Conventional fluid containers, including both rigid and compliant containers, come in a variety of shapes and sizes with a variety of features, some of which accommodate a fluid phase change within the container. For example, some fluids (e.g., medical fluids) are stored and transported in compliant bags, which offer flexibility in the event the fluid freezes, but poor protection from physical puncture of the bag, which may contaminate the fluid. Other fluids are stored and transported in rigid containers, which may provide better protection from physical puncture, but may fracture due to expansion and contraction of the fluid as it freezes and thaws. Still other fluids are stored in a combination container (e.g., a flexible bag inside a rigid container), which may offer some of the benefits of each type of container, but with the added expense of redundant storage containers for a defined volume of fluid.
Each of the conventional rigid, compliant, and combined fluid containers lack a combination of features that comprehensively protects the container from fluid phase changes and external threats to the container while permitting easy physical manipulation of the container, including freeze/thaw resistance, puncture resistance, and input/output assemblies that are both protected and easy to use, for example.
Implementations described and claimed herein address the foregoing problems by providing a fluid container comprising: two or more matched pairs of recesses in a body of the container, each recess in a matched pair oriented on opposing sides of the container, the recesses configured to interface with hardware to physically manipulate the container; and two or more stiffening ribs, each stiffening rib extending between two of the recesses in the body of the container.
Implementations described and claimed herein address the foregoing problems by further providing a method of using a fluid container comprising: interfacing each of two or more matched pairs of recesses in a body of the container with manipulation hardware, each recess in a matched pair oriented on opposing sides of the container; and suspending the container from the recesses, wherein each of two or more stiffening ribs extend between two of the recesses in the body of the container.
Other implementations are also described and recited herein.
The container 100 includes a body 101 that is depicted as generally a rectangular box, but may be another volume-enclosing shape or combination of shapes with one or more of the features described in detail below. Further, the container 100 may be any size (e.g., 2 liters to 200 liters) and used for storing any fluid (e.g., medical or pharmaceutical fluids). Still further, the container 100 may be made of any suitable material (e.g., various plastics (polyethylene), metals, or composite materials) using any suitable manufacturing process (e.g., molding (rotational molding, injection molding, extrusion molding, blow molding), welding, etc.). Further still, the container 100 is rigid in that it holds a defined shape when not under stress imposed by the fluid stored therein. The rigid container 100 may deform to accommodate a phase change of the fluid (e.g., the container may bow outward when the fluid freezes). Further yet, the container 100 may be configured for a single use (i.e., fill and discharge once), multiple uses (i.e., repeated fills and discharges), short-term storage, and/or long term storage of the fluid.
The container 100 is generally defined as having an exterior length 122, exterior height 124, and exterior width 126 and a relatively constant wall thickness (not shown). In other implementations, the wall thickness may vary such that higher stress areas of the container 100 have thicker walls for more strength and lower stress areas of the container 100 have thinner walls for more flexibility and cost/weight savings. In order to achieve the desired freeze/thaw performance, the container 100 has length/width and height/width aspect ratios that vary from 4 to 10. The relatively high aspect ratio dimensional characteristics of the container 100 allows the fluid therein to freeze relatively quickly on outside surfaces mostly defined by the width of the container 100. Within the interior of the container 100, the last part of the fluid to freeze pushes upward, displacing some headspace without damaging or significantly deforming the container 100. In some implementations, the container 100 is designed with sufficient strength to withstand some stress induced by the fluid freezing (see e.g., stiffening ribs, discussed in detail below) and may allow some flexure to also accommodate the stress induced by the fluid freezing within the container 100.
The container 100 further includes a pair of input/output assemblies 102, 104 that are used for filling and discharging the container 100 as described in detail below with reference to
Further, the input/output assemblies 102, 104 are recessed into the body 101 (see recesses 216, 218 of
The container 100 also includes a pair of troughs 136, 138 that are used in conjunction with the input/output assemblies 102, 104, respectively. For example, when the input/output assembly 104 is used to drain the fluid from the container 100, the container 100 may be rotated such that the trough 138 is oriented at the bottom of the container 100 (see e.g.,
The container 100 also includes an array of manipulation recesses (e.g., recess 106) in the body 101. The interior of each of the recesses is fully closed such that the container 100 is sealed from the atmosphere aside from the input/output assemblies 102, 104. The container 100 may be physically secured and manipulated via the recesses. For example, pins or rods (not shown) may extend into two or more of the recesses and the container 100 may be moved or manipulated by moving the pins or rods in unison or with reference to one another.
In another example, straps (not shown) may extend into one or more of the recesses that permit the container 100 to be moved or manipulated by moving the straps in unison or with reference to one another. While eight cylindrical recesses are depicted extending into the container 100, the recesses may be any size, shape, or number appropriate for the intended movement or manipulation of the container 100. Further, the recesses may taper through the width of the container 100 for ease of manufacturing. The recesses may also each include a countersink or counterbore surrounding the individual recesses (see e.g.,
In some implementations, the recesses do not extend completely through the container body 101. As a result, the recesses are utilized by pressing corresponding pins from each side of the container body 101 into a recess to manipulate the recess. The recesses that may or may not extend entirely through the container body 101 are collectively referred to herein as lifting points.
The container 100 also includes stiffening ribs (e.g., rib 107) that provide additional stiffness to the sidewalls of the container 100. The stiffening ribs are formed channels in the body 101 of the container 100 that may protrude inward relative to the surrounding body 101 (as shown herein), or protrude outward relative to the surrounding body 101. Further, the stiffening ribs approach the recesses, but stop short of connecting the recesses to preserve the structural integrity of the recesses and avoid introducing any rapid transitions that may lead to reduced thickness of material in some manufacturing processes. In other implementations, the stiffening ribs connect the recesses, which may provide additional strength to the recesses when they are used as lifting points. Use of the stiffening ribs to increase strength at the recesses may also increase localized stiffness and/or rigidity at the recesses.
The pair of input/output assemblies 202, 204 are used for filling and discharging the container 200 as described in detail below with reference to
The container 200 still further includes input/output recesses 216, 218 that recess the input/output assemblies 202, 204 into the body 201 to help protect against impact damage during manipulation of the container 200 or manipulation of equipment or other objects in close proximity to the container 200. Recessing the input/output assemblies 202, 204 increases the likelihood that an impact sustained by the container 200 is absorbed by the body 201 rather than the input/output assemblies 202, 204 themselves.
The container 200 also includes a pair of troughs 236, 238 that are used in conjunction with the input/output assemblies 202, 204, respectively. For example, when the input/output assembly 204 is used to drain the fluid from the container 200, the container 200 may be rotated such that the trough 238 is oriented at the bottom of the container 200 (see e.g.,
The container 200 also includes an array of manipulation recesses (e.g., recess 206) in the body 201. The interior of each of the recesses is fully closed such that the container 200 is sealed from the atmosphere aside from the input/output assemblies 202, 204. The container 200 may be physically secured and manipulated via the recesses.
While eight cylindrical recesses are depicted in the container 200, the recesses may be any size, shape, or number appropriate for the intended movement or manipulation of the container 200. The recesses may also each include a countersink or counterbore (e.g., countersink or counterbore 208) surrounding the individual recesses. The countersink or counterbore may increase localized stiffness and/or rigidity at the recesses and may also serve to guide manipulation hardware to the recesses when the manipulation hardware is interfaced with the container 200. The countersink or counterbore may also serve to recess a portion of the manipulation hardware within the surrounding body 201. In implementations that utilize countersinks at each recess, the countersinks may serve to aid alignment with the manipulation hardware that may be imprecisely directed at the recesses (i.e., a self-centering feature).
Further, each recess may have a draft angle that narrows the recess toward a center of the container 200. For example, recess 206 has a countersink 208. At a base of the countersink 208, the recess 206 has recess diameter 232. The recess 206 has a further draft angle that concentrically narrows the recess 206 to recess diameter 234, which is less than recess diameter 232 by virtue of the draft angle. In various implementations, the draft angle may vary from 1-10 degrees. In addition, the recess diameter 234 may exist at a center of the overall width of the container 200, with the draft angle narrowing the recess diameter from recess diameter 232 to recess diameter 234 from each side of the container 200 in a mirror image (only one side of the container 200 is shown in
The container 200 also includes stiffening ribs (e.g., rib 207) that provide additional stiffness to the sidewalls of the container 200. The stiffening ribs are formed channels in the body 201 of the container 200 that may protrude inward relative to the surrounding body 201 (as shown herein), or protrude outward relative to the surrounding body 201. Further, the stiffening ribs approach the recesses, but stop short of connecting the recesses to preserve the structural integrity of the recesses and avoid introducing any rapid transitions that may lead to reduced thickness of material in some manufacturing processes. Further, the stiffening ribs may be used to further reinforce the input/output recesses 216, 218 as shown. In other implementations, the stiffening ribs connect the recesses, which may provide additional strength to the recesses when they are used as lifting points. Use of the stiffening ribs to increase strength at the recesses may also increase localized stiffness and/or rigidity at the recesses.
In some implementations, the stiffening ribs include flared ends (e.g., flared end 228) that provide smoother transitions to the surrounding body 201. As a result, the flared ends may reduce the occurrence of stress concentrations in the body 201 and reduce localized thinning of material that would otherwise occur when manufacturing the container 200 with more abrupt transitions. In other implementations, the stiffening ribs do not include flared ends.
The container 200 is depicted mostly full with the fluid 214 existing below the fluid level 210 and the small headspace 212 existing above the fluid level 210. The container 200 is capable of storing any fluid, however, the container 200 is particularly adapted to store fluids under pressure and temperature conditions where a phase change between a solid phase and a liquid phase is possible or expected. The fluid 214 may fill any percentage of the container 200 up to a 100% fill state by volume. In some implementations, the fluid 214 is not permitted to fill the container 200 up to the 100% fill state in a liquid phase to provide sufficient room for expansion as the liquid phase fluid turns into a solid phase (i.e., the fluid 214 freezes). The fluid 214 may also not be permitted to fill the container 200 to a level that partially or fully occupies the input/output recesses 216, 218 to avoid potentially damaging the input/output assemblies 202, 204 during a phase change.
The remaining percentage of the container 200 that is not filled with the fluid 214 is referred to as the headspace 212. For example, the container 200 may store 90% liquid water or an aqueous solution (i.e., a solution with water as the primary solvent) and 10% atmospheric or other gases. Some portion of the headspace 212 is allowed to adjust during filling and discharging operations as well as during freezing and thawing of the fluid 214 within the container 200.
The container 300 includes an array of recesses 303, 305, 306, 309 in the body 301. In various implementations, the recesses are arranged in matched pairs. For example, recesses 303, 305 are a matched pair of recesses in opposing sides of the container 300. Similarly, recesses 306, 309 are a matched pair of recesses in opposing sides of the container 300. The interior of each of the recesses is fully closed such that the container 300 is sealed from the atmosphere aside from input/output ports (e.g., input/outlet port 320). The container 300 may be physically secured and manipulated via the recesses.
While Section A-A illustrates four example cylindrical recesses in the container 300, the recesses may be any size, shape, or number appropriate for the intended movement or manipulation of the container 300. The recesses may also each have a countersink (e.g., countersink 308) surrounding the individual recesses. The countersink 308 may be straight or rounded in either a convex (as shown) or concave orientation. In other implementations, counterbores may be included in place of the depicted rounded countersinks.
The countersinks may increase localized stiffness and/or rigidity at the recesses and may also serve to guide manipulation hardware to the recesses when the manipulation hardware is interfaced with the container 300, and may serve to recess a portion of the manipulation hardware within the surrounding body 301. The countersinks may also serve to aid alignment with the manipulation hardware that may be imprecisely directed at the recesses (i.e., a self-centering feature).
Further, each recess may have a draft angle that narrows the recess toward a center of the container. For example, recess 306 has a countersink 308. At a base of the countersink 308, the recess 306 has recess diameter 332. The recess 306 has a further draft angle that concentrically narrows the recess 306 to recess diameter 334, which is less than recess diameter 332 by virtue of the draft angle. The recess diameter 334 exists at a center of the overall width of the container 300, with the draft angle narrowing the recess diameter from recess diameter 332 to recess diameter 334 from each side of the container 300 in a mirror image, as shown. In other implementations, the draft angle may extend through the entire width of the container 300 and thus the recess diameters 332, 334 exist at opposing surfaces of the container body 301. In various implementations, the draft angle aids in manufacturing of the container 300.
The recesses may not extend completely through the container body 301, and thus have a corresponding base structure (e.g., base structure 333). In some implementations, the base structure is shared between matched pairs of recesses. In other implementations, each recess has its own base structure distinct from the base structure of an opposing recess. In still other implementations, the recesses extend entirely through the container body 301, thus linking matched pairs of recesses through the container body 301.
The input/output assembly 402 is used for filling and discharging the container 400. A second similar input/output assembly (not shown) may also be included in the container 400 as shown in
The input/output assembly 402 includes an input/output port 420, through which a straw 440 extends to a point in close proximity to a bottom of a trough 436. A second similar trough (not shown) may also be included in the container 400 as shown in
The straw 440 extends out of the input/output port 420 and terminates with a barb (not shown, see e.g., barb 552 of
A tube 444 is attached to the barb and extends away from the input/output port 420. The tube 444 is depicted with a y-configuration that splits access to the input/output port 420 into two separate tube sections that each terminate distal to the input/output port 420. In various implementations, the tube 444 may be silicone, rubber, or plastic in construction, depending on the intended use of the container 400. In other implementations, the tube 444 lacks the depicted y-configuration and merely terminates with a single end distal from the input/output port 420.
The distal ends of the tube 444 are each capped with a connector (e.g., an aseptic connector 446) that interfaces with equipment intended to withdraw the fluid from the container 400. In some implementations, the connectors are merely removable caps on the tube 444 that prevent the fluid from inadvertently leaking from the container 400. Still further, the connectors may not be airtight so that atmospheric air and/or fluid vapor is permitted to enter and exit the container 400 as the fluid changes phase (and thus volume) within the container 400.
The container 400 still further includes an input/output recess 416 that recesses the input/output assembly 402 into the body 401 to help protect against impact damage during manipulation of the container 400 or manipulation of equipment or other objects in close proximity to the container 400. A second similar input/output recess (not shown) may also be included in the container 400 as shown in
The container 400 also includes stiffening ribs (e.g., rib 407) that provide additional stiffness to the sidewalls of the container 400. The stiffening ribs are formed channels in the body 401 of the container 400 that may protrude inward relative to the surrounding body 401 (as shown herein), or protrude outward relative to the surrounding body 401. Further, the stiffening ribs approach the recesses, but stop short of connecting the recesses. Still further, the stiffening ribs may be used to further reinforce the input/output recess 416 as shown. In other implementations, the stiffening ribs connect the recesses.
The input/output assembly 402 further includes a retainer bracket 448 that includes clips (e.g., clip 450) that secure the tube 444 and connectors within the input/output recess 416. More specifically, the retainer bracket 448 clips onto stiffening ribs that run on opposing sides of the container 400 and adjacent the input/output recess 416, as shown. In other implementations, the retainer bracket 448 may be otherwise mechanically or adhesively fastened to the body 401 of the container 400. The clips are secured to the retainer bracket 448 and clip onto the tube 444 to hold the tube 444 in place while the input/output assembly 402 is not in use. A user may remove the tube 444 from the clips as needed to utilize the connectors to withdraw fluid from the container 400 or add fluid to the container 400. In various implementations, the retainer bracket 448 and associated clips are of a metal or plastic construction.
Some of the clips may also be used to secure a sample (e.g., a tailgate sample 441) of the fluid stored within the container 400 for testing and/or overall container 400 content validation purposes. More specifically, the tailgate sample 441 is a closed container separate from the container 400 that stores a sample of the fluid stored within the container 400. The tailgate sample 441 may also include a sample port 443 that may be secured to one of the caps that facilitates access to the tailgate sample 441.
The input/output assembly 502 includes an input/output port 520, through which a straw 540 extends to a point in close proximity to a bottom of a trough 536. In other implementations, the straw 540 turns approximately 90 degrees at the bottom of the trough 536 so that the end of the straw 540 runs generally parallel to the trough 536. This may reduce turbulence within the trough 536 when fluid is added or removed from the container via the straw 540. The straw 540 extends out of the input/output port 520 and terminates with a barb 552. A cap 542 secures the straw 540 to the container and seals the straw 540 against the input/output port 520. A tube 544 is attached to the barb 552 and extends away from the input/output port 520. A distal end of the tube 544 is capped with connector 546 that interfaces with equipment intended to withdraw the fluid from the container.
The input/output assembly 502 further includes a retainer bracket 548 that includes clips (e.g., clip 550) that secure the tube 544 and connector 546. More specifically, the clips are secured to the retainer bracket 548 and clip onto the tube 544 to hold the tube 544 in place while the input/output assembly 502 is not in use. Some of the clips may also be used to secure a sample (e.g., a tailgate sample 541) of the fluid stored within the container for testing and/or verification purposes.
The locking mechanism 654 includes two halves 656, 658 in a clamshell arrangement, with pass-throughs 660, 661, 662 acting to selectively connect the halves 656, 658 together. In other implementations, a hinge (e.g., a live hinge, not shown) may fixedly connect one side of the two halves 656, 658 together, while one or more of the pass-throughs 660, 661, 662 selectively connect the other side of the two halves 656, 658 together. For example, clasps (not shown) may pass through the pass throughs 660, 661, 662 to selectively secure the two halves 656, 658 together. In some implementations, the clasps extending through the pass throughs 660, 661, 662 creates a tamper-proof connection that would reveal any unauthorized access to the cap secured by the locking mechanism 654.
The halves 656, 658 surround and partially enclose the cap. In other implementations, protrusions (not shown) from the cap interface with a scalloped or otherwise contoured inner pattern (not shown) of the locking mechanism 654 to prevent the cap from rotating with respect to the locking mechanism 654 when the locking mechanism 654 is installed on the cap. Further, the locking mechanism 654 includes a rear flange 668 that prevents the locking mechanism 654 from sliding off the cap. Still further, the locking mechanism 654 includes mechanical stops 670, 672 that engage with an adjacent fluid container surface (see e.g., fluid container 700 of
The input/output assembly 702 is used for filling and discharging the container 700. A second similar input/output assembly (not shown) may also be included in the container 700 as shown in
The input/output assembly 702 includes an input/output port (not shown), through which fluid is added and/or removed from the container 700. A pair of tubes 744 extend from the input/output port and are secured to the input/output port via a cap 742. In various implementations, there may be greater or fewer tubes than the depicted two tubes extending from the input/output port. The cap 742 screws onto the input/output port to secure the tubes 744 to the container 700 and seal the tubes 744 to the input/output port. In some implementations, the cap 742 includes protrusions (not shown) that match and selectively interface with the locking mechanism 754 preventing the cap 742 from rotating with reference to the locking mechanism 754.
As described above with regard to
The distal ends of the tubes 744 are each capped with a connector (e.g., an aseptic connector 746) that interfaces with equipment intended to withdraw the fluid from the container 700. In some implementations, the connectors are merely removable caps on the tubes 744 that prevent the fluid from inadvertently leaking from the container 700. Still further, the connectors may not be airtight so that atmospheric air and/or fluid vapor is permitted to enter and exit the container 700 as the fluid changes phase (and thus volume) within the container 700.
The container 700 still further includes an input/output recess 716 that recesses the input/output assembly 702 into the body 701 to help protect against impact damage during manipulation of the container 700 or manipulation of equipment or other objects in close proximity to the container 700. A second similar input/output recess (not shown) may also be included in the container 700 as shown in
The container 700 also includes stiffening ribs (e.g., rib 707) that provide additional stiffness to the sidewalls of the container 700. The stiffening ribs are formed channels in the body 701 of the container 700 that may protrude inward relative to the surrounding body 701 (as shown herein), or protrude outward relative to the surrounding body 701. Further, the stiffening ribs may be used to further reinforce the input/output recess 716.
Further, the shroud 874 has an opening that permits the shroud 874 to be slipped onto the container (e.g., a bottom plan of the depicted shroud 874). The shroud 874 includes an array of pass-through apertures (e.g., aperture 806) that correspond in size and location to recesses in the container when the shroud 874 is in place on the container. As a result, the recesses in the container are still accessible whether or not the shroud 874 is in place on the container. In some implementations, the shroud 874 includes one or more access panels (e.g., panel 876) that permit access to protected features of the container (e.g., input/output assemblies) without removing the shroud 874. In various implementations, the access panels may be open apertures, hinged doors, slip-fit panels, etc.
Further, the shroud 974 has an opening that permits the shroud 974 to be slipped onto the top of the container 900 (e.g., a bottom plan of the depicted shroud 974). The shroud 974 includes an array of pass-through apertures (e.g., aperture 906) that correspond in size and location to recesses in the container 900 when the shroud 974 is in place on the container 900. As a result, the recesses in the container 900 are still accessible whether or not the shroud 974 is in place on the container 900. In various implementations, matching apertures in the shroud 974 and the container 900 may be used to lock the shroud 974 and the container 900 by passing a security cable loop there through.
The container 1000 in the fill orientation is rotated 10 degrees clockwise as compared to the freeze/thaw orientation of container 200 of
The fluid 1014 fills the container 1000 via the input/output assembly 1002 as illustrated by arrow 1078. This causes the fluid line 1010 to rise, as illustrated by arrow 1080 and fluid vapor to exit the container 1010 via the input/output assembly 1004, as illustrated by arrow 1082. More generally, as the container 1000 is filled with the fluid 1014 via the input/output assembly 1002, the fluid level 1010 rises and the headspace 1012 shrinks. Headspace gas that the fluid 1014 displaces as it fills the container 1000 is discharged from the container 1000 via the input/output assembly 1004. In some implementations, the fluid 1014 is not allowed to completely fill the container 1000, thus always leaving some headspace 1012 to accommodate freeze expansion within the container 1000.
The container 1100 in the discharge orientation is rotated 100 degrees clockwise as compared to the freeze/thaw orientation of container 200 of
The fluid 1114 exits the container 1100 via the input/output assembly 1102 as illustrated by arrow 1178. This causes the fluid line 1110 to drop, as illustrated by arrow 1180, and atmospheric air or other gases to enter the container 1110 via the input/output assembly 1104, as illustrated by arrow 1182. More generally, as the fluid 1114 is drained from the container 1100 via the input/output assembly 1102, the fluid level 1110 drops and the headspace 1112 shrinks. Atmospheric air or other gases enter the container 1100 via the input/output assembly 1104 replace the fluid 1114 as it is discharged from the container 1100.
The container 1200 also includes an array of manipulation recesses (e.g., recess 1206) in the body 1201. The interior of each of the recesses is fully closed such that the container 1200 is sealed from the atmosphere aside from the input/output assemblies. The container 1200 may be physically secured and manipulated via the recesses.
While eight cylindrical recesses are depicted in the container 1200, the recesses may be any size, shape, or number appropriate for the intended movement or manipulation of the container 1200. The recesses may also each include a countersink or counterbore (e.g., counterbore 1208) surrounding the individual recesses. The countersink or counterbore may increase localized stiffness and/or rigidity at the recesses and may also serve to guide manipulation hardware to the recesses when the manipulation hardware is interfaced with the container 1200. The countersink or counterbore may also serve to recess a portion of the manipulation hardware within the surrounding body 1201. In implementations that utilize countersinks at each recess, the countersinks may serve to aid alignment with the manipulation hardware that may be imprecisely directed at the recesses (i.e., a self-centering feature).
Further, each recess may have one or more draft angles that narrow the recess toward a center of the container 1200. For example, recess 1206 has a counterbore 1208. At a base of the counterbore 1208, the recess 1206 has recess diameter 1232. The recess 1206 has a further draft angle that concentrically narrows the recess 1206 to recess diameter 1234, which is less than recess diameter 1232 by virtue of the draft angle. In various implementations, the draft angle may vary from 1-10 degrees. In addition, the recess diameter 1234 may exist at a center of the overall width of the container 1200, with the draft angle narrowing the recess diameter from recess diameter 1232 to recess diameter 1234 from each side of the container 1200 in a mirror image (only one side of the container 1200 is shown in
The container 1200 also includes stiffening ribs (e.g., rib 1207) that provide additional stiffness to the sidewalls of the container 1200. The stiffening ribs are formed channels in the body 1201 of the container 1200 that may protrude inward relative to the surrounding body 1201 (as shown herein), or protrude outward relative to the surrounding body 1201. The stiffening ribs connect the recesses, which may provide additional strength to the recesses when they are used as lifting points. Use of the stiffening ribs to increase strength at the recesses may also increase localized stiffness and/or rigidity at the recesses. Further, the stiffening ribs may be used to further reinforce the input/output recesses 1216, 1218 as shown. In other implementations, the stiffening ribs approach the recesses, but stop short of connecting the recesses to preserve the structural integrity of the recesses and avoid introducing any rapid transitions that may lead to reduced thickness of material in some manufacturing processes.
In still other implementations, the stiffening ribs include flared ends (not shown) that provide smoother transitions to the surrounding body 1201 and connected recesses. As a result, the flared ends may reduce the occurrence of stress concentrations in the body 1201 and reduce localized thinning of material that would otherwise occur when manufacturing the container 1200 with more abrupt transitions.
The container 1300 includes an array of recesses 1303, 1305, 1306, 1309 in the body 1301. In various implementations, the recesses are arranged in matched pairs. For example, recesses 1303, 1305 are a matched pair of recesses in opposing sides of the container 1300. Similarly, recesses 1306, 1309 are a matched pair of recesses in opposing sides of the container 1300. The interior of each of the recesses is fully closed such that the container 1300 is sealed from the atmosphere aside from input/output ports (e.g., input/outlet port 1320). The container 1300 may be physically secured and manipulated via the recesses.
While Section C-C illustrates four example cylindrical recesses in the container 1300, the recesses may be any size, shape, or number appropriate for the intended movement or manipulation of the container 1300. The recesses may also each have a counterbore (e.g., counterbore 1308) surrounding the individual recesses. In other implementations, countersinks may be included in place of the depicted counterbores.
The counterbores may increase localized stiffness and/or rigidity at the recesses and may also serve to guide manipulation hardware to the recesses when the manipulation hardware is interfaced with the container 1300, and may serve to recess a portion of the manipulation hardware within the surrounding body 1301. The counterbores may also serve to aid alignment with the manipulation hardware that may be imprecisely directed at the recesses (i.e., a self-centering feature).
Further, each recess may have a draft angle that narrows the recess toward a center of the container. For example, recess 1306 has a counterbore 1308. At a base of the counterbore 1308, the recess 1306 has recess diameter 1332. The recess 1306 has a further draft angle that concentrically narrows the recess 1306 to recess diameter 1334, which is less than recess diameter 1332 by virtue of the draft angle. The recess diameter 1334 exists at a center of the overall width of the container 1300, with the draft angle narrowing the recess diameter from recess diameter 1332 to recess diameter 1334 from each side of the container 1300 in a mirror image, as shown. In other implementations, the draft angle may extend through the entire width of the container 1300 and thus the recess diameters 1332, 1334 exist at opposing surfaces of the container body 1301. In various implementations, the draft angle aids in manufacturing of the container 1300.
The recesses may not extend completely through the container body 1301, and thus have a corresponding base structure (e.g., base structure 1333). In some implementations, the base structure is shared between matched pairs of recesses. In other implementations, each recess has its own base structure distinct from the base structure of an opposing recess. In still other implementations, the recesses extend entirely through the container body 1301, thus linking matched pairs of recesses through the container body 1301.
Further, matched pairs of recesses in the large container (e.g., matched pair 1490) align with matched pairs of recesses in the smaller containers (e.g., matched pair 1494), as illustrated by dashed line 1492. As a result, manipulation hardware may engage the large container and smaller containers via the aligned matched pairs of recesses to physically manipulate the array of containers as a unit.
A locking operation 1510 locks a cap of one or both of the input/output assemblies in place. The locking operation 1510 may utilize locking mechanisms that partially enclose the caps and prevents rotation of the caps with respect to the locking mechanisms and rotation of the locking mechanisms with respect to the container. In some implementations, the locking mechanisms prevent the caps from inadvertently unscrewing from the input/output assemblies. In other implementations, the locking mechanisms prevent unauthorized tampering or alerts to unauthorized tampering with the input/output assemblies. Still further, the locking operation 710 may be omitted where inadvertent or unauthorized unscrewing of the caps from the input/output assemblies is not of concern.
A freezing operation 1515 freezes the fluid stored within the container. The container is placed in a phase-change orientation during the freezing operation, which orients both of the input/output assemblies in a headspace of the container. Thus, any phase-change of the fluid does not impact the input/output assemblies, which may be susceptible to damage from the phase change. The aspect ratio (height/width and/or length/width) and other disclosed features of the container prevent the freezing operation 1515 from damaging the container.
An interfacing operation 1520 interfaces two or more matched pairs of recesses in a body of the container with manipulation hardware. The container includes the matched recesses to enable easy physical manipulation of the container. The matched pairs of recesses are oriented on opposing sides of the container and the manipulation hardware either extends through the recesses (in the event the pairs of recesses connect through the container) or pinches the container at the recesses to attach to the container.
A suspending operation 1525 suspends the container via the recesses. The manipulation hardware lifts the container via the recesses and the container is structurally configured such that it may be fully supported via the recesses. A moving operation 1530 moves the container to a new location and/or orientation. The manipulation hardware may be moved in concert to physically relocate the container. Further, the manipulation hardware may be moved with respect to itself to physically re-orient the container (e.g., to move from fill, phase-change, and discharge orientations).
A thawing operation 1535 thaws the frozen fluid stored within the container. In various implementations, the fluid within the container is not entirely frozen in operation 1515 and/or entirely thawed in operation 1535. The container is merely able to withstand full phase changes, should they occur. Still further, freezing operation 1515 and thawing operation 1535 may be repeated during performance of the operations 1500, for example, during transit of the container.
An unlocking operation 1540 unlocks the caps of the input/output assemblies. The unlocking operation 1540 is achieved by removing the locking mechanisms from the caps of the input/output assemblies. The unlocking operation 1540 may be omitted when the locking operation 1510 is omitted.
A discharging operation 1545 discharges the fluid from the container via the input/output assemblies. The container is oriented in a discharge orientation, which places a straw of one of the input/output assemblies at a low-point of the container. The other of the input/output assemblies is utilized as a vent, permitting pressure equalization gases (atmospheric air or other gases) into the container as the fluid is drained from the container, thereby maintaining pressure equalization within the container to atmospheric pressure. More specifically, the vent provides an entrance for gases to displace the fluid that is discharged from the container.
The logical operations making up the embodiments of the invention described herein are referred to variously as operations, steps, objects, or modules. Furthermore, it should be understood that logical operations may be performed in any order, adding or omitting operations as desired, unless explicitly claimed otherwise or the claim language inherently necessitates a specific order.
The above specification, examples, and data provide a complete description of the structure and use of exemplary embodiments of the invention. Since many embodiments of the invention can be made without departing from the spirit and scope of the invention, the invention resides in the claims hereinafter appended. Furthermore, structural features of the different embodiments may be combined in yet another embodiment without departing from the recited claims.
The present application in a continuation of U.S. patent application Ser. No. 14/736,633, entitled “Phase-Change Accommodating Rigid Fluid Container” and filed on Jun. 11, 2015, which claims benefit of priority to U.S. Provisional Patent Application No. 62/010,681, entitled “Freeze/Thaw Fluid Container with Combined Inlet/Outlet” and filed on Jun. 11, 2014, all of which are specifically incorporated by reference herein for all that they disclose or teach.
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Number | Date | Country | |
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Parent | 14736633 | Jun 2015 | US |
Child | 16117354 | US |