Portable, pumpless liquid water weight ballast system

Abstract

A portable, pumpless water ballast system can be constructed of a flexible water-proof membrane molded or formed of welded panels to make a desired shape, such as cube-shaped when filled with water. Along the top side is an opening for filling the container. A water-proof closure is provided in the opening to prevent water leaking out. An air release valve can be installed near the top area of the container's top or side panels. A handle or strap can also be provided on one or more of the adjacent sides of the container. A plastic threaded drain and closure can be provided on one or more sides to allow for emptying of the container or to attach other features like a hose or other accessory.

What is claimed is: 
     
         1 . A portable, pumpless liquid water weight ballast system, comprising:
 a container comprising a flexible and waterproof material, and defining an open interior; and   an openable zipper closure defined along a top side of the container so that the container can be sealed water-tight.   
     
     
         2 . The portable, pumpless liquid water weight ballast system of  claim 1 , further comprising a threaded fitting defined in the container and in communication with the open interior and a threaded closure that seals the threaded fitting. 
     
     
         3 . The portable, pumpless liquid water weight ballast system of  claim 2 , further comprising a hose that can be coupled to the threaded fitting on a first end and a nozzle that can be coupled to an opposing second end of the hose. 
     
     
         4 . The portable, pumpless liquid water weight ballast system of  claim 1 , further comprising a stiffener sheet disposed in one or more side panels of the container. 
     
     
         5 . The portable, pumpless liquid water weight ballast system of  claim 1 , wherein the container is a rectangular shape. 
     
     
         6 . The portable, pumpless liquid water weight ballast system of  claim 1 , further comprising an air release valve provided to a portion of the container that is in communication with the open interior. 
     
     
         7 . The portable, pumpless liquid water weight ballast system of  claim 1 , wherein the openable closure is an interlocking seal. 
     
     
         8 . The portable, pumpless liquid water weight ballast system of  claim 1 , further comprising at least one baffle disposed within the open interior of the container. 
     
     
         9 . The portable, pumpless liquid water weight ballast system of  claim 1 , further comprising a handle coupled to the container. 
     
     
         10 . The portable, pumpless liquid water weight ballast system of  claim 1 , further comprising:
 a first portion of hook and loop fastener disposed on a first planar portion of the container; and   a second portion of hook and loop fastener disposed on a second planar portion of the container,   wherein the second portion of hook and loop fastener is an opposite configuration as compared to that of the first portion of hook and loop fastener.   
     
     
         11 . The portable, pumpless liquid water weight ballast system of  claim 10 , further comprising a flap that covers over the first portion of hook and loop fastener. 
     
     
         12 . The portable, pumpless liquid water weight ballast system of  claim 1 , wherein the container defines an open top side. 
     
     
         13 . The portable, pumpless liquid water weight ballast system of  claim 12 , further comprising a strap positioned to hold a rolled portion of the container in a position that encloses the open top side. 
     
     
         14 . The portable, pumpless liquid water weight ballast system of  claim 1 , further comprising a static weight provided to container. 
     
     
         15 . The portable, pumpless liquid water weight ballast system of  claim 1 , wherein the container defines a pocket for receiving a removable static weight. 
     
     
         16 . The portable, pumpless liquid water weight ballast system of  claim 1 , further comprising a one-way inlet valve defined in the container that is in communication with the open interior. 
     
     
         17 . The portable, pumpless liquid water weight ballast system of  claim 1 , wherein a pair of opposing side panels of the container are collapsible to permit contraction of the container along the pair of opposing side panels that are collapsible. 
     
     
         18 . A portable, pumpless liquid water weight ballast system, comprising:
 a first container comprising a flexible and waterproof material, and defining an open interior, wherein the first container includes an openable closure so that the first container can be sealed water-tight, and wherein the first container comprises a first portion of hook and loop fastener disposed on a first planar portion of the first container; and   a second container comprising a flexible and waterproof material, and defining an open interior, wherein the second container includes an openable closure so that the second container can be sealed water-tight, and wherein the second container comprises a second portion of hook and loop fastener disposed on a second planar portion of the second container,   wherein the second portion of hook and loop fastener is complimentary to the first portion of hook and loop fastener such that when the first and second portions of hook and loop fastener are aligned and brought into contact with one another, the respective first and second containers are secured together.   
     
     
         19 . A method of providing portable ballast to a boat, the method comprising:
 submerging a container comprising a flexible and waterproof material underwater to fill an open interior thereof with water from a body of water;   sealing an openable zipper closure of the container to prevent water contained in the open interior from escaping the container; and   disposing the container that has been filled with water and sealed in a boat.   
     
     
         20 . The method of  claim 19 , further comprising disposing a static weight in the container before submerging the container underwater.