is attached to the outer totebag carrier shell, so that first and second flexible flaps of material substantially cover first and second fastening components when first and second fastening components are attached. 
     
     
         16 . The utility totebag system of  claim 10  further comprising an interior strap attached to a first side of outer totebag carrier shell near a top of the opening and a latching means attached to a second side of outer totebag carrier shell near the top of the opening, the latching means removably securing the interior strap under control of a user. 
     
     
         17 . The utility totebag system of  claim 16  wherein the interior strap has a metallic component and the latching means includes a magnet that attracts the metallic component to removably latch the interior strap. 
     
     
         18 . The utility totebag system of  claim 16  wherein the outer totebag carrier shell further comprises a latch shroud extending over the latching means, the latch shroud having an open top allowing insertion and removal of the interior strap.