WO2016068844A1

WO2016068844A1 - Fluid container system with deployable wheel assembly

Info

Publication number: WO2016068844A1
Application number: PCT/US2014/062394
Authority: WO
Inventors: Eric Raymond Schubert
Original assignee: Eric Raymond Schubert
Priority date: 2014-10-27
Filing date: 2014-10-27
Publication date: 2016-05-06

Abstract

A fluid container system is provided having selectively deployable and retractable support and/or wheel assemblies. The wheel assemblies are capable of being retracted upwardly while the landing assembly is capable of being deployed downwardly and/or retracted upwardly, e.g., during storage or shipment of the fluid container system (e.g., during sea travel or rail travel). At an appropriate time (e.g., the fluid container system is about to placed onto the ground or other surface by a crane or other suitable device), the wheel assemblies are then selectively deployed downwardly while the landing gear assembly is capable of being retracted upwardly and/or deployed downwardly, e.g., to provide a fully functional fluid container system/trailer/chassis combination that may be immediately capable of being engaged to a truck/tractor/chassis and driven away.

Description

FLUID CONTAINER SYSTEM WITH DEPLOYABLE WHEEL ASSEMBLY

FIELD OF THE INVENTION

The present invention relates generally to fluid containers and, more specifically, to a fluid container system with selectively deployable support and/or wheel assemblies.

BACKGROUND OF THE INVENTION

The use of road tankers to transport various fluids, such as gases and liquids, has been widespread for many decades. Of particular recent interest has been the development of road tankers that can easily and efficiently transport various liquefied gases, such as but not limited to liquefied natural gas (hereinafter referred to as "LNG ").

LNG is natural gas (predominantly methane, i.e., CH₄) that has been converted to liquid form for ease of storage or transport. It takes up about l/600th the volume of natural gas in the gaseous state. The liquefaction process involves removal of certain components, such as dust, acid gases, helium, water, and heavy hydrocarbons, which could cause difficulty downstream. The natural gas is then condensed into a liquid at close to atmospheric pressure by cooling it to approximately -162 °C (-260 °F); maximum transport pressure is set at around 25 kPa (4 psi).

LNG achieves a higher reduction in volume than compressed natural gas (CNG) so that the (volumetric) energy density of LNG is 2.4 times greater than that of CNG or 60 percent of that of diesel fuel. This makes LNG cost efficient to transport over long distances where pipelines do not exist. Specially designed cryogenic sea vessels (LNG carriers) or cryogenic road tankers are used for its transport. These vessels and tankers are specifically designed and constructed to maintain the LNG at a proper temperature/pressure range so as to avoid any significant loss of the LNG during the transport process. LNG is principally used for transporting natural gas to markets, where it is re-gasified and distributed as pipeline natural gas. However, its relatively high cost of production and the need to store it in expensive cryogenic tanks have so far hindered widespread commercial use.

As noted above, the use of cryogenic sea vessels (LNG carriers) has allowed the trans-shipment of large amounts of LNG from one seaport to another seaport. However, the trans-shipment of cryogenic road tankers from one seaport to another seaport has been much more problematic. For example, while large cargo ships are able to carry a great number of conventional cargo containers (which are generally easily stacked upon one another and secured in place) from one port in one part of the world to a destination port on the other side of the globe, this methodology does not permit the efficient and economical transshipment of large numbers of cryogenic road tankers on conventional cargo ships.

Accordingly, it would be advantageous to provide a new and improved Fluid container system that overcomes at least one of the aforementioned problems.

SUMMARY OF THE INVENTION

In accordance with the general teachings of the present invention, a new and improved fluid container system is provided, wherein the fluid container system includes selectively deployable and retractable support and/or wheel assemblies. That is, the wheel assemblies are capable of being retracted upwardly while the support assembly is capable of being deployed upwardly and/or downwardly, e.g., during storage or shipment of the fluid container system (e.g., during sea travel or rail travel). At an appropriate time (e.g., the fluid container system is about to be placed onto the ground or other surface by a crane or other suitable device), the wheel assemblies are then selectively deployed downwardly while the support assembly is capable of being retracted downwardly and/or upwardly, e.g., to provide a fully functional fluid container system/trailer combination that may be immediately capable of being engaged to a truck/tractor and driven away.

By way of a non-limiting example, the fluid container system of the present invention is selectively operable to receive, store, dispense and/or transport any number of gases, liquefied gases and/or liquids, including those materials that must be maintained at a specified temperature range and/or pressure range. Furthermore, the fluid container system of the present invention is selectively operable to receive, store, dispense and/or transport any cryogenic materials.

In accordance with a first embodiment of the present invention, a fluid container system is provided, comprising: (1) a fluid tank; (2) a wheel assembly operably associated with a lower portion of the fluid tank; and (3) a deployment system selectively operable to raise the wheel assembly towards the lower portion of the fluid tank and lower the wheel assembly away from the lower portion of the fluid tank.

In accordance with an aspect of this embodiment, an inflation/deflation system is operably associated with the deployment system. In accordance with an aspect of this embodiment, the inflation/deflation system includes a fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move towards the lower portion of the fluid tank or to move away from the lower portion of the fluid tank.

In accordance with an aspect of this embodiment, the inflation/deflation system includes a second fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move towards the lower portion of the fluid tank or to move away from the lower portion of the fluid tank.

In accordance with an aspect of this embodiment, a control system is operably associated with the inflation/deflation system.

In accordance with an aspect of this embodiment, the control system is selectively operable to control the flow of a fluid either into or out of the first or second fluid reservoir system.

In accordance with an aspect of this embodiment, the inflation/deflation system is pneumatically actuated or hydraulically actuated.

In accordance with an aspect of this embodiment, either the first or second fluid reservoir system comprises an air bag system.

In accordance with an aspect of this embodiment, at least one support member is operably associated with the lower portion of the fluid tank.

In accordance with an aspect of this embodiment, the support member is selectively operable to permit the fluid tank to be placed atop another support member operably associated with an upper portion of another fluid tank when the wheel assembly is raised towards the lower portion of the fluid tank.

In accordance with an aspect of this embodiment, when the fluid tank is placed atop the other fluid tank, only the support member contacts the support member of the other fluid tank and the wheel assembly does not contact the other fluid tank.

In accordance with an aspect of this embodiment, the wheel assembly is selectively pivotable about an axis.

In accordance with an aspect of this embodiment, the wheel assembly is selectively operable to pivot arcuately downwardly away from the lower portion of the fluid tank.

In accordance with an aspect of this embodiment, the wheel assembly is selectively operable to pivot arcuately upwardly towards the lower portion of the fluid tank. In accordance with a second embodiment of the present invention, a fluid container system is provided, comprising: (1) a fluid tank; (2) a wheel assembly operably associated with a lower portion of the fluid tank; (3) a deployment system selectively operable to raise the wheel assembly towards the lower portion of the fluid tank and lower the wheel assembly away from the lower portion of the fluid tank; (4) an inflation/deflation system operably associated with the deployment system; and at (5) least one support member that is operably associated with the lower portion of the fluid tank, wherein the support member is selectively operable to permit the fluid tank to be placed atop another support member operably associated with an upper portion of another fluid tank when the wheel assembly is raised towards the lower portion of the fluid tank, wherein the inflation/deflation system includes a first fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move towards the lower portion of the fluid tank and a second fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move away from the lower portion of the fluid tank.

In accordance with an aspect of this embodiment, a control system is operably associated with the inflation/deflation system, wherein the control system is selectively operable to control the flow of a fluid either into or out of the first or second fluid reservoir.

In accordance with an aspect of this embodiment, the inflation/deflation system is either pneumatically actuated or hydraulically actuated.

In accordance with a third embodiment of the present invention, a fluid container system is provided, comprising: (1) a fluid tank; (2) a wheel assembly operably associated with a lower portion of the fluid tank; (3) a deployment system selectively operable to raise the wheel assembly towards the lower portion of the fluid tank and lower the wheel assembly away from the lower portion of the fluid tank; (4) an inflation/deflation system operably associated with the deployment system, wherein the inflation/deflation system includes a first fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move towards the lower portion of the fluid tank and a second fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move away from the lower portion of the fluid tank; (5) at least one support member that is operably associated with the lower portion of the fluid tank, wherein the support member is selectively operable to permit the fluid tank to be placed atop another support member operably associated with an upper portion of another fluid tank when the wheel assembly is raised towards the lower portion of the fluid tank; and (6) a control system operably associated with the inflation/deflation system, wherein the control system is selectively operable to control the flow of a fluid either into or out of the first or second fluid reservoir, wherein the inflation/deflation system is either pneumatically actuated or hydraulically actuated, wherein either the first or second fluid reservoir system comprises an air bag system.

In accordance with a fourth embodiment of the present invention, a new and improved fluid container system is provided, wherein the fluid container system includes selectively deployable support and wheel assemblies. That is, the support and wheel assemblies are capable of being stowed within a recess formed in the underside of the fluid container system, during storage or shipment of the fluid container system (e.g., during sea travel or rail travel). At an appropriate time (e.g., the fluid container system is about to be placed onto the ground or other surface by a crane or other suitable device), the support and wheel assemblies are then selectively deployed downwardly and/or outwardly from the recess of the underside of the fluid container system to provide a fully functional fluid container system/trailer combination that is immediately capable of being engaged to a truck/tractor and driven away.

In accordance with an aspect of this embodiment, an optional chassis can be incorporated into a lower portion of the fluid container system. The chassis can provide a support structure for attachment of the support and wheel assemblies thereto. A deployment system cooperates with the support and wheel assemblies in a manner that allows the deployment system to raise the support and wheel assemblies and then, when desired, lower the support and wheel assemblies.

In accordance with an aspect of this embodiment, the deployment system can include a screw system that, when rotated in a first direction is operable to raise the support and wheel assemblies and then, when rotated in a second direction (e.g., opposite of the first direction) is capable of lowering the support and wheel assemblies.

In accordance with an aspect of this embodiment, an axle system is provided that is operably associated with the screw system such that, as the screw system is rotated (e.g., in a clockwise or counter-clockwise manner), it can translate the rotational movement of the screw system into rotation (e.g., in a forward or reverse manner) of the axle system that is perpendicular to the rotation of the screw system.

In accordance with an aspect of this embodiment, a secondary screw system is provided that is operably associated with the support and wheel assemblies such that, as the axle system is rotated (e.g., in a forward or reverse manner), it can translate the rotational movement of the axle system into rotation (e.g., in a clockwise or counter-clockwise manner) of the secondary screw system that is perpendicular to the rotation of the axle system, thus raising or lowering the support and wheel assemblies. The secondary screw system can also provide a locking function to keep the support and wheel assemblies in a fixed position. By way of a non-limiting example, the direction of the rotation of the screw system and the secondary screw system may be configured to be opposite of one another. By way of a non-limiting example, when the screw system is rotated in a clockwise direction, the secondary screw system can be caused to rotate in counter-clockwise direction by appropriate rotation of the axle system. By way of another non-limiting example, when the screw system is rotated in a counter-clockwise direction, the secondary screw system can be caused to rotate in clockwise direction by appropriate rotation of the axle system.

In accordance with an aspect of this embodiment, the support assembly or the wheel assembly is selectively pivotable about an axis, wherein the support assembly is selectively operable to pivot arcuately downwardly away from the recess, and wherein the wheel assembly is selectively operable to pivot arcuately downwardly away from the recess.

In accordance with an aspect of this embodiment, a deployment system is selectively operable to cause the support assembly or the wheel assembly to pivot about an axis into a deployed position or a stored position, wherein the deployment system includes a selectively rotatable screw system, wherein the screw system is selectively operable to rotate in a first direction to cause deployment of the support assembly or the wheel assembly from the recess and selectively operable to rotate in a second direction to cause storing of the support assembly or the wheel assembly in the recess.

In accordance with an aspect of this embodiment, a selectively rotatable axle system is operably associated with the screw system, wherein the axle system rotates in a perpendicular direction to the rotation of the screw system. In a further aspect of this embodiment, a selectively rotatable second screw system is operably associated with the axle system, wherein the second screw system rotates in a perpendicular direction to the rotation of the axle system, wherein the second screw system rotates in an opposite direction as the screw system. The secondary screw system can also provide a locking function to keep the support and wheel assemblies in a fixed position.

Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposed of illustration only and are not intended to limit the scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

Other advantages of the present invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:

Figure 1 is a schematic view of a fluid container system, with the fluid container system having its wheel assemblies in the deployed position and its landing gear assembly in the deployed position, in accordance with a first embodiment of the present invention;

Figure 2 is a schematic view of a fluid container system/trailer combination operably associated with a truck or tractor, with the fluid container system having its wheel assemblies in the deployed position and its landing gear assembly in the retracted position, in accordance with a second embodiment of the present invention;

Figure 3 is a schematic view of a plurality of fluid container systems stacked one upon another, wherein the respective wheel assemblies and landing gear assemblies are in the retracted position, in accordance with a third embodiment of the present invention;

Figure 4 is a partial schematic view of one of the fluid container system's wheel assemblies in the deployed position, in accordance with a fourth embodiment of the present invention;

Figure 5 is a partial schematic view of one of the fluid container system's wheel assemblies in the retracted position, in accordance with a fifth embodiment of the present invention;

Figure 6 is a perspective view of a chassis of the fluid container system, in accordance with a sixth embodiment of the present invention; Figure 7 is a perspective view of a first alternative chassis of the fluid container system, in accordance with a seventh embodiment of the present invention;

Figure 8 is a perspective view of a second alternative chassis of the fluid container system, in accordance with an eighth embodiment of the present invention;

Figure 9 is a perspective view of a third alternative chassis of the fluid container system, in accordance with a ninth embodiment of the present invention;

Figure 10 is a perspective view of a fourth alternative chassis of the fluid container system, in accordance with a tenth embodiment of the present invention;

Figure 11 is a schematic view of a control system for the landing gear assembly of the fluid container system, in accordance with an eleventh embodiment of the present invention;

Figure 12 is a schematic view illustrating the landing gear assembly of Fig. 11 in the stowed position, in accordance with a twelfth embodiment of the present invention;

Figure 13 is a schematic view of a control system for the wheel assembly of the fluid container system, in accordance with a thirteenth embodiment of the present invention; and Figure 14 is a schematic view illustrating the wheel assembly of Fig. 13 in the retracted position, in accordance with a fourteenth embodiment of the present invention.

The same reference numerals refer to the same parts throughout the various Figures.

DETAILED DESCRIPTION OF THE INVENTION

The following description of the preferred embodiment(s) is merely exemplary in nature and is in no way intended to limit the invention, or uses.

Referring to the Figures generally, a new and improved fluid container system is generally shown at 10. The fluid container system 10 includes a fluid tank 12 that is selectively operable to receive a fluid (such as but not limited to LNG) into and/or dispense a fluid (such as but not limited to LNG) out of the fluid tank 12. As previously noted, the fluid tank 12 is also selectively operable to store and transport the fluid (such as but not limited to LNG), including cryogenic materials.

An optional control system 14 may be provided for selectively controlling the introduction of the fluid (such as but not limited to LNG) into the fluid tank 12 and/or the dispensing of fluid (such as but not limited to LNG) out of the fluid tank 12. The control system 14 may optionally include one or more ports 16, 18, respectively, for receiving and/or dispensing the fluid (such as but not limited to LNG). Alternatively, the ports 16, 18, respectively, may be stand-alone units mounted onto the body 20 of the fluid tank 12. Other conventional components typically associated with control systems for fluid containers, such as but not limited to gauges, valves, actuators, levers, buttons, touchscreens, on-board computers and/or the like, may also be incorporated into the control system 14.

Although the fluid tank 12 is shown as being substantially cylindrical, it should be appreciated that the fluid tank 12 may be configured in any number of different shapes and designs. By way of a non-limiting example, the fluid tank 12 may be configured as a temperature and/or pressure controlled trailer or container that may include insulated and/or reinforced walls such that it is selectively operable to receive, store and/or dispense cryogenic fluids. An example of a fluid tank 12 that would be suitable for use with the present invention is readily commercially available from Chart Industries Inc. (Garfield Heights, Ohio).

The fluid container system 10 may include a chassis system 100 that is selectively operable to not only provide support for the fluid tank 12, but also provide a suitable platform upon which to mount various components that would typically be associated with a conventional trailer system.

The chassis system 100 may include two spaced and opposed bottom side rail members 102, 104, respectively, two spaced and opposed top side rail members 106, 108, respectively, two front rail members 110, 112, respectively, interconnecting the front portion of the bottom side rail members 102, 104, respectively, and the top side rail members 106, 108, respectively, and two rear rail members 114, 116, respectively, interconnecting the rear portion of the bottom side rail members 102, 104, respectively, and the top side rail members 106, 108, respectively. Optional cradle members 118, 120, 122, 124, respectively, may be provided between, and interconnecting, the bottom side rail members 102, 104, respectively. The cradle members 118, 120, 122, 124, respectively, may be provided with at least one curved portion 118a, 120a, 122a, 124a, respectively, formed thereon so as to accommodate a cylindrically-shaped fluid container. By way of a non- limiting example, each of the cradle members 118, 120, 122, 124, respectively, may be provided with a first curved portion 118a, 120a, 122a, 124a, respectively, formed thereon and a second spaced and opposed curved portion 118b, 120b, 122b, 124b, respectively, formed thereon so as to accommodate a cylindrically-shaped fluid container. Although four cradle members are shown in several of the views, it should be appreciated that less than or more than this number of cradle members may be used in the practice of the present invention. An optional top cradle member 126 may be provided between, and interconnecting, the top side rail members 106, 108, respectively. The top cradle member 126 may be provided with at least one curved portion 126a formed thereon so as to accommodate a cylindrically-shaped fluid container. By way of a non-limiting example, the top cradle member 126 may be provided with a first curved portion 126a formed thereon and a second spaced and opposed curved portion 126b formed thereon so as to accommodate a cylindrically-shaped fluid container. Furthermore, in some embodiments of the present invention, it is envisioned that the use of the cradle members can be eliminated completely by securing the fluid container directly to the chassis (or components thereof) and/or providing a solid floor/roof portion to the chassis.

A selectively operable landing gear assembly 200, which may act as a variable height support assembly, may be operably associated with a lower surface of the chassis system 100 and may be located near the front portion of the fluid container system 10. The landing gear assembly 200 may include a foot portion 202 telescopically received within a housing portion 204 such that the foot portion 202 may selectively move up and down relative to the housing portion 204.

A front fixed support system 300, respectively, may be provided near a front portion of the chassis system 100 and a rear fixed support system 400, respectively, may be provided near a rear portion of the chassis system 100. The lengths of the front fixed support system 300 and the rear fixed support system 400 are preferably equal to one another.

Front fixed support system 300 may include a support member 302 that may extend from the top side rail member 106, through the bottom side rail member 102, and then extend a certain distance beyond the bottom side rail member 102. The support member 302 may include reinforced contact points 302a, 302b, respectively, located at the top and bottom ends thereof. Front fixed support system 300 may also include another support member 304 (e.g., spaced and opposed from support member 302) that may extend from the top side rail member 108, through the bottom side rail member 104, and then extend a certain distance beyond the bottom side rail member 104. The support member 304 may include reinforced contact points 304a, 304b, respectively, located at the top and bottom ends thereof. A bottom cross member 306 may interconnect a lower portion of support members 302, 304, respectively. A top cross member 308 may interconnect an upper portion of support members 302, 304, respectively. A brace member 310a may interconnect the lower portion of support member 302 to the bottom side rail member 102. A brace member 310b may interconnect the lower portion of support member 302 to the bottom cross member 306. A brace member 312a may interconnect the lower portion of support member 304 to the bottom side rail member 104. A brace member 312b may interconnect the lower portion of support member 304 to the bottom cross member 306.

Rear fixed support system 400 may include a support member 402 that may extend from the top side rail member 106, through the bottom side rail member 102, and then extend a certain distance beyond the bottom side rail member 102. The support member 402 may include reinforced contact points 402a, 402b, respectively, located at the top and bottom ends thereof. Rear fixed support system 400 may also include another support member 404 (e.g., spaced and opposed from support member 402) that may extend from the top side rail member 108, through the bottom side rail member 104, and then extend a certain distance beyond the bottom side rail member 104. The support member 404 may include reinforced contact points 404a, 404b, respectively, located at the top and bottom ends thereof. A bottom cross member 406 may interconnect a lower portion of support members 402, 404, respectively. A top cross member 408 may interconnect an upper portion of support members 402, 404, respectively. A brace member 410a may interconnect the lower portion of support member 402 to the bottom side rail member 102. A brace member 410b may interconnect the lower portion of support member 402 to the bottom cross member 406. A brace member 412a may interconnect the lower portion of support member 404 to the bottom side rail member 104. A brace member 412b may interconnect the lower portion of support member 404 to the bottom the bottom cross member 406.

An optional underride guard assembly 500 may be provided at a rear portion of the chassis system 100. By way of a non-limiting example, the underride guard assembly 500 may include a guard member 502 and at least one brace member 504 interconnecting the guard member 502 to one or both of the bottom side rail members 102, 104, respectively.

It should be appreciated that the shape and configuration of the chassis system 100 may be varied significantly while still maintaining functionality thereof.

With specific reference to Fig. 8, the afore-described top and bottom cradle members have been eliminated in this embodiment. An optional floor member 510 of the chassis system 100a may be provided to provide the requisite support to the fluid tank 12 (it should be noted that the fluid tank 12 is not depicted in this view for purposes of illustration and clarity).

With specific reference to Fig. 9, again, the afore-described top and bottom cradle members have been eliminated in this embodiment. In this view, the chassis system 100b has been significantly streamlined to include a front chassis portion 520 and a rear chassis portion 530. The front chassis portion 520 includes top rail members 522, 524, respectively, that directly engage the fluid tank 12. The rear chassis portion 530 includes top rail members 532, 534, respectively, that directly engage the fluid tank 12.

With specific reference to Fig. 10, again, the afore-described top and bottom cradle members have been eliminated in this embodiment as well. In this view, the chassis system 100c has been significantly streamlined to eliminate the front and rear portions of the top and bottom rail members (e.g., as compared to the embodiments shown in Figs. 6 and 8). In this view, the fluid tank 12 essentially extends past and "cantilevers" over the front and rear portions of the chassis system 100c. Because there is not front portion of the chassis system 100c, the fluid tank 12 includes a kingpin member 540 formed on a lower portion thereof.

It should also be appreciated that although the depicted chassis systems have been substantially streamlined, it is envisioned that floor, side wall, and roof portions may be added to the chassis systems to at least partially enclose the fluid container should that be desired.

Referring specifically to Fig. 2, the fluid container system 10 is shown as being engaged to a truck/tractor 600 (e.g., via a king-pin 602 (e.g., formed either on the chassis system 100 or, alternatively, on the bottom surface of the fluid tank 12) that may conventionally engage a fifth wheel assembly 604 formed on the truck/tractor 600.

One feature of the present invention is that the fluid container system 10 may include a selectively deployable/retractable wheel assembly system 700. One or more wheel assemblies 702 may be operably associated with the chassis system 100. Although three wheel assemblies are shown in some views, it should be appreciated that either less than or more than three wheel assemblies may be used in the practice of the present invention. By way of a non-limiting example, an embodiment of a chassis having four wheel assemblies 702 is shown in Fig. 7. Another feature of the present invention is that the fluid container system 10 may include a selectively deployable/retractable landing gear assembly 200. That is, while the retraction of the wheel assemblies 702 upwardly allows the stacking feature of the fluid container system 10, the ability of the landing gear assembly 200 and/or wheel assemblies 700 to be selectively deployed and/or retracted, as the case may be, enables the fluid container system 10 to function as a combination container/trailer system. That is, these features of the present invention obviate the need for a separate trailer system to be used, as the fluid container system 10 may function as both a fluid storage system and, simultaneously, as a trailer system. In this aspect, the present invention may provide for the landing gear assembly 200 and/or the wheel assemblies 702 to be capable of being selectively deployed and/or retracted, e.g., during storage or shipment of the fluid container system 10 (e.g., during sea travel, rail travel and/or the like). At an appropriate time (e.g., when the fluid container system 10 is about to placed onto the ground or other surface by a crane or other suitable device), the landing gear assembly 200 and/or the wheel assemblies 702 may then be selectively deployed downwardly (in the case of the wheel assemblies 702) and/or deployed and/or retracted (in the case of the landing gear assembly 200) so as to provide a fully functional fluid container system/trailer combination that may be immediately capable of being engaged to the truck/tractor 600 (see Fig. 2) and immediately driven away.

Referring specifically to Fig. 3, the fluid container system 10, e.g., when the landing gear assembly 200 is deployed and/or retracted and/or the wheel assemblies 702 are retracted, may be placed on any generally flat surface, such as but not limited to a transportation system 775, such as, but not limited to, a ship, intermodal rail container, flatbed truck, another fluid container system, the ground, and/or the like. In this manner, the fluid container system 10 may be handled and shipped in a like manner to that of conventional ocean containers, rail box cars, semi-trailers, and/or the like. By way of a non- limiting example, the fixed support member 302, 304, 402, 404, respectively, may be the contact points against the flat surface (more specifically reinforced contact points 302a, 302b, 304a, 304b, 402a, 402b, 404a, 404b, respectively). That is, the weight of the fluid container system 10 may be borne by the fixed support member 302, 304, 402, 404, respectively (more specifically reinforced contact points 302a, 302b, 304a, 304b, 402a, 402b, 404a, 404b, respectively). In this manner, potential damage to fluid container systems at the bottom of a stack of fluid container systems may be avoided. Furthermore, because the lengths of the front fixed support system 300 and the rear fixed support system 400 are preferably equal to one another, the fluid container system 10 will be, when the wheel assemblies 702 are retracted, level on the ground or when placed atop another chassis system of a fluid container system.

In accordance with one aspect of the present invention, each wheel assembly 702 may include two spaced and opposed wheel units 800, 802, respectively, operably interconnected by an axle member 804. Each of the wheel units 800, 802, respectively, may include a tire member 806a, 806b, respectively, mounted to a wheel hub 808a, 808b, respectively. In another embodiment, an axle member is not required as the wheel units 800, 802, respectively, function as independent units. Other systems such as suspension systems (e.g., shock absorbers), brake systems, electronic sensors, may be provided in connection with each of the wheel units 800, 802, respectively.

In accordance with another embodiment of the present invention, the landing gear assembly and the wheel assembly may be lowered and/or raised automatically (e.g., non- manually). An example of a system for accomplishing this may be found in commonly owned U.S. Patent Application Serial No. 13/284,902, the entire specification of which is expressly incorporated herein.

In accordance with another aspect of the present invention, a deployment system 900 may cooperate with the landing gear assembly 200 and/or the wheel assemblies 702 in a manner that may allow the deployment system 900 to raise and/lower the landing gear assembly 200 and/or the wheel assemblies 702 and then, when desired, lower and/or raise the landing gear assembly 200 and/or the wheel assemblies 702. It should be noted that the deployment system 900 may function in a manner that it may raise and/or lower the landing gear assembly 200 and/or the wheel assemblies 702 simultaneously and/or sequentially. Additionally, it should be appreciated that the landing gear assembly 200 and the wheel assemblies 702 may be caused to move in the same direction at the same time or in opposite directions at the same time, as circumstances warrant.

Referring specifically to Figs. 4 and 5, the deployment system 900 includes a wheel deployment system 1000 that includes at least a pair of air bag members 1002, 1004, respectively, that may be selectively operable to cause a linkage system 1006 to raise and/or lower the wheel assemblies 702. It should be appreciated that several air bag members may be associated with each wheel assembly 702, including, but not limited to multiple air bag members to either raise and/or lower the wheel assembly 702. Air bag member 1004 may be operably associated with a plate member 1008 mounted to a portion of the chassis system 100. Air bag member 1002 may be selectively operable to urge against a plate member 1010 associated with a first linkage member 1012. First linkage member 1012 may be pivotally associated with a pivot point 1014 pivotally associated with a mounting bracket 1016 mounted to another portion of the chassis system 100. A second linkage member 1018 may also be pivotally associated with the pivot point 1014 and the first linkage member 1012. Air bag member 1002 may be operably associated with the second linkage member 1018 as well as plate member 1010 mounted to a portion of the second linkage member 1018 and a plate member 1020 mounted to a portion of the mounting bracket 1016.

When the wheel assemblies 702 are desired to be in the deployed or "lowered" position, as shown in Fig. 4, it is necessary to substantially fully inflate air bag member 1004 and simultaneously substantially fully deflate air bag member 1002 such that air bag member 1004 presses downwardly and urges against plate member 1012 such that the first linkage member 1014 overcomes any force exerted by air bag member 1002 against plate member 1020. In this view, the second linkage member 1018 has been moved upwardly and inwardly (e.g., in an arcuate or linear fashion) toward the mounting bracket 1016, thus causing simultaneous movement of the wheel assemblies 702, e.g., in an arcuate or linear fashion, so as to move the wheel assemblies 702 away from the fluid container system 10.

When the wheel assemblies 702 are desired to be in the retracted or "stowed" position, as shown in Fig. 5, it is necessary to substantially fully inflate air bag member 1002 and simultaneously substantially fully deflate air bag member 1004 such that air bag member 1002 presses upwardly and urges against plate member 1020 such that the second linkage member 1018 overcomes any force exerted by air bag member 1004 against plate member 1020. In this view, the second linkage member 1018 has been moved downwardly and outwardly (e.g., in an arcuate or linear fashion) away from the mounting bracket 1016, thus causing simultaneous movement of the wheel assemblies 702, e.g., in an arcuate or linear fashion, so as to move the wheel assemblies 702 towards the fluid container system 10.

In order to effectuate the inflation and/or deflation of the air bag members 1002, 1004, respectively, at least one and preferably a plurality of compressed air (or other fluid, such as but not limited to liquids and/or gases) canisters (not shown), may be provided. It should be appreciated that each wheel assembly on either side of the fluid container system 10 may be provided with the previously described deployment system.

By way of a non-limiting example, each canister may be provided with pneumatic lines (not shown), that may selectively provide compressed air, when appropriate, to the air bag members 1002, 1004, respectively, as well as the brake system (not shown) of each axle member 804. When it is desired to deflate one of the air bag members 1002, 1004, respectively, (or release the brakes) the canisters may receive the compressed air therefrom. In order to monitor and control the operational parameters (e.g., pressure, flow, leak detection, and/or the like), a control system (not shown) may be operably associated with the canisters. It should be noted that when the fluid container system 10 is engaged to the truck/tractor 600, the canisters may be constantly or periodically recharged (e.g., through the truck's pneumatic systems) to prevent any loss of air pressure within air bag member 1002 to prevent unintended deflation thereof. Additionally, when the fluid container system 10 is engaged to the truck/tractor 600, monitoring and control of the operational parameters (e.g., pressure, flow, leak detection, and/or the like) of the canisters may be done through the truck's control systems.

The deployment system 1000 may also include a landing gear assembly deployment system (not shown) that may include a compressed air (or other gas) canister (not shown) that may be selectively operable (e.g., via a pneumatic line that is associated with a pneumatically powered motor) to cause the foot portion 202 to extend outwardly from the housing portion 204. Alternatively, one, or more, of canisters (not shown) may be used to supply compressed air to the landing gear assembly deployment system, and/or receive compressed air therefrom.

When the landing gear assembly 200 is desired to be in the deployed or "lowered" position, it may be necessary to cause the foot portion 202 to extend outwardly from the housing portion 204.

When the landing gear assembly 200 is desired to be in the retracted or "stowed" position, it may be necessary to permit the foot portion 202 to retract inwardly up into the housing portion 204.

In order to monitor and control the operational parameters (e.g., pressure, flow, leak detection, and/or the like), a control system (not shown) may be operably associated with the canisters. It should be noted that when the fluid container system 10 is engaged to the truck/tractor 600, the canisters may be constantly or periodically recharged (e.g., through the truck's pneumatic systems) to prevent any loss of air pressure within the landing gear assembly 200 to prevent unintended deflation thereof. Additionally, when the fluid container system 10 is engaged to the truck/tractor 600, monitoring and control of the operational parameters (e.g., pressure, flow, leak detection, and/or the like) of the canisters may be done through the truck's control systems.

It should also be appreciated that rather than using compressed air, i.e., a pneumatic system, the present invention can alternatively be practiced with hydraulic fluid, i.e., a hydraulic system, to actuate the deployment system 1000, as previously described. By way of a non-limiting example, hydraulic fluid can be selectively introduced into one fluid container and/or removed from a second fluid container so as to deploy a wheel assembly, i.e., cause the wheel assembly to move downwardly (e.g., in an arcuate or linear fashion) away from the undersurface of the fluid container system 10. By way of another non- limiting example, hydraulic fluid can be selectively introduced into one fluid container and/or removed from a second fluid container so as to stow a wheel assembly, i.e., cause the wheel assembly to move upwardly (e.g., in an arcuate or linear fashion) towards the undersurface of the fluid container system 10.

In accordance with another embodiment of the present invention, the landing gear assembly and the wheel assembly may be lowered and/or raised manually (i.e., without the assistance of pneumatic and/or hydraulic assistance). An example of a system for accomplishing this may be found in commonly owned U.S. Patent No. 8,282,110, the entire specification of which is expressly incorporated herein.

Referring specifically to Figs. 11 and 12, the fluid container system 10 may include a floor or deck portion 1100 that defines a cavity or recess 1102. The intended purpose or function of this recess 1102 will be explained herein. The appropriate or requisite height of the recess 1102, will be dependent, at least in part, on the ability to accommodate or store a stowed support assembly 200 and/or wheel assembly 702 therein, as will be described herein.

Referring again to Fig. 3, 11 and 12, the fluid container system 10, when the support assembly 200 and/or wheel assembly 702 is stowed in the recess 1102, can be placed on any generally flat surface, such as but not limited to a transportation system 775, such as, but not limited to, a ship, rail car, flatbed truck, another cargo container system, the ground, and/or the like. In this manner, the fluid container system 10 can be handled and shipped in a like manner to that of conventional ocean containers, rail box cars, semi-trailers, and/or the like.

One feature of the present invention is that the fluid container system 10 includes a selectively deployable landing gear assembly 200 and/or wheel assembly 702. That is, while the stowability or storability of the support assembly 200 and/or wheel assembly 702 in the recess 1102 allows the stacking feature of the fluid container system 10, the ability of the landing gear assembly 200 and/or wheel assembly 702 to be deployed, enables the fluid container system 10 to function as a combination container/trailer system. That is, this feature of the present invention obviates the need for a separate trailer system to be used, as the fluid container system 10 can function as both a fluid container system and, simultaneously, as a trailer system. In this aspect, the present invention provides for the landing gear assembly 200 and/or the wheel assembly 702 being capable of being stowed within the recess 1102, formed in the underside of the fluid container system 10, e.g., during storage or shipment of the fluid container system 10 (e.g., during sea travel or rail travel). At an appropriate time (e.g., when the fluid container system 10 is about to be placed onto the ground or other surface by a crane or other suitable device), the landing gear assembly 200 and/or the wheel assembly 702 can then be selectively deployed downwardly and/or outwardly from the recess 1102 of the underside of the fluid container system 10 so as to provide a fully functional fluid container system/trailer combination that is immediately capable of being engaged to a truck/tractor 600 and immediately driven away. It should also be noted that additional cargo, supplies, tools, and/or the like, can be stored in the recess 1102, as well.

In accordance with another aspect of the present invention, a deployment system 1200 cooperates with the landing gear assembly 200 and/or the wheel assembly 702 in a manner that allows the deployment system 1200 to raise the landing gear assembly 200 and/or the wheel assembly 702 and then, when desired, lower the support assembly 200 and/or the wheel assembly 702. It should be noted that the deployment system 1200 can function in a manner that it can raise and/or lower the landing gear assembly 200 and/or the wheel assembly 702 simultaneously and/or sequentially.

In accordance with still another aspect of the present invention, the deployment system 1200 can include a screw system 1300 that, when rotated in a first direction is operable to raise the support assembly 200 and/or the wheel assembly 702 and then, when rotated in a second direction (e.g., opposite of the first direction) is capable of lowering the support assembly 200 and/or the wheel assembly 702. Referring specifically to Figs. 13 and 14, the rotation of the screw system 1300 can be accomplished by inserting a rotation member (not shown), such as but not limited to a handle, crank, or other suitable device, into a keyed insertion portion 1302 (e.g., formed on the rear surface of the fluid container system 10) of the screw system 1300 and rotating in the appropriate direction. Of course, the rotation of the screw system 1300 can be accomplished by any number of conventional methods, including using manually or automatically controlled power devices, such as geared motors, pneumatically actuated systems, hydraulically actuated systems, and/or the like.

In accordance with yet another aspect of the present invention, an axle system 1400 is provided that is operably associated with the screw system 1300 such that, as the screw system 1300 is rotated (e.g., in a clockwise or counter-clockwise manner), it can translate the rotational movement of the screw system 1300 into rotation (e.g., in a forward or reverse manner) of the axle system 1400 that is perpendicular to the rotation of the screw system 1300. By way of a non-limiting example, this relative movement of the axle system 1400 by the screw system 1300 can be accomplished through a rack and pinion system, differential system, or any other number of conventional devices and/or methods. It should be noted that the axle system 1400 does not interconnect the individual wheels on either side of the fluid container system 10, as would be the case with a conventional trailer system.

In accordance with still yet another aspect of the present invention, a secondary screw system 1500 is provided that is operably associated with the wheel assembly 702 such that, as the axle system 1400 is rotated (e.g., in a forward or reverse manner), it can translate the rotational movement of the axle system 1400 into rotation (e.g., in a clockwise or counter-clockwise manner) of the secondary screw system 1500 that is perpendicular to the rotation of the axle system 1400, thus raising or lowering the wheel assembly 702. The secondary screw system 1500 can also provide a locking function to keep the wheel assembly 702 in a fixed position. By way of a non-limiting example, this relative movement of the secondary screw system 1500 by the axle system 1400 can be accomplished through a rack and pinion system, a differential system, or any other number of conventional devices and/or methods. By way of a non-limiting example, the rotational direction of the screw system 1300 and the secondary screw system 1500 may be configured to be opposite of one another. For example, when the screw system 1300 is rotated in a clockwise direction, the secondary screw system 1500 can be caused to rotate in counter-clockwise direction by appropriate rotation of the axle system 1400. Likewise, when the screw system 1300 is rotated in a counter-clockwise direction, the secondary screw system 1500 can be caused to rotate in clockwise direction by appropriate rotation of the axle system 1400 (e.g., the respective rotation directions would all be reversed). By way of a non-limiting example, the rotation of the secondary screw system 1500 can be accomplished by inserting a rotation member (not shown), such as but not limited to a handle, crank, or other suitable device, into another keyed insertion portion (not shown), e.g., formed on the rear surface 54 of the fluid container system 10, of the screw system 1300 and rotating in the appropriate direction. For example, this arrangement can be useful in the event that free movement of the screw system 1300 is compromised or the screw system 1300 becomes inoperational.

It should also be noted that the screw system 50 can be configured to only unlock the axles and supports from a locked position (or vice versa), and that the secondary screw system 58 can be configured to only raise or lower the appropriate wheel or support assemblies with respect to the recess (or vice versa).

In accordance with an alternative embodiment of the present invention, the operation of the deployment system 1200 with respect to the support system 200 can be more simplified than that of the wheel assembly 702. For example, the use of a secondary screw system can be eliminated (with respect to the support assembly 200) and the support assembly 200 can be raised or lowered by appropriate rotation of the axle system 1400 alone (e.g., in response to appropriate rotation of the screw system 1300). It should be noted that the same screw system 1300 can be used to raise or lower both the support assembly 200 as well as the wheel assembly 702. The screw system 1300 can also provide a locking function to keep the support assembly 200 and/or the wheel assembly 702 in a fixed position.

In accordance with another alternative embodiment of the present invention, the operation of the deployment system 1200 with respect to the support system 200 can be more complex than that of the wheel assembly 702. For example, while the use of a secondary screw system is also eliminated in this embodiment (with respect to the support assembly 200), the use of multiple axle systems (not shown) may be used to raise or lower the support assembly 200 (e.g., in response to appropriate rotation of the screw system 1300). Again, it should be noted that the same screw system 1300 can be used to raise or lower both the support assembly 200 as well as the wheel assembly 702. The screw system 1300 can also provide a locking function to keep the support assembly 200 and/or the wheel assembly 702 in a fixed position.

With respect to the wheel assembly 702, because in some embodiments there is no cross-axle as in conventional trailers, each wheel, or wheel grouping in the case of multi- wheel assemblies, is a self-contained unit 1600 that includes, primarily, a brake assembly (e.g., employing pneumatic or air brakes), an axle assembly (e.g., for allowing the wheel to freely rotate thereabout), and a suspension system (e.g., employing a shock absorber). By way of a non-limiting example, the brake system of the truck/tractor 600 can be connected to an air line (not shown) having a port (not shown) on the forward portion of the fluid container system 10 and ultimately connected to each of the air brakes lines of the brake systems of the individual wheels of the wheel assembly 702. An example of a self- contained brake, axle, and suspension system for a wheel assembly that would be suitable for use with the present invention is readily commercially available from Tridec BV (Ekkersrijt, The Netherlands) under the product designation Type LV-O. However, any support or wheel assembly that can be rotated up and down, in or out, or otherwise, relative to the underside or lower portion of a cargo container, would be suitable for use with the present invention. Furthermore, it should be appreciated that the present invention can be practiced with either less than or more than this number of wheel pairs shown.

The support assembly 200 and the wheel assembly 702, when in the deployed position, can be provided with a mechanism such as a slot, groove, detent, stop, and/or the like (not shown) to lock the wheel assembly 702 in place for obvious safety reasons. Furthermore, the deployment system 1200 can be provided with a locking mechanism (not shown) to prevent access to or rotation of the screw system 1300 when the wheel assembly 702 is in the deployed position (e.g., to prevent unintentional retraction to the stowed position) or in the stowed position (e.g., to prevent unintentional deployment).

Other well-known elements of fluid containers, such as, but not limited to, brake lights, signal lights, doors, door handles, door locks, and/or the like, which are conventional in nature, will not be described herein but may be used in conjunction with the fluid container system of the present invention.

While the invention has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes can be made and equivalents can be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications can be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

CLAIMS What is claimed is:

1. A fluid container system, comprising:

a fluid tank;

a wheel assembly operably associated with a lower portion of the fluid tank; and a deployment system selectively operable to raise the wheel assembly towards the lower portion of the fluid tank and lower the wheel assembly away from the lower portion of the fluid tank.

2. The fluid container system according to claim 1, further comprising an inflation/deflation system operably associated with the deployment system.

3. The fluid container system according to claim 2, wherein the inflation/deflation system includes a fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move towards the lower portion of the liquid natural gas container or to move away from the lower portion of the liquid natural gas container.

4. The fluid container system according to claim 3, wherein the inflation/deflation system includes a second fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move towards the lower portion of the fluid tank or to move away from the lower portion of the fluid tank.

5. The fluid container system according to claim 2, wherein the inflation/deflation system includes a first fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move towards the lower portion of the fluid tank and a second fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move away from the lower portion of the fluid tank.

6. The fluid container system according to claim 2, further comprising a control system operably associated with the inflation/deflation system.

7. The fluid container system according to claim 6, wherein the control system is selectively operable to control the flow of a fluid either into or out of a first fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move towards the lower portion of the fluid tank and a second fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move away from the lower portion of the fluid tank.

8. The fluid container system according to claim 2, wherein the inflation/deflation system is either pneumatically actuated or hydraulically actuated.

9. The fluid container system according to claim 5, wherein either the first or second fluid reservoir system comprises an air bag system.

10. The fluid container system according to claim 2, further comprising at least one support member that is operably associated with the lower portion of the fluid tank.

11. The fluid container system according to claim 10, wherein the support member is selectively operable to permit the fluid tank to be placed atop another support member operably associated with an upper portion of another fluid tank when the wheel assembly is raised towards the lower portion of the fluid tank.

12. The fluid container system according to claim 11, wherein when the fluid tank is placed atop the other fluid tank, only the support member contacts the support member of the other fluid tank and the wheel assembly does not contact the other fluid tank.

13. The fluid container system according to claim 1, wherein the wheel assembly is selectively pivotable about an axis.

14. The fluid container system according to claim 1, wherein the wheel assembly is selectively operable to pivot arcuately downwardly away from the lower portion of the fluid tank.

15. The fluid container system according to claim 1, wherein the wheel assembly is selectively operable to pivot arcuately upwardly towards the lower portion of the fluid tank.

16. A fluid container system, comprising:

a fluid tank;

a wheel assembly operably associated with a lower portion of the fluid tank;

a deployment system selectively operable to raise the wheel assembly towards the lower portion of the fluid tank and lower the wheel assembly away from the lower portion of the fluid tank;

an inflation/deflation system operably associated with the deployment system; and at least one support member that is operably associated with the lower portion of the fluid tank; wherein the support member is selectively operable to permit the fluid tank to be placed atop another support member operably associated with an upper portion of another fluid tank when the wheel assembly is raised towards the lower portion of the fluid tank; wherein the inflation/deflation system includes a first fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move towards the lower portion of the fluid tank and a second fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move away from the lower portion of the fluid tank.

17. The fluid container system according to claim 16, further comprising a control system operably associated with the inflation/deflation system, wherein the control system is selectively operable to control the flow of a fluid either into or out of the first or second fluid reservoir.

18. The fluid container system according to claim 16, wherein the inflation/deflation system is either pneumatically actuated or hydraulically actuated.

19. The fluid container system according to claim 16, wherein either the first or second fluid reservoir system comprises an air bag system.

20. A fluid container system, comprising:

a fluid tank;

a wheel assembly operably associated with a lower portion of the fluid tank;

an inflation/deflation system operably associated with the deployment system;

at least one support member that is operably associated with the lower portion of the fluid tank;

wherein the support member is selectively operable to permit the fluid tank to be placed atop another support member operably associated with an upper portion of another fluid tank when the wheel assembly is raised towards the lower portion of the fluid tank; wherein the inflation/deflation system includes a first fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move towards the lower portion of the fluid tank and a second fluid reservoir system that is selectively operable to either inflate or deflate so as to cause the wheel assembly to move away from the lower portion of the fluid tank;

a control system operably associated with the inflation/deflation system, wherein the control system is selectively operable to control the flow of a fluid either into or out of the first or second fluid reservoir;

wherein the inflation/deflation system is either pneumatically actuated or hydraulically actuated;

wherein either the first or second fluid reservoir system comprises an air bag system.