USRE32232E - Bin for free flowing material - Google Patents
Bin for free flowing material Download PDFInfo
- Publication number
- USRE32232E USRE32232E US06/621,868 US62186884A USRE32232E US RE32232 E USRE32232 E US RE32232E US 62186884 A US62186884 A US 62186884A US RE32232 E USRE32232 E US RE32232E
- Authority
- US
- United States
- Prior art keywords
- bin
- bag
- free flowing
- iadd
- iaddend
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/58—Large containers characterised by means facilitating filling or emptying by displacement of walls
- B65D88/60—Large containers characterised by means facilitating filling or emptying by displacement of walls of internal walls
- B65D88/62—Large containers characterised by means facilitating filling or emptying by displacement of walls of internal walls the walls being deformable
Definitions
- This invention relates to a bin for containing and discharging free flowing granular materials made of a flexible inflatable bag having an inner membrane and an outer membrane.
- Free flowing granular material for instance, sugar
- silos or bins having rigid walls and bottoms made of metal or some other rigid material.
- a discharge port is generally provided in the bottom of such a bin or silo, which, when opened, permits the material in the container to flow out. From the discharge port, the material may be conveyed away by a conveying means such as a screw conveyor. If the bottom of the silo or bin, extending from the discharge port to the walls, is flat or horizontal, not all of the free flowing granular material will be discharged through the discharge port by gravity. It is a characteristic of free flowing granular material contained in a flat bottomed bin or silo to stop flowing out the discharge port when the material remaining in the bin is at an angle of repose.
- the material remaining in the bin after discharge by gravity forms a cone shape inside the silo.
- the inner face of this cone shape formed by the free flowing granular material, extends from the discharge port in the bottom of the silo upward at an angle to the wall of the silo or bin.
- the angle of repose at which this cone shape occurs and discharge by gravity ends depends on the physical characteristics of the material involved.
- bins have been provided with hopper bottoms.
- These hopper bottoms are cone-shaped, extending upward from the discharge port at an angle towards the bin or silo walls.
- the angle at which the hopper bottom projects from the discharge port to the bin wall is sufficient to prevent the material in the bin from resting in a cone shape at an angle of repose and to direct the entire contents of the bin towards the discharge port for removal.
- a hopper bottom all of the material placed in the silo or bin is discharged when the discharge port is opened because it cannot form a cone at an angle of repose.
- the cone shape of the silo bottom concentrates the weight of the free flowing granular material on a smaller area than a flat bottomed silo or bin of the same size.
- a bin with a hopper bottom has a higher center of gravity than the same sized bin with a flat bottom. This higher center of gravity may not be a significant problem in stationary bins, but may be of greater importance in a mobile bin or container.
- a hopper shaped bin is expensive and wasteful of space.
- This invention provides a bin for containing free flowing granular material made of a flexible, inflatable bag having an inner membrane and an outer membrane engaged to form an air tight space between the two membranes.
- the bag is suspended from a framework which holds the bag in an open position forming a bin having sides and a bottom.
- the bottom of the bin rests on a support member, such as a floor or other supporting structure.
- a closeable discharge port is provided in the bottom of the bin through which the material stored or contained in the bin is discharged. When the material in the bin reaches its angle of repose, and stops flowing out of the discharge port, air is forced through an air inlet into the bag to inflate the inner membrane and complete the discharge operation.
- FIG. 1 is a sectional view of a bin constructed in accordance with this invention filled with free flowing granular material.
- FIG. 2 is a top view of a bin constructed in accordance with this invention filled with free flowing granular material.
- FIG. 3 is a sectional view of a bin constructed in accordance with this invention in which a discharge port has been opened and the free flowing granular material has been discharged until the remaining material is at an angle of repose.
- FIG. 4 is a sectional view of a bin constructed in accordance with this invention with the inner membrane partially inflated.
- FIG. 5 is a sectional view of a bin constructed in accordance with this invention wherein the inner membrane has been more fully inflated than in FIG. 4 to discharge more of the remaining free flowing material.
- FIG. 6 is a sectional view of a bin constructed in accordance with this invention wherein the inner membrane of the bag is more fully inflated than in FIG. 5.
- FIG. 7 is a sectional view of a bin constructed in accordance with this invention wherein the inner membrane of the bag is fully inflated and substantially all of the remaining free flowing granular material has been discharged.
- a bin constructed, in accordance with this invention, of a flexible bag with an inner membrane 2 and an outer membrane 4 which form the bin sides 6 and bottom 8.
- the bag is attached to a framework 10.
- the framework for large free standing stationary bins has pillars 12 which are spaced apart and support an upper clamp 14 which engages the inner membrane and the outer membrane of the bag. In this manner, a substantially air tight space 16 is formed between the two engaged membranes.
- the pillars 12 may be made of any rigid material, such as metal or wood, that will support the upper clamp 14 and the bag.
- the bottom of the bag should rest on a flat support member 18, such as a floor.
- the upper clamp 14 may be any device which holds the membranes together to form an air tight space 16 and which can support the bin sides in an upright, open position.
- the clamp 14 may consist of two rigid strips made, for instance, of metal. The two membranes are placed between the metal strips and the metal strips are pressed together to engage the membranes of the bag in an air tight relationship.
- Fasteners .[.18.]. .Iadd.18'.Iaddend., such as threaded bolts, may be used to tighten the clamp 14 and grommets may be provided in the membranes for reinforcement.
- the framework may be constructed in any manner which supports the bag in an upright open position and holds the membranes of the bag together in an air tight relationship.
- the number of pillars used, or whether pillars will be used at all, will depend on the size of the bin, whether it is mobile or stationary and many other factors.
- the framework may consist of a clamp, attached to the walls or ceiling of the vehicle storage compartment, which extends around the entire perimeter of such storage compartment. The bag could then be suspended from the clamp within the storage compartment. A bottom portion of the bag should rest on a supporting member, such as a floor, and extend outward horizontally from the discharge port.
- a discharge port 20 extends through both the inner membrane 2 and the outer membrane 4 of the bag and may be opened and closed by a gate 22 to control the gravity discharge of free flowing granular material 24.
- the discharge port is also provided with a lower clamp 26 which engages the inner membrane and the outer membrane of the bag in a substantially air tight relationship.
- Beams 28 extend from the pillars 12 of the framework 10 to an area above the middle portion of the bin. From these beams, a tarp or other cover (not shown) may be suspended above the bin to protect the material contained within the bin from contamination. Other means of covering the bin may be used without changing the function of this invention.
- the free flowing granular material 24 for which the bin of this invention is constructed may be any dry flowable solid consisting of discrete particles which assume an angle of repose when discharged from a flat bottomed bin. Free flowing granular material 24 at an angle of repose is illustrated in FIG. 3. Examples of free flowing granular material are sugar, salt or grain but any solid particulate matter which forms an angle of repose is encompassed within the term free flowing granular material.
- the bag may be of any flexible material but is preferably not elastic and it must not contaminate the contents of the bin.
- Such flexible bag material is commercially available, and material including a combination of nylon and polyethylene has been found to have suitable characteristics for use in this invention.
- the size of the bag used in this invention will necessarily depend on the nature of the free flowing material, the size of the area in which the bin is located and many other factors. For instance, a bin located in a warehouse may have a diameter of 16 to 18 feet and the sides of the bin may extend upward 8 to 10 feet from the bottom. But the dimensions of a bag used to form a bin within the storage area of a vehicle would be determined by the size of that storage area. It will also be understood that the drawings illustrate the relationship between the parts that comprise this invention and in practice the inner and outer membranes will be forced together by the material contained within the bin where it contacts the inner membrane.
- the gate 22 of the discharge port 20 To discharge the free flowing granular material from a bin constructed in accordance with this invention the gate 22 of the discharge port 20 must be opened. The contents of the bin may then flow out of the opened discharge port to be carried away by a conveying means (not shown), such as a screw conveyor, or to be discharged into a moveable container for transport to a different area.
- the free flowing granular material continues to flow out of the bin through the discharge port until the angle of repose for the particular material in the bin is reached, as shown in FIG. 3.
- the inner face 30 of the free flowing material 24 assumes an inverted cone shape with its apex at the discharge opening and discharge of the material by gravity stops.
- the upper portion of the inner membrane near the clamp may move freely towards the inner part of the storage area in response to the air flowing through the air inlet. Even small levels of pressure between the inner membrane and outer membrane are sufficient to overcome the limited resistance caused by the small quantity of granular free flowing material adjacent the inner membrane at the top of the inverted cone.
- the inner membrane inflates and extends further towards the center of the storage area as shown in FIGS. 4 and 5 and 6 until full inflation is achieved, as shown in FIG. 7, and substantially the entire contents of the bin are discharged through the discharge port.
- the air inlet 32 is preferably positioned above the line where the material contained within the bin touches the sides of the bag. This position of the air inlet above the contents of the bin ensures that the inner membrane 2 will encounter the least possible resistance to inflation.
- the air may be forced into the bag by a blower 34 such as a compressor, or simply by a fan since even a low level of pressure will overcome the resistance of the free flowing granular material 24 at the top of the cone. For example, in an initial reduction to practice only about 0.5 psi air pressure was required.
- the bin of this invention By forming the bin of this invention from flexible bag material, a substantial amount of weight is eliminated since rigid material such as metal, is not required for the bottom or sides.
- the flat bottom provided by the bag structure distributes the weight of the free flowing material over a large surface area.
- the light weight of bins constructed in accordance with this invention and the distribution of weight over a large surface area helps maximize the amount of free flowing granular material that can be stored in a limited space.
- the reinforcements required to install bins on elevated support members, such as upper floors of warehouses, may therefore be decreased by this invention.
- a further advantage of the bin constructed in accordance with this invention is that the bag material may be substantially cheaper than the rigid material used to construct silos or bins and the contents of the flat bottomed bin of this invention may be fully discharged in a simple manner.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/621,868 USRE32232E (en) | 1981-04-27 | 1984-06-18 | Bin for free flowing material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/257,604 US4421250A (en) | 1981-04-27 | 1981-04-27 | Bin for free flowing material |
US06/621,868 USRE32232E (en) | 1981-04-27 | 1984-06-18 | Bin for free flowing material |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/257,604 Reissue US4421250A (en) | 1981-04-27 | 1981-04-27 | Bin for free flowing material |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE32232E true USRE32232E (en) | 1986-08-26 |
Family
ID=26946072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/621,868 Expired - Lifetime USRE32232E (en) | 1981-04-27 | 1984-06-18 | Bin for free flowing material |
Country Status (1)
Country | Link |
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US (1) | USRE32232E (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5360143A (en) * | 1993-04-29 | 1994-11-01 | The Dow Chemical Company | Lined hopper for storing solids |
US5653354A (en) * | 1995-08-21 | 1997-08-05 | Noslo Enterprises, Inc. | Stackable container system for flowable materials |
US5722552A (en) * | 1995-08-21 | 1998-03-03 | Noslo Enterprises, Inc. | Collapsible stackable container system for flowable materials |
US5746027A (en) * | 1996-08-27 | 1998-05-05 | Bonerb; Timothy C. | Device and method for removing ice and snow from roofs and overhangs |
US6120181A (en) | 1998-01-28 | 2000-09-19 | A. R. Arena Products, Inc. | Pillow bag with integral filling conduit |
US6216900B1 (en) | 1996-05-29 | 2001-04-17 | Converta-Vans, Incorporated | Collapsible tank for convertible freight container |
US6234351B1 (en) | 1998-01-28 | 2001-05-22 | A. R. Arena Products, Inc. | Apparatus and method for enhancing evacuation of bulk material shipper bags |
US6427873B2 (en) | 1998-01-28 | 2002-08-06 | A. R. Arena Products, Inc. | Method and apparatus for enhancing evacuation of bulk material shipper bags |
AU2002237821B2 (en) * | 2001-01-18 | 2005-07-28 | A.R. Arena Products, Inc. | Top discharge of pumpable material from shipper bags |
WO2006068620A1 (en) * | 2004-12-23 | 2006-06-29 | Janfire Aktiebolag | A storage container for granular fuel, a device and a method for feeding the fuel forward |
US20060175224A1 (en) * | 2005-02-04 | 2006-08-10 | A. R. Arena Products, Inc. | Cheese box cover |
US20070090013A1 (en) * | 2005-10-20 | 2007-04-26 | Yoshifusa Kark K | Structure of air-packing device |
US7798711B2 (en) | 2004-07-27 | 2010-09-21 | Cdf Corporation | Flexible liner for FIBC or bag-in-box container systems |
US8075188B2 (en) | 2006-02-24 | 2011-12-13 | Cdf Corporation | Flexible liner for FIBC or bag-in-box container systems with improved flex crack resistance |
US8182152B2 (en) | 2006-03-28 | 2012-05-22 | Cdf Corporation | Flexible liner for FIBC or bag-in-box container systems with improved tensile strength |
US8567660B2 (en) | 2009-11-17 | 2013-10-29 | Cdf Corporation | Sustainable packaging system for shipping liquid or viscous products |
US9016555B2 (en) | 2007-04-03 | 2015-04-28 | Cdf Corporation | Flexible liner and bag-in-box container systems |
US9120608B2 (en) | 2009-11-17 | 2015-09-01 | Cdf Corporation | Sustainable packaging system for shipping liquid or viscous products |
US20170253427A1 (en) * | 2016-03-02 | 2017-09-07 | Think Tank Products Inc. | Bladder for containment vessel |
EP3319886A4 (en) * | 2015-08-05 | 2019-05-08 | Timothy C. Bonerb | Flexible liner system for discharging and aerating dry materials in a storage bin |
US10336530B2 (en) | 2013-04-25 | 2019-07-02 | A.R. Arena Products, Inc. | Disassembleable cheese container with wrap-around interlock and increased fill volume |
US10822162B2 (en) | 2017-08-02 | 2020-11-03 | A.R. Arena Products, Inc. | Shipper bag providing fluid-assisted container evacuation |
US11155424B2 (en) * | 2019-11-07 | 2021-10-26 | Cnh Industrial America Llc | Pneumatically inflated pillow for grain bin unload |
US11180280B2 (en) | 2010-11-16 | 2021-11-23 | Cdf Corporation | Secondary packaging system for pre-packaged products |
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US1570795A (en) * | 1924-08-20 | 1926-01-26 | Urlyn C Tainton | Storage bin or hopper |
US2646905A (en) * | 1950-11-01 | 1953-07-28 | Goodrich Co B F | Inflatable panel assembly for storage bins |
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US2792262A (en) * | 1955-04-08 | 1957-05-14 | Halliburton Oil Well Cementing | Pneumatically discharged vessel for pulverulent materials |
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US2956839A (en) * | 1956-01-19 | 1960-10-18 | Hermanns Wilhelm | Container having a built-in emptying device for pulverulent material or the like |
US3097766A (en) * | 1959-09-17 | 1963-07-16 | Curtiss Wright Corp | Pre-filled propellant tank for rockets |
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US3421663A (en) * | 1963-09-09 | 1969-01-14 | Dynabulk Corp | Material discharging device for containers |
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GB1144162A (en) * | 1965-07-16 | 1969-03-05 | Whd Dev Ltd | Improvements in or relating to silos for storing grain and other solid flowable materials |
US3456834A (en) * | 1963-09-09 | 1969-07-22 | Dynabulk Corp | Condensation-deterring container |
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US3502240A (en) * | 1967-10-30 | 1970-03-24 | Dynabulk Corp | Membrane edge-attaching structure |
DE2351425A1 (en) * | 1972-10-14 | 1974-04-25 | Ferriol Catala | DEVICE FOR IMPROVING THE DISCHARGE CAPABILITY OF STATIONARY OR TRANSPORTABLE BOILERS CONTAINING LIQUID OR POWDERED OR GRANULATED MATERIALS |
US3858772A (en) * | 1972-06-26 | 1975-01-07 | Conair | Hopper assembly |
US3941258A (en) * | 1974-02-04 | 1976-03-02 | Ide Allan R | Method and apparatus for storing and unloading bulk material |
DE2705689A1 (en) * | 1977-02-11 | 1978-08-17 | Truetzschler & Co | Liner for particulate material hoppers - is inflatable by compressed air to ensure complete emptying |
-
1984
- 1984-06-18 US US06/621,868 patent/USRE32232E/en not_active Expired - Lifetime
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US2646905A (en) * | 1950-11-01 | 1953-07-28 | Goodrich Co B F | Inflatable panel assembly for storage bins |
US2792262A (en) * | 1955-04-08 | 1957-05-14 | Halliburton Oil Well Cementing | Pneumatically discharged vessel for pulverulent materials |
US2956839A (en) * | 1956-01-19 | 1960-10-18 | Hermanns Wilhelm | Container having a built-in emptying device for pulverulent material or the like |
US2931523A (en) * | 1957-06-24 | 1960-04-05 | Albert Schwill & Company | Self-unloading compartment |
US3097766A (en) * | 1959-09-17 | 1963-07-16 | Curtiss Wright Corp | Pre-filled propellant tank for rockets |
BE650189A (en) * | 1963-07-25 | 1965-01-06 | ||
US3456834A (en) * | 1963-09-09 | 1969-07-22 | Dynabulk Corp | Condensation-deterring container |
US3421663A (en) * | 1963-09-09 | 1969-01-14 | Dynabulk Corp | Material discharging device for containers |
US3396762A (en) * | 1963-09-09 | 1968-08-13 | Dynabulk Corp | Methods of densifying and deterring deterioration and contamination of discrete particle material in a container |
GB1089874A (en) * | 1963-10-24 | 1967-11-08 | Interconsult Ab | A discharge device for containers for powdery or granular materials |
US3199726A (en) * | 1963-11-12 | 1965-08-10 | Us Rubber Co | Collapsible container and method of emptying the same |
US3273761A (en) * | 1963-12-02 | 1966-09-20 | Clouth Rhein Gummiwarenfabrik | Agitator for granular materials and the like |
US3209894A (en) * | 1964-06-24 | 1965-10-05 | Joy Mfg Co | Conveyor |
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GB1144162A (en) * | 1965-07-16 | 1969-03-05 | Whd Dev Ltd | Improvements in or relating to silos for storing grain and other solid flowable materials |
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US3421665A (en) * | 1967-10-30 | 1969-01-14 | Dynabulk Corp | Closure for container-lining membrane port |
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Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5360143A (en) * | 1993-04-29 | 1994-11-01 | The Dow Chemical Company | Lined hopper for storing solids |
US5653354A (en) * | 1995-08-21 | 1997-08-05 | Noslo Enterprises, Inc. | Stackable container system for flowable materials |
US5722552A (en) * | 1995-08-21 | 1998-03-03 | Noslo Enterprises, Inc. | Collapsible stackable container system for flowable materials |
US6216900B1 (en) | 1996-05-29 | 2001-04-17 | Converta-Vans, Incorporated | Collapsible tank for convertible freight container |
US6299437B1 (en) | 1996-05-29 | 2001-10-09 | Converta-Vans, Incorporated | Heating system for collapsible tank |
US5746027A (en) * | 1996-08-27 | 1998-05-05 | Bonerb; Timothy C. | Device and method for removing ice and snow from roofs and overhangs |
US6120181A (en) | 1998-01-28 | 2000-09-19 | A. R. Arena Products, Inc. | Pillow bag with integral filling conduit |
US6234351B1 (en) | 1998-01-28 | 2001-05-22 | A. R. Arena Products, Inc. | Apparatus and method for enhancing evacuation of bulk material shipper bags |
US6427873B2 (en) | 1998-01-28 | 2002-08-06 | A. R. Arena Products, Inc. | Method and apparatus for enhancing evacuation of bulk material shipper bags |
AU2002237821B2 (en) * | 2001-01-18 | 2005-07-28 | A.R. Arena Products, Inc. | Top discharge of pumpable material from shipper bags |
US7798711B2 (en) | 2004-07-27 | 2010-09-21 | Cdf Corporation | Flexible liner for FIBC or bag-in-box container systems |
US9346612B2 (en) | 2004-07-27 | 2016-05-24 | Cdf Corporation | Flexible liner for FIBC or bag-in-box container systems |
US20080277428A1 (en) * | 2004-12-23 | 2008-11-13 | Robert Ingvarsson | Storage Container For Granular Fuel, a Device and a Method For Feeding the Fuel Forward |
WO2006068620A1 (en) * | 2004-12-23 | 2006-06-29 | Janfire Aktiebolag | A storage container for granular fuel, a device and a method for feeding the fuel forward |
US8141750B2 (en) | 2004-12-23 | 2012-03-27 | Janfire Ab | Storage container for granular fuel, a device and a method for feeding the fuel forward |
US20060175224A1 (en) * | 2005-02-04 | 2006-08-10 | A. R. Arena Products, Inc. | Cheese box cover |
US20070090013A1 (en) * | 2005-10-20 | 2007-04-26 | Yoshifusa Kark K | Structure of air-packing device |
US8075188B2 (en) | 2006-02-24 | 2011-12-13 | Cdf Corporation | Flexible liner for FIBC or bag-in-box container systems with improved flex crack resistance |
US8182152B2 (en) | 2006-03-28 | 2012-05-22 | Cdf Corporation | Flexible liner for FIBC or bag-in-box container systems with improved tensile strength |
US9016555B2 (en) | 2007-04-03 | 2015-04-28 | Cdf Corporation | Flexible liner and bag-in-box container systems |
US9120608B2 (en) | 2009-11-17 | 2015-09-01 | Cdf Corporation | Sustainable packaging system for shipping liquid or viscous products |
US8567660B2 (en) | 2009-11-17 | 2013-10-29 | Cdf Corporation | Sustainable packaging system for shipping liquid or viscous products |
US11180280B2 (en) | 2010-11-16 | 2021-11-23 | Cdf Corporation | Secondary packaging system for pre-packaged products |
US10336530B2 (en) | 2013-04-25 | 2019-07-02 | A.R. Arena Products, Inc. | Disassembleable cheese container with wrap-around interlock and increased fill volume |
EP3319886A4 (en) * | 2015-08-05 | 2019-05-08 | Timothy C. Bonerb | Flexible liner system for discharging and aerating dry materials in a storage bin |
US10486898B2 (en) * | 2015-08-05 | 2019-11-26 | Timothy C. Bonerb | Flexible liner system for discharging and aerating dry materials in a storage bin |
US20170253427A1 (en) * | 2016-03-02 | 2017-09-07 | Think Tank Products Inc. | Bladder for containment vessel |
US10370185B2 (en) * | 2016-03-02 | 2019-08-06 | Think Tank Products Inc. | Bladder for containment vessel |
US10822162B2 (en) | 2017-08-02 | 2020-11-03 | A.R. Arena Products, Inc. | Shipper bag providing fluid-assisted container evacuation |
US11155424B2 (en) * | 2019-11-07 | 2021-10-26 | Cnh Industrial America Llc | Pneumatically inflated pillow for grain bin unload |
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