Flowable material container
A flowable material container comprises an outer container, including a circumferentially extending, flexible fabric sidewall with stiffeners mounted within pockets in the sidewall, and an inner bag. The stiffeners may be removable to permit the support container to be placed in a collapsed, shipping state. A vertical lifting element may be associated with at least one of the inner bag and the outer container. The sidewall may be circumferentially expandable to provide access to the inner bag. The sidewall may also include a door to provide lateral access to the entire interior of the outer container when opened.
None.
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENTNone.
BACKGROUND OF THE INVENTIONEquipment used to hold, carry and dispense concrete at a building site, including concrete trucks and concrete pumps, may be washed or cleaned out soon after use. This washout procedure typically takes place at or close to the job site. In addition, tools and equipment used for a drywall finishing, stucco application and other similar work are typically washed at the worksite. In the last several years the construction industry, and in particular the concrete industry, has seen many changes in the ecological regulations covering the washout procedure to protect groundwater from contamination from waste concrete as well as other groundwater-contaminating materials. New regulations have created additional restrictions and requirements relating to the treatment and disposal of excess material and wastewater. One of the main concerns is the relatively high pH level in concrete waste. The prevention of spilled concrete from contaminating the ground during the operation of a concrete pump or during the discharge of concrete from a concrete truck is also important. Also, contamination from washing groundwater-contaminating materials, such as concrete, from tools and equipment must also be eliminated.
One method of dealing with this problem is to build small plastic-lined impoundments on site. It was believed that once the water settled and was clear, the water was no longer problem. However, it has become recognized that the wastewater, after settling, may still have an unacceptably high pH. In addition, such impoundments are typically constructed using straw bales; the walls of such impoundments are typically too tall for concrete pumps to be washed out into.
BRIEF SUMMARY OF THE INVENTIONA first aspect of the invention is directed to a flowable material container comprising an outer container and an inner bag. The outer container comprises a circumferentially extending, flexible fabric sidewall, the sidewall defining an interior and comprising pockets, and stiffeners mounted within the pockets. The stiffeners are preferably removable to permit the support container to be placed in an open, use state and a collapsed, shipping state. A vertical lifting element may be associated with at least one of the inner bag and the outer container. The sidewall may include a door movable between a closed state and an open state to provide lateral access to the entire interior when in the open state.
A second aspect of the invention is directed to a method for containing a material, the material being at least initially flowable. A flowable material container is placed on a support surface at a chosen location, the flowable material container comprising an inner bag and an outer container, the outer container comprising a circumferentially extending, flexible fabric sidewall and the inner bag comprising an inner, flexible, conformable bag within the outer container. An at least initially flowable material is discharged into the inner bag. At least portions of the inner bag, with the material therein, and the outer container are separated from one another to facilitate removing the inner bag and material therein from the outer container. The settable material may be allowed to set before opening the door in the sidewall.
A third aspect of the invention is directed to a method for preparing an area for concrete discharge. An outer container, comprising a circumferentially extending, flexible fabric sidewall with pockets, is selected. Stiffeners are placed within at least some of the pockets so to permit the outer container to be placed in an open, use state from a collapsed, shipping state. An inner, flexible, conformable bag is arranged within the interior to create a flowable material container. The flowable material container is positioned at a concrete discharge area for receipt of discharged flowable concrete. The method may further comprise discharging flowable concrete into the inner bag, allowing the flowable concrete to set, lifting the flowable material container together with the material in the inner bag, separating at least portions of the inner bag, with the set concrete therein, and the outer container from one another to facilitate the removing step, and removing the inner bag and set concrete therein from the outer container.
Various features and advantages of the invention will appear from the following description in which the preferred embodiments have been set forth in detail in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is disclosed with reference to various embodiments with like reference numerals referring to like elements.
Outer container 12 also includes first and second doors 32, 34 which are secured to another using hook and loop fastener material 26 at their overlapping vertical edges 36, 38. Door attachment elements 40, 42 are secured to appropriate positions along outer layer 20 to retain doors 32, 34 in their fully open state shown in
Outer container 12 also includes four vertical lifting elements 44 sewn or otherwise secured to sidewall 16. Each vertical lifting element 44 is typically made of nylon strapping 46. The size and strength of strapping 46 is chosen to accommodate the load intended for container 10. Strapping 46 extends down each corner 48 of outer container 12 and then beneath bottom 17. The pattern for strapping 46 beneath bottom 17 may be, for example, the X shaped pattern shown in
One or more of corners 48 may be constructed as shown in
Vertical lifting elements 44 have been shown secured to an extending from outer container 12. However, vertical lifting elements may be provided by, for example, strapping positioned between outer container 12 and inner bag 14. In addition, a concrete-embeddable anchor 70, one embodiment being shown in
Concrete test cylinders are often made during construction. It is important that these concrete test cylinders be properly cured. One way to help ensure that the concrete test cylinders are properly cured is to ensure that they are not subjected to inappropriately high or low temperatures. To provide such an environment, container 10 may be used with a top or lid 76 shown in
Doors 32, 34 and 62, as discussed above, can be opened to provide access to inner bag 14. Access to inner bag 14 can also be provided by providing sidewall 16 with a circumferentially expandable portion 82 as shown in
The various embodiments of the present intention have been described using hook and loop fastener material 28 to secure various components together. However, in many cases hook and loop fastener material 28 can be replaced by other fasteners, such as cam buckles, similar to those used on aircraft seat belts, to help lower the cost of container 10.
Other modification and variation can be made to the disclosed embodiments without departing from the subject of the invention as defined in following claims. For example, the invention can be used as a washout basin for washing tools and equipment used in applying stucco, wallboard mud, and other groundwater-contaminating materials.
Any and all patents, patent applications and printed publications referred to above are incorporated by reference.
Claims
1. A flowable material container comprising:
- an outer container comprising: a circumferentially extending, flexible fabric sidewall, the sidewall defining an interior and comprising pockets; and stiffeners mounted within the pockets; and
- an inner bag located within the interior for receipt of a flowable material.
2. The container according to claim 1 wherein at least some of the stiffeners are removably mounted within the pockets to permit the support container to be placed in an open, use state and a collapsed, shipping state.
3. The container according to claim 1 further comprising a vertical lifting element associated with at least one of the inner bag and the outer container, whereby the flowable material container, with a flowable material within the inner bag, may be lifted vertically using the vertical lifting elements.
4. The container according to claim 3 wherein the vertical lifting element comprises a plurality lifting elements extending from the outer container.
5. The container according to claim 3 wherein the vertical lifting element comprises a concrete-embeddable anchor at least partially housed within the inner bag.
6. The container according to claim 3 wherein the vertical lifting element comprises strapping positioned between the outer container and the inner bag.
7. The container according to claim 1 wherein the sidewall is a generally rectangular sidewall.
8. The container according to claim 1 wherein the outer container comprises a bottom and the bottom is an integral extension of the sidewall.
9. The container according to claim 1 wherein the outer container comprises a bottom and the bottom is releasably secured to the sidewall.
10. The container according to claim 1 further comprising means for separating at least portions of the outer container and inner bag from one another to facilitate the removal of the inner bag with a flowable material therein from the outer container and permit the reuse of the outer container.
11. The container according to claim 10 wherein the sidewall has a height, the separating means comprising a door in the sidewall movable between a closed state and an open state to provide lateral access to the entire interior when in the open state.
12. The container according to claim 11 wherein the door extends over the entire height.
13. The container according to claim 11 wherein the door is a side-opening door movable about an axis generally parallel to the height.
14. The container according to claim 11 wherein the door comprises first and second side-opening doors movable about first and second axes, the axes oriented generally parallel to the height.
15. The container according to claim 11 wherein the door is a drop-down door movable about an axis generally perpendicular to the height.
16. The container according to claim 15 wherein the sidewall is a generally rectangular sidewall comprising a first side and the door constitutes said first side.
17. The container according to claim 11 further comprising means for at least temporarily maintaining the door in the open state.
18. The container according to claim 10 wherein the separating means comprises a selectively circumferentially expandable portion of the sidewall placeable in a second, expanded circumference state from a first, reduced circumference state thereby providing access to the inner bag when in the second, expanded circumference state.
19. The container according to claim 1 wherein the sidewall comprises:
- inner and outer layers, said inner and outer layers defining said pockets; and
- stiffeners access regions permitting user access to said at least some of the stiffeners.
20. The container according to claim 1 wherein the inner bag is a liquid impervious inner bag so to prevent water from leaking therethrough.
21. A flowable material container comprising:
- an outer container comprising: a circumferentially extending, flexible fabric sidewall, the sidewall having a height and defining an interior and comprising pockets; stiffeners mounted within the pockets to permit the support container to be placed in an open, use state and a collapsed, shipping state; and stiffener access regions permitting user access to said at least some of the stiffeners so that said stiffeners may be removed from and placed into the pockets;
- a vertical lifting element associated with at least one of the inner bag and the outer container;
- an inner, flexible, conformable bag located within the interior for receipt of a flowable material, whereby the flowable material container, with a flowable material within the inner bag, may be lifted vertically using the vertical lifting elements;
- the inner bag being removably housed within the outer container; and
- means for separating at least portions of the outer container and inner bag from one another to facilitate the removal of the inner bag with a flowable material therein from the outer container and permit the reuse of the outer container.
22. A method for containing a material, the material being at least initially flowable, comprising:
- placing a flowable material container on a support surface at a chosen location, the flowable material container comprising an inner bag and an outer container, the outer container comprising: a circumferentially extending, flexible fabric sidewall, the sidewall defining an interior, the sidewall having a height; and the inner bag comprising an inner, flexible, conformable bag located within the interior for receipt of a flowable material;
- discharging an at least initially flowable material into the inner bag;
- separating at least portions of the inner bag, with the material therein, and the outer container from one another to facilitate the removing step; and
- removing the inner bag and material therein from the outer container.
23. The method according to claim 22 further comprising lifting the flowable material container with the material within the inner bag.
24. The method according to claim 22 wherein the discharging step comprises discharging a settable material into the inner bag, and further comprising allowing the settable material to set before the separating step.
25. The method according to claim 22 wherein the placing step is carried out with the inner bag having an upper portion folded back over an outside surface of the sidewall, and further comprising securing the material within the inner bag, said securing step comprising pulling the upper portion of the inner bag up over the sidewall.
26. The method according to claim 22 wherein the separating step comprises moving a door between a closed state and an open state to provide lateral access to the inner bag within the interior when in the open state.
27. The method according to claim 22 wherein the separating step comprises placing a selectively circumferentially expandable portion of the sidewall in a second, expanded circumference state from a first, reduced circumference state thereby providing access to the inner bag when in the second, expanded circumference state.
28. A method for preparing an area for concrete discharge, comprising:
- selecting an outer container comprising a circumferentially extending, flexible fabric sidewall, the sidewall defining an interior and comprising pockets;
- placing stiffeners within at least some of the pockets so to permit the outer container to be placed in an open, use state from a collapsed, shipping state;
- arranging an inner, flexible, conformable bag within the interior to create a flowable material container; and
- positioning the flowable material container at a concrete discharge area for receipt of discharged flowable concrete.
29. The method according to claim 28 further comprising:
- discharging flowable concrete into the inner bag;
- allowing the flowable concrete to set;
- lifting the flowable material container together with the material in the inner bag;
- separating at least portions of the inner bag, with the set concrete therein, and the outer container from one another to facilitate the removing step; and
- removing the inner bag and set concrete therein from the outer container.
30. The method according to claim 29 wherein the discharging step is carried out using flowable concrete having excess water, and further comprising removing excess water from the set concrete after the allowing step.
Type: Application
Filed: Apr 4, 2005
Publication Date: Oct 5, 2006
Inventor: Henry Modena (La Honda, CA)
Application Number: 11/098,298
International Classification: B65D 30/22 (20060101); B65D 33/14 (20060101); B65D 33/00 (20060101); B65D 33/16 (20060101); B65D 30/08 (20060101); B65D 33/02 (20060101); B65D 30/10 (20060101);