US20180194551A1 - Multi-piece storage tank pad with separate connectors - Google Patents
Multi-piece storage tank pad with separate connectors Download PDFInfo
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- US20180194551A1 US20180194551A1 US15/913,794 US201815913794A US2018194551A1 US 20180194551 A1 US20180194551 A1 US 20180194551A1 US 201815913794 A US201815913794 A US 201815913794A US 2018194551 A1 US2018194551 A1 US 2018194551A1
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- pad
- piece
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- storage tank
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- 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
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/12—Supports
Definitions
- This disclosure relates in general to a support pad for a fluid storage tank, and more specifically to a multi-piece storage tank pad with separate connectors used to support storage tanks including storage tanks used in oilfield.
- a gravel base may be time consuming and require such construction in advance of erecting or otherwise installing the tank.
- a gravel base may require the transport and handling of large quantities of gravel from a remote location to the tank site.
- a gravel base may allow ground water and rain water to collect, which may cause the storage tank to rust or otherwise corrode, which threatens the structural integrity of the tank and may make leaks more likely. Tank leaks are detrimental to the production or disposal process and also to the environment.
- Embodiments disclosed include a multi-piece pad for supporting a storage tank, as might be found in oil and gas extraction or refining operations.
- the multi-piece pad includes a plurality of pad pieces where each pad piece has a core coated with a polymeric coating. Each pad piece also defines at least two connector receiving contours. Two pad pieces of the multi-piece pad are joined by a connector.
- the cores are formed from a material that allows the pad piece to be light weight in that it may be handled by hand by two individuals without additional lifting equipment.
- Each connector also has a core that is coated with the polymeric coating.
- Each connector is separate from the plurality of pad pieces, and each has a shape that corresponds to two adjacent connector receiving contours.
- the multi-piece pad includes four, six, eight, ten, or twelve pad pieces. Any suitable number of pad pieces may be joined to form a storage tank pad according to the present disclosure, and preferably an even number of tank pads. Outer pad pieces connect to two other pad pieces with two connectors, and inner pad pieces connect to three other pad pieces with three connectors. A portion of a perimeter of each pad piece forms part of a circumference of a circle when all the pad pieces are assembled.
- the core is formed of an expanded polystyrene material and the coating is formed of a polyurea material that is applied by a thermal sprayer that coats the core with polyurea resin that cures to bond with the core to form an impermeable outer shell.
- tank pads with separate connectors include tank pads that are easier to bundle and ship than tank pads with integral connector portions. Also, the surface area at the interface of the connector and the individual tank pad pieces allow for drainage between the two pieces.
- FIGS. 1A and 1B are environmental views of a storage tank supported by a multi-piece tank pad with separate connectors according to the teachings of the present disclosure
- FIG. 2 is a perspective view of the multi-piece tank pad of FIG. 1 showing six individual pieces and separate connectors;
- FIG. 3 is a detailed perspective view of a connection of adjacent tank pad pieces using a connector
- FIG. 4 is a perspective view of a connector
- FIG. 5 is a perspective view of an individual inner tank pad piece showing three perimeter connector receiving contours
- FIG. 6 is a perspective view of a multi-piece tank pad formed of eight individual tank pad pieces and separate connectors
- FIG. 7 is a perspective view of a multi-piece tank pad formed of twelve individual tank pad pieces and separate connectors.
- FIGS. 1A and 1B are environmental views of a storage tank 10 , which may also referred to as an oilfield storage tank 10 supported by a multi-piece tank pad 12 with separate connectors according to the teachings of the present disclosure.
- the multi-piece tank pad 12 supports the storage tank 10 above ground level, so that the bottom of the tank is elevated and not resting on the earth where it may be exposed to ground water and other corrosive elements.
- the oilfield storage tank 10 may be used to store oil, natural gas, fresh water, waste water, water used in hydraulic fracturing operations, gasoline, diesel fuel or any other material associated with oil and gas production that requires storage associated with special processing either to refine into a usable petroleum product or for further processing for environmentally safe disposal.
- the storage tank 10 may be any size and shape. Some common sizes of oilfield storage tanks are diameters of ten feet, twelve feet, fifteen-and-half feet, and twenty-one-and-a-half feet.
- FIG. 1A shows a storage tank 10 with a diameter of a lower portion that is less than a diameter of the multi-piece tank pad 12 .
- FIG. 1B shows a lower portion of a storage tank 10 with a diameter of the lower portion that is greater than a diameter of the multi-piece tank pad 12 .
- the tank pad 12 may be better protected from water accumulation because drainage descending from the side surfaces of the storage tank 10 drips off the storage tank 10 onto the ground where it can be received by one or more ground drains.
- FIG. 2 is a perspective view of a multi-piece pad 12 assembled to support a storage tank 10 according to the teachings of the present disclosure.
- the tank pad 12 is formed by connecting multiple pieces together to form a large circular pad with a thickness of approximately four to eighteen inches, but any suitable thickness is contemplated by this disclosure.
- the tank pad 12 shown in FIG. 2 is formed from six pad pieces 14 joined to each other by seven connectors 16 , where each connector 16 is separate from the pad pieces 14 .
- Each tank pad piece 14 and each connector 16 of the multi-piece storage tank pad 12 is light weight so that it may be easily handled in transport and during assembly at the tank site.
- the individual pad pieces 14 and the connectors 16 are made of a core formed of sturdy light weight material that is coated with a polymeric coating.
- the core may be formed of an extruded foam, such as an extruded polystyrene, an expanded foam, such as an expanded polystyrene material or similar strong, light weight material.
- the core is formed of extruded polystyrene with a two pound density. In another embodiment, the density of the extruded polystyrene may have a density of three pounds.
- the light weight material may be a polymer with a foaming agent, a honeycomb material, an aerated polymer, a closed cell foam, an open cell foam, or a urethane.
- the coating may be a polyurea that is sprayed onto the core using a thermal spray system. The light weight material allows at most two individuals to move and position by hand a single pad piece, and in other embodiments a single individual may be able to handle and position a single pad piece.
- the coating may be any suitable coating to coat and bond with the core material to seal the voids of the core from the ambient surroundings. Once cured, the coating bonds to the core and creates an impermeable shell covering the core.
- the coating may be paint, polyurethane, polyurea, thermoset, thermoplastic, epoxy, and the like.
- the coating is a polymeric coating that is marketed under the trade name Ecodur 201 and provided by Castagra Products, Inc. of Reno, Nev.
- the cured polymeric coating may have a thickness in the range of 40 to 80 mils.
- the multi-piece storage tank pad 12 is formed of four outer pad pieces 18 and two inner pieces 20 .
- Each one of the outer pieces 18 and the inner pieces 20 includes an arcuate perimeter surface 22 that forms part of the overall circular perimeter of the multi-piece tank pad 12 when the pieces are joined together.
- Each outer pad piece 18 connects to another outer pad piece 18 and to one inner pad piece 20 .
- Two inner pieces 20 connect to each other and each inner pad piece 20 connects to an outer pad piece 18 on each side of the inner pad piece 20 .
- each individual pad piece 14 is positioned adjacent to another piece 14 such that respective connector-receiving contours 24 together form a connector-receiving cutout 26 .
- a connector 16 may be received by the connector-receiving cutout 26 to join the two pieces 14 .
- FIG. 3 is a detail perspective view of a connection between two outer pad pieces 18 with a connector 16 .
- FIG. 4 is a perspective view of a single connector 16 .
- FIG. 5 is a perspective view of a single tank pad piece 14 , specifically an inner tank pad piece 20 .
- Each connector-receiving contour 24 includes a concave contour 28 on a first end and another concave contour 28 on a second end.
- the concave contours 28 receive corresponding convex connector surfaces 30 of the connector 16 when the tank pad pieces are joined.
- the connector 16 includes a notch 32 disposed between two adjacent convex connector surfaces 30 .
- the notch 32 receives a portion of each of two adjacent pad pieces 14 .
- the notch 32 may receive portions of the pad pieces that are more rounded than illustrated.
- the polymeric coating may coat rounded surface better than sharp corners.
- the connector 16 constrains movement of individual adjacent tank pad pieces 14 with respect to each other.
- the connector 16 generally has a thickness equal to the thickness of the tank pad pieces 14 such that a top surface 34 of the connector is flush with the top surfaces of the tank pad pieces 14 .
- the arcuate surfaces of the concave contour 28 of the tank pad pieces 14 and the convex connector surface 30 of the connector 16 allow tenacious bonding of the polymeric coating, such as polyurea.
- the coating bonds to and completely coats rounded surfaces better than sharp corner-type surfaces. As such, the coating may better prevent liquid from reaching the voids of the core and being absorbed and retained by such voids in the material of the core.
- all connectors 16 for a particular multi-piece pad 12 are the same size and shape such that any connector 16 can be received by any connector-receiving cutouts 26 in adjacent pad pieces 14 .
- the connectors 16 and the corresponding connector receiving cutouts 26 are illustrated symmetrical, the present disclosure contemplates non-symmetrical connectors 16 and connector receiving cutouts 26 .
- the connector receiving cutouts 26 need not extend the full thickness of the pad piece 14 .
- the connector 16 may have a thickness that is less than the thickness of the pad piece 14 , and the top surface 34 of the connector 16 may or may not be flush with the top surface of the pad pieces 14 .
- FIG. 5 illustrates an inner tank pad piece 20 .
- One of the perimeter surfaces is an arcuate perimeter surface 22 , and the other three perimeter surfaces define connector-receiving contours 24 .
- the connector-receiving contours 24 may comprise any suitable percentage of the perimeter sides of an individual tank pad piece 14 .
- the connector-receiving contour 24 of the shorter perimeter side occupies over 50% of the overall length of the shorter perimeter side.
- the connector-receiving contour 24 occupies in a range of 25%-35% of the length of the longer perimeter side of the tank pad piece 20 .
- connector-receiving contours 24 configured to receive a correspondingly sized connector 16 may have an approximate length to occupy from 25%-75% of a length of a perimeter side of a tank pad piece 14 .
- the perimeter sides including the arcuate perimeter side 22 are disposed in a generally rectangular shape with the connector receiving contours 24 extending inward of the peripheral sides.
- This configuration of a tank pad piece 14 , 20 facilitates bundling and shipping of the tank pad pieces 14 .
- a tank pad piece with an integrated connector will have one or more sides with a connector portion extending outward from a perimeter side. This extending integrated connector portion may complicate bundling and shipping of tank pad pieces.
- the multi-piece tank pad with separate connectors of the present disclosure ameliorates this issue by allowing the connectors to be separate from the tank pad pieces 14 , so the connectors 16 can be separately bundled and located separate from the tank pad pieces 14 on a shipping vehicle, such as a semi-trailer truck.
- the six piece tank pad 12 shown in FIG. 2 may have an overall diameter of approximately 10 feet, and therefore supports an oil-field storage tank 10 that is substantially 10 feet in diameter.
- the diameter of the oil field storage tank 10 may be slightly greater ( FIG. 1B ) or slightly less ( FIG. 1A ) than the diameter of the assembled multi-piece storage tank pad 12 .
- a diameter of the assembled tank pad 12 shown in FIG. 2 is defined by the junction of three tank pieces 14 with a second set of three tank pieces 14 .
- each junction of two tank pieces 14 includes a pair of connector-receiving contours 24 that form a connector-receiving cutout 26 .
- the portion of the diameter occupied by the connector-receiving cutouts 26 , and thus the connectors 16 may be 35-65% of the total diameter of the circular assembled tank pad 12 .
- FIG. 6 is a perspective view of an eight piece oil field storage tank pad 40 .
- the assembled eight piece oil field storage tank pad 40 has a diameter of approximately twelve feet, and therefore supports an oilfield storage tank with a diameter of approximately twelve feet. Similar to the six piece embodiment, the eight piece embodiment can support an oil-field storage tank with a diameter slightly greater or slightly less than twelve feet.
- the pieces 42 and the connectors 44 are generally shaped similar to that described with respect to FIGS. 2-5 with the exception that the dimensions of the individual pieces 42 and connectors 44 are sized to form a twelve foot diameter multi-piece tank pad 40 when assembled.
- FIG. 7 illustrates a perspective view of a twelve piece multi-piece oil field tank pad 50 .
- the twelve piece oil field tank pad 50 has a diameter of approximately sixteen feet.
- the twelve piece oil field tank pad 50 is configured to support a storage tank that is substantially sixteen feet in diameter. Similar to the other embodiments, the twelve piece oil field tank pad 50 can support a storage tank that has a diameter slightly larger or slightly less than sixteen feet.
- the pieces 52 and the connectors 54 are generally shaped similar to that described with respect to FIGS. 2-5 with the exception that the dimensions of the individual pieces 52 and connectors 54 are sized to when assembled form a sixteen foot diameter multi-piece tank pad 50 .
- multi-piece oil field tank pad is not limited to the particular number of pieces disclosed in the illustrated embodiments, but rather any suitable number of pieces and connectors may be joined to form any diameter tank pad, as required.
- a multi-piece tank pad 12 may be assembled with six or more pieces that are dimensionally sized to easily be transported and handled at a tank construction site. Similarly, the individual pieces 14 and connectors 16 are easily handled by assemblers at the worksite. The single-sized connector 16 simplifies assembly such that any connector 16 may be fit to join any two adjacent tank pad pieces 14 .
Abstract
A multi-piece storage tank pad is configured to support a storage tank used in oilfield operations. The multi-piece pad includes a plurality of pad pieces where each pad piece has a core coated with a polymeric coating. Each pad piece also defines at least two connector receiving contours. Two pad pieces of the multi-piece pad are joined by a connector. Each connector also has a core that is coated with the polymeric coating. Each connector is separate from the plurality of pad pieces, and each has a shape that corresponds to two adjacent connector receiving contours.
Description
- Pursuant to 35 U.S.C. § 120, this application is a continuation of, and incorporates by reference for all purposes, U.S. patent application Ser. No. 15/148,800, entitled “Multi-Piece Storage Tank Pad With Separate Connectors,” filed May 6, 2016, now U.S. Pat. No. 9,808,692, issued Mar. 6, 2018, and naming Chad Edwin Corbin as inventor, which is a non-provisional application claiming priority to provisional application for patent Ser. No. 62/157,906 filed on May 6, 2015, and entitled “Multi-Piece Storage Tank Pad With Separate Connectors,” which is also hereby incorporated by reference for all purposes.
- This disclosure relates in general to a support pad for a fluid storage tank, and more specifically to a multi-piece storage tank pad with separate connectors used to support storage tanks including storage tanks used in oilfield.
- In the oil and gas industry, it is often necessary to store large quantities of fluids. The storage may be temporary or permanent. To store such fluids, above-ground tanks or vessels are erected. Such tanks are often supported by a base formed of cement, gravel, or other material. Construction of a gravel base may be time consuming and require such construction in advance of erecting or otherwise installing the tank. In addition, a gravel base may require the transport and handling of large quantities of gravel from a remote location to the tank site. Also, a gravel base may allow ground water and rain water to collect, which may cause the storage tank to rust or otherwise corrode, which threatens the structural integrity of the tank and may make leaks more likely. Tank leaks are detrimental to the production or disposal process and also to the environment.
- Embodiments disclosed include a multi-piece pad for supporting a storage tank, as might be found in oil and gas extraction or refining operations. The multi-piece pad includes a plurality of pad pieces where each pad piece has a core coated with a polymeric coating. Each pad piece also defines at least two connector receiving contours. Two pad pieces of the multi-piece pad are joined by a connector. In certain embodiments, the cores are formed from a material that allows the pad piece to be light weight in that it may be handled by hand by two individuals without additional lifting equipment. Each connector also has a core that is coated with the polymeric coating. Each connector is separate from the plurality of pad pieces, and each has a shape that corresponds to two adjacent connector receiving contours.
- According to embodiments, the multi-piece pad includes four, six, eight, ten, or twelve pad pieces. Any suitable number of pad pieces may be joined to form a storage tank pad according to the present disclosure, and preferably an even number of tank pads. Outer pad pieces connect to two other pad pieces with two connectors, and inner pad pieces connect to three other pad pieces with three connectors. A portion of a perimeter of each pad piece forms part of a circumference of a circle when all the pad pieces are assembled.
- According to one embodiment, the core is formed of an expanded polystyrene material and the coating is formed of a polyurea material that is applied by a thermal sprayer that coats the core with polyurea resin that cures to bond with the core to form an impermeable outer shell.
- Technical advantages of tank pads with separate connectors according to the teachings of the present disclosure include tank pads that are easier to bundle and ship than tank pads with integral connector portions. Also, the surface area at the interface of the connector and the individual tank pad pieces allow for drainage between the two pieces.
- Other aspects, features, and advantages will become apparent from the following detailed description when taken in conjunction with the accompanying drawings, which are a part of this disclosure and which illustrate, by way of example, principles of the inventions disclosed.
- The accompanying drawings facilitate an understanding of the various embodiments.
-
FIGS. 1A and 1B are environmental views of a storage tank supported by a multi-piece tank pad with separate connectors according to the teachings of the present disclosure; -
FIG. 2 is a perspective view of the multi-piece tank pad ofFIG. 1 showing six individual pieces and separate connectors; -
FIG. 3 is a detailed perspective view of a connection of adjacent tank pad pieces using a connector; -
FIG. 4 is a perspective view of a connector; -
FIG. 5 is a perspective view of an individual inner tank pad piece showing three perimeter connector receiving contours; -
FIG. 6 is a perspective view of a multi-piece tank pad formed of eight individual tank pad pieces and separate connectors; -
FIG. 7 is a perspective view of a multi-piece tank pad formed of twelve individual tank pad pieces and separate connectors. -
FIGS. 1A and 1B are environmental views of astorage tank 10, which may also referred to as anoilfield storage tank 10 supported by amulti-piece tank pad 12 with separate connectors according to the teachings of the present disclosure. Themulti-piece tank pad 12 supports thestorage tank 10 above ground level, so that the bottom of the tank is elevated and not resting on the earth where it may be exposed to ground water and other corrosive elements. Theoilfield storage tank 10 may be used to store oil, natural gas, fresh water, waste water, water used in hydraulic fracturing operations, gasoline, diesel fuel or any other material associated with oil and gas production that requires storage associated with special processing either to refine into a usable petroleum product or for further processing for environmentally safe disposal. - The
storage tank 10 may be any size and shape. Some common sizes of oilfield storage tanks are diameters of ten feet, twelve feet, fifteen-and-half feet, and twenty-one-and-a-half feet.FIG. 1A shows astorage tank 10 with a diameter of a lower portion that is less than a diameter of themulti-piece tank pad 12.FIG. 1B shows a lower portion of astorage tank 10 with a diameter of the lower portion that is greater than a diameter of themulti-piece tank pad 12. According to the smallerdiameter tank pad 12 embodiment shown inFIG. 1B , thetank pad 12 may be better protected from water accumulation because drainage descending from the side surfaces of thestorage tank 10 drips off thestorage tank 10 onto the ground where it can be received by one or more ground drains. -
FIG. 2 is a perspective view of amulti-piece pad 12 assembled to support astorage tank 10 according to the teachings of the present disclosure. Thetank pad 12 is formed by connecting multiple pieces together to form a large circular pad with a thickness of approximately four to eighteen inches, but any suitable thickness is contemplated by this disclosure. Thetank pad 12 shown inFIG. 2 is formed from six pad pieces 14 joined to each other by sevenconnectors 16, where eachconnector 16 is separate from the pad pieces 14. - Each tank pad piece 14 and each
connector 16 of the multi-piecestorage tank pad 12 is light weight so that it may be easily handled in transport and during assembly at the tank site. The individual pad pieces 14 and theconnectors 16 are made of a core formed of sturdy light weight material that is coated with a polymeric coating. For example, the core may be formed of an extruded foam, such as an extruded polystyrene, an expanded foam, such as an expanded polystyrene material or similar strong, light weight material. According to certain embodiments, the core is formed of extruded polystyrene with a two pound density. In another embodiment, the density of the extruded polystyrene may have a density of three pounds. - In other embodiments, the light weight material may be a polymer with a foaming agent, a honeycomb material, an aerated polymer, a closed cell foam, an open cell foam, or a urethane. The coating may be a polyurea that is sprayed onto the core using a thermal spray system. The light weight material allows at most two individuals to move and position by hand a single pad piece, and in other embodiments a single individual may be able to handle and position a single pad piece.
- The coating may be any suitable coating to coat and bond with the core material to seal the voids of the core from the ambient surroundings. Once cured, the coating bonds to the core and creates an impermeable shell covering the core. The coating may be paint, polyurethane, polyurea, thermoset, thermoplastic, epoxy, and the like. In one embodiment, the coating is a polymeric coating that is marketed under the trade name Ecodur 201 and provided by Castagra Products, Inc. of Reno, Nev. According to certain embodiments, the cured polymeric coating may have a thickness in the range of 40 to 80 mils.
- In the illustrated embodiment, the multi-piece
storage tank pad 12 is formed of four outer pad pieces 18 and two inner pieces 20. Each one of the outer pieces 18 and the inner pieces 20 includes anarcuate perimeter surface 22 that forms part of the overall circular perimeter of themulti-piece tank pad 12 when the pieces are joined together. Each outer pad piece 18 connects to another outer pad piece 18 and to one inner pad piece 20. Two inner pieces 20 connect to each other and each inner pad piece 20 connects to an outer pad piece 18 on each side of the inner pad piece 20. - To join the pieces 14, each individual pad piece 14 is positioned adjacent to another piece 14 such that respective connector-receiving
contours 24 together form a connector-receivingcutout 26. Once two pieces are in position, aconnector 16 may be received by the connector-receivingcutout 26 to join the two pieces 14. - Reference is now made to
FIGS. 3-5 .FIG. 3 is a detail perspective view of a connection between two outer pad pieces 18 with aconnector 16.FIG. 4 is a perspective view of asingle connector 16.FIG. 5 is a perspective view of a single tank pad piece 14, specifically an inner tank pad piece 20. Each connector-receivingcontour 24 includes aconcave contour 28 on a first end and anotherconcave contour 28 on a second end. Theconcave contours 28 receive corresponding convex connector surfaces 30 of theconnector 16 when the tank pad pieces are joined. Theconnector 16 includes anotch 32 disposed between two adjacent convex connector surfaces 30. Thenotch 32 receives a portion of each of two adjacent pad pieces 14. According to an alternate embodiment, thenotch 32 may receive portions of the pad pieces that are more rounded than illustrated. As discussed in more detail below, the polymeric coating may coat rounded surface better than sharp corners. - Once in position, the
connector 16 constrains movement of individual adjacent tank pad pieces 14 with respect to each other. Theconnector 16 generally has a thickness equal to the thickness of the tank pad pieces 14 such that atop surface 34 of the connector is flush with the top surfaces of the tank pad pieces 14. According to certain embodiments, the arcuate surfaces of theconcave contour 28 of the tank pad pieces 14 and theconvex connector surface 30 of theconnector 16 allow tenacious bonding of the polymeric coating, such as polyurea. The coating bonds to and completely coats rounded surfaces better than sharp corner-type surfaces. As such, the coating may better prevent liquid from reaching the voids of the core and being absorbed and retained by such voids in the material of the core. - According to an embodiment of the present disclosure, all
connectors 16 for aparticular multi-piece pad 12 are the same size and shape such that anyconnector 16 can be received by any connector-receivingcutouts 26 in adjacent pad pieces 14. Although theconnectors 16 and the correspondingconnector receiving cutouts 26 are illustrated symmetrical, the present disclosure contemplatesnon-symmetrical connectors 16 andconnector receiving cutouts 26. Also, theconnector receiving cutouts 26 need not extend the full thickness of the pad piece 14. Similarly, theconnector 16 may have a thickness that is less than the thickness of the pad piece 14, and thetop surface 34 of theconnector 16 may or may not be flush with the top surface of the pad pieces 14. -
FIG. 5 illustrates an inner tank pad piece 20. One of the perimeter surfaces is anarcuate perimeter surface 22, and the other three perimeter surfaces define connector-receivingcontours 24. Thus, the inner pad piece 20 connects to three other tank pad pieces 14 in assembling thetank pad 12. The connector-receivingcontours 24 may comprise any suitable percentage of the perimeter sides of an individual tank pad piece 14. For example, the connector-receivingcontour 24 of the shorter perimeter side occupies over 50% of the overall length of the shorter perimeter side. For the longer side of the tank pad piece 14, 20, shown inFIG. 5 , the connector-receivingcontour 24 occupies in a range of 25%-35% of the length of the longer perimeter side of the tank pad piece 20. Accordingly, connector-receivingcontours 24 configured to receive a correspondinglysized connector 16 may have an approximate length to occupy from 25%-75% of a length of a perimeter side of a tank pad piece 14. - With continued reference to
FIG. 5 , the perimeter sides including thearcuate perimeter side 22 are disposed in a generally rectangular shape with theconnector receiving contours 24 extending inward of the peripheral sides. This configuration of a tank pad piece 14, 20 facilitates bundling and shipping of the tank pad pieces 14. In contrast, a tank pad piece with an integrated connector will have one or more sides with a connector portion extending outward from a perimeter side. This extending integrated connector portion may complicate bundling and shipping of tank pad pieces. The multi-piece tank pad with separate connectors of the present disclosure ameliorates this issue by allowing the connectors to be separate from the tank pad pieces 14, so theconnectors 16 can be separately bundled and located separate from the tank pad pieces 14 on a shipping vehicle, such as a semi-trailer truck. - The six
piece tank pad 12 shown inFIG. 2 may have an overall diameter of approximately 10 feet, and therefore supports an oil-field storage tank 10 that is substantially 10 feet in diameter. In certain embodiments, the diameter of the oilfield storage tank 10 may be slightly greater (FIG. 1B ) or slightly less (FIG. 1A ) than the diameter of the assembled multi-piecestorage tank pad 12. Consistent with the discussion above regarding the connector-receivingcontours 24, a diameter of the assembledtank pad 12 shown inFIG. 2 is defined by the junction of three tank pieces 14 with a second set of three tank pieces 14. As such, each junction of two tank pieces 14 includes a pair of connector-receivingcontours 24 that form a connector-receivingcutout 26. The portion of the diameter occupied by the connector-receivingcutouts 26, and thus theconnectors 16 may be 35-65% of the total diameter of the circularassembled tank pad 12. - Reference is made to
FIG. 6 , which is a perspective view of an eight piece oil fieldstorage tank pad 40. The assembled eight piece oil fieldstorage tank pad 40 has a diameter of approximately twelve feet, and therefore supports an oilfield storage tank with a diameter of approximately twelve feet. Similar to the six piece embodiment, the eight piece embodiment can support an oil-field storage tank with a diameter slightly greater or slightly less than twelve feet. Thepieces 42 and theconnectors 44 are generally shaped similar to that described with respect toFIGS. 2-5 with the exception that the dimensions of theindividual pieces 42 andconnectors 44 are sized to form a twelve foot diametermulti-piece tank pad 40 when assembled. - Reference is made to
FIG. 7 , which illustrates a perspective view of a twelve piece multi-piece oilfield tank pad 50. The twelve piece oilfield tank pad 50 has a diameter of approximately sixteen feet. As such, the twelve piece oilfield tank pad 50 is configured to support a storage tank that is substantially sixteen feet in diameter. Similar to the other embodiments, the twelve piece oilfield tank pad 50 can support a storage tank that has a diameter slightly larger or slightly less than sixteen feet. Thepieces 52 and theconnectors 54 are generally shaped similar to that described with respect toFIGS. 2-5 with the exception that the dimensions of theindividual pieces 52 andconnectors 54 are sized to when assembled form a sixteen foot diametermulti-piece tank pad 50. - One skilled in the art will recognize that the multi-piece oil field tank pad is not limited to the particular number of pieces disclosed in the illustrated embodiments, but rather any suitable number of pieces and connectors may be joined to form any diameter tank pad, as required.
- According to the teachings of the present disclosure, a
multi-piece tank pad 12 may be assembled with six or more pieces that are dimensionally sized to easily be transported and handled at a tank construction site. Similarly, the individual pieces 14 andconnectors 16 are easily handled by assemblers at the worksite. The single-sized connector 16 simplifies assembly such that anyconnector 16 may be fit to join any two adjacent tank pad pieces 14. - In the foregoing description of certain embodiments, specific terminology has been resorted to for the sake of clarity. However, the disclosure is not intended to be limited to the specific terms so selected, and it is to be understood that each specific term includes other technical equivalents which operate in a similar manner to accomplish a similar technical purpose. Terms such as “left” and right”, “front” and “rear”, “above” and “below,” “top” and “bottom” and the like are used as words of convenience to provide reference points and are not to be construed as limiting terms.
- In this specification, the word “comprising” is to be understood in its “open” sense, that is, in the sense of “including”, and thus not limited to its “closed” sense, that is the sense of “consisting only of”. A corresponding meaning is to be attributed to the corresponding words “comprise”, “comprised” and “comprises” where they appear.
- In addition, the foregoing describes only some embodiments of the invention(s), and alterations, modifications, additions and/or changes can be made thereto without departing from the scope and spirit of the disclosed embodiments, the embodiments being illustrative and not restrictive.
- Furthermore, invention(s) have been described in connection with what are presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention(s). Also, the various embodiments described above may be implemented in conjunction with other embodiments, e.g., aspects of one embodiment may be combined with aspects of another embodiment to realize yet other embodiments. Further, each independent feature or component of any given assembly may constitute an additional embodiment.
Claims (20)
1. A multi-piece pad for supporting a storage tank, the multi-piece pad comprising:
a plurality of pad pieces that have a core coated on at least a top surface with a polymeric coating, and the plurality of pad pieces configured to have at least two contours configured to receive a connector;
a plurality of connectors separate from the plurality of pad pieces, the plurality of connectors have a water resistant portion and a first end and a second end disposed opposite the first end, at least one of the first end and the second end have a curved surface that receives a portion of adjacent pad pieces to limit movement of one adjacent pad piece with respect to the other adjacent pad piece;
wherein the plurality of pad pieces comprise a first plurality of pad pieces configured to connect to at least two adjacent pad pieces, and a second plurality of pad pieces configured to connect to at least three adjacent pad pieces; and
wherein the plurality of pad pieces and the plurality of connectors form an assembled multi-piece pad with one or more arcuate outer edges forming at least a portion of a perimeter of the assembled multi-piece pad.
2. The multi-piece pad for supporting a storage tank of claim 1 , wherein the core is an expanded polystyrene material and the polymeric coating is a polyurea material.
3. The multi-piece pad for supporting a storage tank of claim 1 , wherein the perimeter of the assembled multi-piece pad includes curved edges.
4. The multi-piece pad for supporting a storage tank of claim 3 , wherein the assembled multi-piece pad includes a seam that extends along a diameter of the assembled multi-piece pad.
5. The multi-piece pad for supporting a storage tank of claim 1 , wherein the assembled multi-piece pad includes a bisecting seam that extends across a portion of the assembled multi-piece pad.
6. The multi-piece pad for supporting a storage tank of claim 1 , wherein more portions of connectors are disposed on a line bisecting the assembled multi-piece pad than portions of pad pieces disposed on the line.
7. The multi-piece pad for supporting a storage tank of claim 1 , wherein the core is a urethane material and the coating is a polymer material.
8. The multi-piece pad for supporting a storage tank of claim 1 , wherein the core is a closed cell foam material and the coating is a polymer material.
9. The multi-piece pad for supporting a storage tank of claim 1 , wherein at least a portion of the plurality of connectors are a closed cell foam.
10. The multi-piece pad for supporting a storage tank of claim 1 , wherein the polymeric coating is a polyurea material.
11. The multi-piece pad for supporting a storage tank of claim 10 , wherein the polyurea material is Ecodur 201.
12. A multi-piece pad for supporting a storage tank, the multi-piece pad comprising:
a plurality of pad pieces that have a core coated on at least a top surface with a polymeric coating, and the plurality of pad pieces configured to have at least two contours configured to receive a connector;
a plurality of connectors separate from the plurality of pad pieces, the plurality of connectors have a water resistant portion and a first end and a second end disposed opposite the first end, at least one of the first end and the second end have a curved surface that receives a portion of adjacent pad pieces to limit movement of one adjacent pad piece with respect to the other adjacent pad piece;
wherein the plurality of pad pieces comprise a first plurality of pad pieces configured to connect to at least two adjacent pad pieces, and a second plurality of pad pieces configured to connect to at least three adjacent pad pieces;
wherein the plurality of pad pieces and the plurality of connectors form an assembled multi-piece pad with one or more arcuate outer edges forming at least a portion of a perimeter of the assembled multi-piece pad configured to substantially support a storage tank having a diameter of at least ten feet.
13. The multi-piece pad for supporting a storage tank of claim 12 , wherein the assembled multi-piece pad includes a diameter, and the diameter of the assembled multi-piece pad is less than the diameter of the storage tank.
14. An assembly comprising:
a pad that includes:
a plurality of pad pieces that have a core coated on at least a top surface with a polymeric coating, and the plurality of pad pieces configured to have at least two contours configured to receive a connector;
a plurality of connectors separate from the plurality of pad pieces, the plurality of connectors have a water resistant portion and a first end and a second end disposed opposite the first end, at least one of the first end and the second end have a curved surface that receives a portion of adjacent pad pieces to limit movement of one adjacent pad piece with respect to the other adjacent pad piece;
wherein the plurality of pad pieces comprise a first plurality of pad pieces configured to connect to at least two adjacent pad pieces, and a second plurality of pad pieces configured to connect to at least three adjacent pad pieces; and
wherein the plurality of pad pieces and the plurality of connectors form an assembled multi-piece pad with one or more arcuate outer edges forming at least a portion of a perimeter of the assembled multi-piece pad; and
a storage tank supported on a top surface of the assembled multi-piece pad, wherein at least a portion of an outer perimeter of the storage tank is not directly supported by the top surface of the assembled multi-piece pad.
15. The assembly of claim 14 , wherein the core is an expanded polystyrene material and the coating is a polyurea material.
16. The assembly of claim 14 , wherein more portions of connectors are disposed on a line bisecting assembled multi-piece pad than portions of pad pieces disposed on the line.
17. The assembly of claim 14 , wherein the core is a urethane material and the coating is a polymer material.
18. The assembly of claim 14 , wherein the core is a closed cell foam material and the coating is a polymer material.
19. The assembly of claim 14 , wherein the core is a honeycomb material and the coating is a polymer material.
20. The assembly of claim 14 , wherein at least a portion of the plurality of connectors are a closed cell foam.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/913,794 US20180194551A1 (en) | 2015-05-06 | 2018-03-06 | Multi-piece storage tank pad with separate connectors |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US201562157906P | 2015-05-06 | 2015-05-06 | |
US15/148,800 US9908692B2 (en) | 2015-05-06 | 2016-05-06 | Multi-piece storage tank pad with separate connectors |
US15/913,794 US20180194551A1 (en) | 2015-05-06 | 2018-03-06 | Multi-piece storage tank pad with separate connectors |
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Application Number | Title | Priority Date | Filing Date |
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US15/148,800 Continuation US9908692B2 (en) | 2015-05-06 | 2016-05-06 | Multi-piece storage tank pad with separate connectors |
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US20180194551A1 true US20180194551A1 (en) | 2018-07-12 |
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US15/148,800 Expired - Fee Related US9908692B2 (en) | 2015-05-06 | 2016-05-06 | Multi-piece storage tank pad with separate connectors |
US15/913,794 Abandoned US20180194551A1 (en) | 2015-05-06 | 2018-03-06 | Multi-piece storage tank pad with separate connectors |
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US15/148,800 Expired - Fee Related US9908692B2 (en) | 2015-05-06 | 2016-05-06 | Multi-piece storage tank pad with separate connectors |
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US (2) | US9908692B2 (en) |
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US20220281678A1 (en) * | 2021-03-04 | 2022-09-08 | The Dragon Group, LLC | Hinge system and method of manufacture |
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Also Published As
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US20160326710A1 (en) | 2016-11-10 |
US9908692B2 (en) | 2018-03-06 |
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