US20050040308A1 - Multi-piece nestable equipment base - Google Patents
Multi-piece nestable equipment base Download PDFInfo
- Publication number
- US20050040308A1 US20050040308A1 US10/644,053 US64405303A US2005040308A1 US 20050040308 A1 US20050040308 A1 US 20050040308A1 US 64405303 A US64405303 A US 64405303A US 2005040308 A1 US2005040308 A1 US 2005040308A1
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- US
- United States
- Prior art keywords
- equipment
- base
- pad
- ribbing
- insert support
- 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.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M5/00—Engine beds, i.e. means for supporting engines or machines on foundations
Definitions
- the present invention relates generally to a base for equipment, and in particular to a lightweight, pre-formed base for equipment.
- U.S. Pat. No. 5,895,025 discloses an equipment base that may be stacked in pairs—the irregular bottom surface of one base nesting within the irregular bottom surface of a second base.
- Another problem with conventional molded plastic equipment bases is that the outer shell of the pad and the support ribs are molded out of the same material, despite the fact that the properties desirable for the outer shell are not often the same as those required for the support ribs.
- the outer shell, including the top surface and four sides of the equipment base, is subject to and must be resistant to ultraviolet (UV) radiation, moisture, organisms, impacts, and many common chemicals.
- UV ultraviolet
- the support ribs are free from such exposure, but must be of adequate strength and stiffness to support the heavy loads applied to the top surface of the base.
- each piece i.e., the outer shell of the pad and the support ribbing, may be constructed from materials having the desired properties for that piece's function, and wherein each piece is capable of nesting with like pieces so that shipping limits on weight and volume are reached simultaneously.
- the present invention relates to a base for equipment, including a pad having a top surface, a plurality of side surfaces, and a hollow core. At least one insert support ribbing mates with the hollow core to construct the base. Furthermore, the hollow core of the pad is adapted to receive the top surface of a similarly-formed second pad such that multiple pads may be stacked one upon another to minimize shipping volume. Likewise, the at least one insert support ribbing is adapted to receive a similarly-formed second at least one insert support ribbing such that multiple support ribbings may be stacked one upon another to minimize shipping volume.
- the outer shell of the pad is molded in one piece, having a top surface, four sides, and a hollow core, constructed out of plastic or a composite material. In such embodiments, it is an object to provide an aesthetically desirable monolithic-looking equipment base. Because the outer shell of the pad is molded separately from the ribbing, it is another object to provide a base that is inexpensive to manufacture.
- the second core piece of the base is constructed from a plastic material or other conventional materials.
- the support ribbing mates with the hollow core of the pad via a snap fit, adhesives, fasteners, or other conventional means.
- FIG. 1 is a top perspective view showing the joinder of the pad and the insert support ribbing in an embodiment of the present invention.
- FIG. 2 is a bottom perspective view showing the insert support ribbing mated with the hollow core in an embodiment of the present invention.
- FIG. 3 is a side view of multiple pads nested for compact shipment in an embodiment of the present invention.
- FIG. 4 is a side view of multiple insert support ribbings nested for compact shipment in an embodiment of the present invention.
- the present invention provides a multi-piece lightweight pre-formed equipment base 10 .
- the equipment base 10 includes a pad 20 and an insert support ribbing 30 .
- the pad 20 has a top surface 22 , a bottom surface 24 , and four downwardly extending side surfaces 26 , creating a hollow core 28 .
- the periphery of the pad 20 forms an edge 25 to provide structural support for the pad 20 .
- the pad 20 is a unitary structure, preferably constructed from molded or thermoformed plastic such as polypropylene, polyethylene, acrylonitrile butadiene styrene (ABS), polystyrene, polyvinyl chloride (PVC), or high impact polystyrene (HIPS) using an A-B injection mold tool.
- plastic such as polypropylene, polyethylene, acrylonitrile butadiene styrene (ABS), polystyrene, polyvinyl chloride (PVC), or high impact polystyrene (HIPS) using an A-B injection mold tool.
- ABS acrylonitrile butadiene styrene
- PVC polyvinyl chloride
- HIPS high impact polystyrene
- steel, aluminum, wood, metals and other non-plastic materials and plastic/non-plastic composites may also be injection molded.
- a typical pad 20 manufactured according to this embodiment is square in shape, two (2) to three (3) inches in height, and available in various sizes, including, in exemplary embodiments, 24 ⁇ 24 inches and 60 ⁇ 60 inches. In other embodiments the pad may be rectangular, such as one embodiment provided for a 48 ⁇ 96 inches pad. It will be appreciated that all dimensions will vary according to the end-use and desired characteristics of the pad.
- top surface 22 and the side surfaces 26 of the pad 20 are generally continuous with no recesses or holes therein because of building codes requirements and aesthetic preferences of contractors and owners. To permit nesting, the side surfaces 26 will not be normal to the top surface 22 , but rather will differ from ninety-degrees by the draft angles present in the utilized molds.
- a pad 20 constructed according to these dimensions and constructed out of either polypropylene or polyethylene can support approximately 300 to 1000 pounds of load on typical soil.
- the insert support ribbing 30 includes a top surface 32 , a bottom surface 34 , and a plurality of upwardly extending ribs 36 , creating a hollow core 37 .
- the insert support ribbing 30 is a unitary structure, preferably constructed using an A-B injection mold tool.
- the support ribbing may also be formed of virtually any materials and composites as the pad 20 . However, unlike the pad 20 , the material of the support ribbing 30 does not typically have any aesthetic requirements, so less expensive materials that provide sufficient sturdiness for support functions can be used.
- FIGS. 1 and 2 depict an exemplary arrangement of features 40 forming such ribs 36 , designed principally to maximize ground contact and strength while minimizing material. Such an arrangement also acts to inhibit lateral and rotational movement of the equipment base 10 relative to the ground.
- the insert support ribbing 30 includes five (5) octangular features 40 arranged in a star-like pattern, having a central feature 42 and four peripheral features 44 radiating from the central feature 42 toward the corners of the insert support ribbing 30 , and connected to the central feature 42 by rectangular support ribs 46 .
- Four (4) additional linear support ribs 46 radiate from the central feature 42 at ninety-degree angles toward the sides of the insert support ribbing 30 .
- the bottom surface 34 of the features 40 contains a series of rectangular and circular holes 38 .
- the holes 38 tend to collect soil, thereby locking the equipment base 10 into position and preventing lateral and rotational movement of the base 10 after equipment has been mounted.
- constructing the bottom surface 34 of the features 40 with such holes 38 minimizes the material necessary for manufacture of the insert support ribbing 30 , thus reducing the overall weight and manufacturing costs of the equipment base 10 .
- FIG. 1 The joinder of the insert support ribbing 30 with the pad 20 is shown in FIG. 1 .
- the insert support ribbing 30 is sized to snap fit into the edge 25 of the pad 20 and fill the hollow core 28 .
- FIG. 2 shows the insert support ribbing 30 mated with the pad 20 .
- embodiments of the equipment base 10 consistent with FIGS. 1 and 2 are particularly useful in maximizing ground contact and strength while minimizing material, and tend to inhibit lateral and rotational movement of the equipment base 10 , other arrangements may be adequate to achieve the desired results.
- the features 40 of the insert support ribbing 30 are shown to be octangular and arranged in a star-like pattern, they need not be so shaped or arranged.
- the insert support ribbing 30 described is a unitary structure, other embodiments of the present invention consist of more than one insert support ribbing 30 .
- the equipment pad 20 be square. Any conventional shape may be employed, including, but not limited to, round, octagonal, rectangular, and the like.
- multiple pads 20 may be stacked one upon another by nesting the top surface 22 of one pad 20 within the hollow core 28 of a second, similarly formed pad 20 ′.
- the top surface 22 of the first pad 20 thus becomes near to flush with the bottom surface 24 of the second pad 20 ′, thereby reducing shipping volume.
- FIG. 4 shows that multiple insert support ribbings 30 may be stacked one upon another by nesting the bottom surface 34 of one insert support ribbing 30 within the hollow core 37 of a second, similarly formed insert support ribbing 30 ′.
- the bottom surface 34 of the first insert support ribbing 30 thus becomes near to flush with the top surface 32 of the second insert support ribbing 30 ′, thereby reducing shipping volume.
- the pads 20 and the insert support ribbings 30 may be stacked while awaiting use.
- the respective components of the equipment base 10 , the pad 20 and the insert support ribbing 30 can be shipped separately.
- the insert support ribbing 30 can be joined with the pad 20 as close to the end use point as preferred to assemble the equipment base 10 . Installation of the equipment base 10 at the construction site or other location requires little site preparation beyond having an essentially flat region. The equipment may then be secured to the base 10 . After use, the insert support ribbing 30 can be disjoined from the pad 20 and both can be reused.
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Abstract
Description
- The present invention relates generally to a base for equipment, and in particular to a lightweight, pre-formed base for equipment.
- It is well known in the art that industrial equipment such as air conditioning condensers, heating units, and electrical transformers should be elevated above the ground in order to protect the equipment from damage caused by vibration or contaminants, e.g., dirt, debris, and moisture. Historically, such equipment was mounted on bases constructed from concrete. Concrete equipment bases proved unsatisfactory because pouring and smoothing the concrete bases at the construction site was very time-consuming and costly, and pre-cast concrete bases were generally too heavy to manipulate or ship economically.
- The dissatisfaction with concrete equipment bases gave rise to the use of pre-cast equipment bases made from composite materials. For instance, U.S. Pat. No. 4,505,449 suggests a composite pad having a polystyrene foam core covered on five sides with a fiberglass and cement composition. Such a composite pad is preferred over a concrete base because it maintains the preferred monolithic appearance of a concrete base, but weighs less than a concrete base and is capable of supporting the same or greater loads than a concrete base. Additionally, pre-cast composite bases, because of their lighter weight, can be installed without heavy equipment and transported with greater ease.
- Recent improvements in the art have been aimed at manipulating either the material used for the core of the equipment base or the material used for the outer pad of the base. For example, U.S. Pat. No. 6,050,539 proposes the use of a moldable lightweight plastic material for the core component, rather than polystyrene foam, but continues to surround the core with a concrete shell. Alternatively, U.S. Pat. No. 4,869,456 suggests retaining the cellular foam core, but constructing the pad out of molded plastic and interspersing the interior of the pad with plastic strengthening ribs. Although both these methods serve to produce a lightweight equipment base, their relative bulk makes them costly to ship. These products typically consume the cube of a shipping vessel (truck or container) well before they reach the weight limit of that shipping vessel.
- To alleviate the costs of transportation, equipment bases capable of being stacked one upon another have been used, thereby minimizing the volume needed for shipping. U.S. Pat. No. 5,895,025, in particular, discloses an equipment base that may be stacked in pairs—the irregular bottom surface of one base nesting within the irregular bottom surface of a second base.
- Another problem with conventional molded plastic equipment bases is that the outer shell of the pad and the support ribs are molded out of the same material, despite the fact that the properties desirable for the outer shell are not often the same as those required for the support ribs. The outer shell, including the top surface and four sides of the equipment base, is subject to and must be resistant to ultraviolet (UV) radiation, moisture, organisms, impacts, and many common chemicals. The support ribs are free from such exposure, but must be of adequate strength and stiffness to support the heavy loads applied to the top surface of the base.
- A need therefore exists for an improved pre-formed equipment base that has the necessary strength to support heavy loads, yet is lightweight, inexpensive to manufacture, aesthetically appealing, easy to transport, simple to install, and takes into account the difference in desired properties between the outer shell and support ribbing.
- The present invention answers this need by providing a multi-piece lightweight pre-formed equipment base wherein each piece, i.e., the outer shell of the pad and the support ribbing, may be constructed from materials having the desired properties for that piece's function, and wherein each piece is capable of nesting with like pieces so that shipping limits on weight and volume are reached simultaneously.
- Generally described, the present invention relates to a base for equipment, including a pad having a top surface, a plurality of side surfaces, and a hollow core. At least one insert support ribbing mates with the hollow core to construct the base. Furthermore, the hollow core of the pad is adapted to receive the top surface of a similarly-formed second pad such that multiple pads may be stacked one upon another to minimize shipping volume. Likewise, the at least one insert support ribbing is adapted to receive a similarly-formed second at least one insert support ribbing such that multiple support ribbings may be stacked one upon another to minimize shipping volume.
- It is thus an object of the present invention to provide an equipment base that allows the outer shell of the pad and the support ribbing to each be constructed out of materials selected for their performance attributes, i.e., materials having the desired properties for the function of that particular part of the equipment base.
- It is a further object of the present invention to provide an equipment base that may be condensed for shipment, thereby reducing transportation costs.
- In an embodiment of the present invention, the outer shell of the pad is molded in one piece, having a top surface, four sides, and a hollow core, constructed out of plastic or a composite material. In such embodiments, it is an object to provide an aesthetically desirable monolithic-looking equipment base. Because the outer shell of the pad is molded separately from the ribbing, it is another object to provide a base that is inexpensive to manufacture.
- In an embodiment of the present invention, the second core piece of the base, the support ribbing, is constructed from a plastic material or other conventional materials. The support ribbing mates with the hollow core of the pad via a snap fit, adhesives, fasteners, or other conventional means. In such embodiments, it is an object to provide an equipment base that may be easily assembled as close to the end use point as possible. Because the support ribbing is separately molded, it is a further object to provide an equipment base that maximizes ground contact and strength, while minimizing material.
- Other objects, features, and advantages of the present invention will become apparent upon inspection of the following detailed description of the preferred embodiment of the invention, taken in conjunction with the drawings and appended claims.
-
FIG. 1 is a top perspective view showing the joinder of the pad and the insert support ribbing in an embodiment of the present invention. -
FIG. 2 is a bottom perspective view showing the insert support ribbing mated with the hollow core in an embodiment of the present invention. -
FIG. 3 is a side view of multiple pads nested for compact shipment in an embodiment of the present invention. -
FIG. 4 is a side view of multiple insert support ribbings nested for compact shipment in an embodiment of the present invention. - Referring to
FIGS. 1 and 2 , the present invention provides a multi-piece lightweight pre-formedequipment base 10. Theequipment base 10 includes apad 20 and an insert support ribbing 30. Thepad 20 has atop surface 22, abottom surface 24, and four downwardly extendingside surfaces 26, creating ahollow core 28. The periphery of thepad 20 forms anedge 25 to provide structural support for thepad 20. Thepad 20 is a unitary structure, preferably constructed from molded or thermoformed plastic such as polypropylene, polyethylene, acrylonitrile butadiene styrene (ABS), polystyrene, polyvinyl chloride (PVC), or high impact polystyrene (HIPS) using an A-B injection mold tool. In alternative embodiments steel, aluminum, wood, metals and other non-plastic materials and plastic/non-plastic composites may also be injection molded. Those of ordinary skill in the art will appreciate that the invention encompasses virtually any material and composites capable of injection molding depending on the desired characteristics of the formed article. - A
typical pad 20 manufactured according to this embodiment is square in shape, two (2) to three (3) inches in height, and available in various sizes, including, in exemplary embodiments, 24×24 inches and 60×60 inches. In other embodiments the pad may be rectangular, such as one embodiment provided for a 48×96 inches pad. It will be appreciated that all dimensions will vary according to the end-use and desired characteristics of the pad. - The
top surface 22 and theside surfaces 26 of thepad 20 are generally continuous with no recesses or holes therein because of building codes requirements and aesthetic preferences of contractors and owners. To permit nesting, theside surfaces 26 will not be normal to thetop surface 22, but rather will differ from ninety-degrees by the draft angles present in the utilized molds. Apad 20 constructed according to these dimensions and constructed out of either polypropylene or polyethylene can support approximately 300 to 1000 pounds of load on typical soil. - The insert support ribbing 30 includes a
top surface 32, abottom surface 34, and a plurality of upwardly extendingribs 36, creating ahollow core 37. The insert support ribbing 30 is a unitary structure, preferably constructed using an A-B injection mold tool. The support ribbing may also be formed of virtually any materials and composites as thepad 20. However, unlike thepad 20, the material of the support ribbing 30 does not typically have any aesthetic requirements, so less expensive materials that provide sufficient sturdiness for support functions can be used. -
FIGS. 1 and 2 depict an exemplary arrangement offeatures 40 formingsuch ribs 36, designed principally to maximize ground contact and strength while minimizing material. Such an arrangement also acts to inhibit lateral and rotational movement of theequipment base 10 relative to the ground. In the embodiment of the invention shown, theinsert support ribbing 30 includes five (5) octangular features 40 arranged in a star-like pattern, having acentral feature 42 and fourperipheral features 44 radiating from thecentral feature 42 toward the corners of theinsert support ribbing 30, and connected to thecentral feature 42 byrectangular support ribs 46. Four (4) additionallinear support ribs 46 radiate from thecentral feature 42 at ninety-degree angles toward the sides of theinsert support ribbing 30. - In one embodiment, the
bottom surface 34 of thefeatures 40 contains a series of rectangular andcircular holes 38. In such an embodiment, theholes 38 tend to collect soil, thereby locking theequipment base 10 into position and preventing lateral and rotational movement of the base 10 after equipment has been mounted. In addition, constructing thebottom surface 34 of thefeatures 40 withsuch holes 38 minimizes the material necessary for manufacture of theinsert support ribbing 30, thus reducing the overall weight and manufacturing costs of theequipment base 10. - The joinder of the insert support ribbing 30 with the
pad 20 is shown inFIG. 1 . Theinsert support ribbing 30 is sized to snap fit into theedge 25 of thepad 20 and fill thehollow core 28.FIG. 2 shows the insert support ribbing 30 mated with thepad 20. - Although embodiments of the
equipment base 10 consistent withFIGS. 1 and 2 are particularly useful in maximizing ground contact and strength while minimizing material, and tend to inhibit lateral and rotational movement of theequipment base 10, other arrangements may be adequate to achieve the desired results. For example, while thefeatures 40 of theinsert support ribbing 30 are shown to be octangular and arranged in a star-like pattern, they need not be so shaped or arranged. Similarly, although the insert support ribbing 30 described is a unitary structure, other embodiments of the present invention consist of more than oneinsert support ribbing 30. Also, other methods of joinder for thepad 20 and theinsert support ribbing 30 may be used, including adhesives, mechanical fasteners, welding, Emabond, stapling, hot staking or other conventional means. Finally, there is no requirement that theequipment pad 20 be square. Any conventional shape may be employed, including, but not limited to, round, octagonal, rectangular, and the like. - As shown in
FIG. 3 ,multiple pads 20 may be stacked one upon another by nesting thetop surface 22 of onepad 20 within thehollow core 28 of a second, similarly formedpad 20′. Thetop surface 22 of thefirst pad 20 thus becomes near to flush with thebottom surface 24 of thesecond pad 20′, thereby reducing shipping volume. - Likewise,
FIG. 4 shows that multipleinsert support ribbings 30 may be stacked one upon another by nesting thebottom surface 34 of one insert support ribbing 30 within thehollow core 37 of a second, similarly formed insert support ribbing 30′. Thebottom surface 34 of the first insert support ribbing 30 thus becomes near to flush with thetop surface 32 of the second insert support ribbing 30′, thereby reducing shipping volume. - Similarly, the
pads 20 and theinsert support ribbings 30 may be stacked while awaiting use. In use, the respective components of theequipment base 10, thepad 20 and theinsert support ribbing 30, can be shipped separately. The insert support ribbing 30 can be joined with thepad 20 as close to the end use point as preferred to assemble theequipment base 10. Installation of theequipment base 10 at the construction site or other location requires little site preparation beyond having an essentially flat region. The equipment may then be secured to thebase 10. After use, the insert support ribbing 30 can be disjoined from thepad 20 and both can be reused. - Although this invention has been described in specific detail with reference to the disclosed embodiments, it will be understood that many variations and modifications may be affected within the spirit and scope of the invention as described in the following claims.
Claims (37)
Priority Applications (1)
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US10/644,053 US20050040308A1 (en) | 2003-08-19 | 2003-08-19 | Multi-piece nestable equipment base |
Applications Claiming Priority (1)
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US10/644,053 US20050040308A1 (en) | 2003-08-19 | 2003-08-19 | Multi-piece nestable equipment base |
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US20050040308A1 true US20050040308A1 (en) | 2005-02-24 |
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US10/644,053 Abandoned US20050040308A1 (en) | 2003-08-19 | 2003-08-19 | Multi-piece nestable equipment base |
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Cited By (9)
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EP2193306A1 (en) * | 2007-08-30 | 2010-06-09 | Hermans, Ty Gerard | Plinths |
WO2014016556A1 (en) * | 2012-07-27 | 2014-01-30 | Caterpillar (Ni) Limited | Base for a generator |
US8740505B1 (en) | 2010-03-11 | 2014-06-03 | J.F.R. Enterprises, Inc. | Erosion control methods and products for equipment pads |
US9016653B1 (en) * | 2012-05-03 | 2015-04-28 | Diversitech Corporation | Molded equipment pad with arc-shaped ribs |
US20160177530A1 (en) * | 2014-12-17 | 2016-06-23 | Richard and Carolyn Koberg Living Trust | Pad for support of equipment and method of producing same |
US9923351B2 (en) * | 2015-09-16 | 2018-03-20 | Gordon Haggott Beckhart | Universal bracket and method |
US10962256B1 (en) | 2020-01-14 | 2021-03-30 | Rectorseal, Llc | Nesting molded equipment support pads |
US20220074223A1 (en) * | 2020-06-19 | 2022-03-10 | Iowat Group Inc. | Foundation Support for Grave Markers |
US20230213237A1 (en) * | 2021-12-31 | 2023-07-06 | J.F.R. Enterprises Inc. | Fairly Distributed Plinth |
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US9371953B2 (en) | 2012-07-27 | 2016-06-21 | Caterpillar (Ni) Limited | Base for a generator |
WO2014016556A1 (en) * | 2012-07-27 | 2014-01-30 | Caterpillar (Ni) Limited | Base for a generator |
US20160177530A1 (en) * | 2014-12-17 | 2016-06-23 | Richard and Carolyn Koberg Living Trust | Pad for support of equipment and method of producing same |
US9670639B2 (en) * | 2014-12-17 | 2017-06-06 | Richard and Carolyn Koberg Living Trust | Pad for support of equipment and method of producing same |
US9923351B2 (en) * | 2015-09-16 | 2018-03-20 | Gordon Haggott Beckhart | Universal bracket and method |
US10962256B1 (en) | 2020-01-14 | 2021-03-30 | Rectorseal, Llc | Nesting molded equipment support pads |
US11421913B2 (en) * | 2020-01-14 | 2022-08-23 | Rectorseal, Llc | Nesting molded equipment support pads |
US20220074223A1 (en) * | 2020-06-19 | 2022-03-10 | Iowat Group Inc. | Foundation Support for Grave Markers |
US20230213237A1 (en) * | 2021-12-31 | 2023-07-06 | J.F.R. Enterprises Inc. | Fairly Distributed Plinth |
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