US20100050335A1 - Cover and Sump Assembly For Preventing Suction Entrapment - Google Patents
Cover and Sump Assembly For Preventing Suction Entrapment Download PDFInfo
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- US20100050335A1 US20100050335A1 US12/534,362 US53436209A US2010050335A1 US 20100050335 A1 US20100050335 A1 US 20100050335A1 US 53436209 A US53436209 A US 53436209A US 2010050335 A1 US2010050335 A1 US 2010050335A1
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- Prior art keywords
- sump
- assembly
- frame
- cover
- conduit
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
- E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
- E04H4/1209—Treatment of water for swimming pools
- E04H4/1236—Bottom drains
Definitions
- the invention relates to a cover and sump assembly for a main drain of a swimming pool or spa that prevents suction entrapment, and more specifically, to a cover and sump assembly having a frame defining a plurality of openings, one or more plates defining a plurality of openings and positioned on the frame, and a sump for collecting water and for receiving the frame.
- the cover and sump assembly reduces the velocity of water flowing through the assembly, uniformly distributes a suction force created by the water flow in said sump, and prevents a vortex of flowing water above the assembly, provides anti-entanglement features to minimize the likelihood of an individual becoming entrapped on the assembly by a suction force produced by a pump in the pool or spa filtering system.
- the cover and sump assembly increases the amount of water flowing through the assembly yet reduces the flow rate and provides safety features mandated by federal law.
- the Federal Pool and Spa Safety Act became effective on Dec. 20, 2008.
- the Act addresses two key issues, namely the manufacture, import, and sale of suction outlet fittings (i.e., drain fittings and covers), and entrapment avoidance systems in public pools and spas.
- the Act requires the following: (1) on or after Dec. 20, 2008 all suction outlet fittings and covers made, imported, or sold in the United States must be certified to comply with ASME/ANSI A 112.19.8 (2007 version); (2) as of Dec. 20, 2008 all public pools and spas, both new and existing, must be equipped with certified covers on every suction outlet; and (3) as of Dec. 20, 2008, every public pool and spa, new and existing, that has a single outlet, other than an unblockable outlet, must employ one or more additional safety features set forth in the Act.
- the Act resulted from an increasing number of deaths and accidents involving pools and spas. There is an annual average of 283 drowning deaths (2003-2005) and 2,700 emergency room treated submersion injuries (2005-2007) in the United States involving children younger than five years of age in pools and spas. From 1997 to 2007, there were 74 reported incidents associated with suction entrapment including nine deaths and 63 injuries.
- the new Act is aimed at reducing the deaths and injuries by making pools safer, securing the environment around them, and educating consumers and industry on pool safety.
- the present invention addresses the requirement for a cover and sump assembly that satisfies new federal regulations and prevents suction entrapment.
- the invention comprises in one embodiment a cover assembly for a drain having a frame defining a plurality of openings and having a base, a crown, and sloped sides; and at least one plate positioned on the crown of the frame and defining a plurality of openings; wherein the cover assembly maximizes the flow of water passing through the assembly, reduces the velocity of water flowing through the assembly, and prevents the formation of a vortex of flowing water substantially adjacent to the cover assembly, all thereby reducing the likelihood of suction entrapment.
- the invention comprises in another embodiment a sump assembly for a drain having a sump for collecting water; a first conduit passing through an opening in the sump and having at least one flange; a second conduit defining an opening along a lower portion thereof and having a first flange, wherein the first and second conduits are in fluid communication with one another; wherein the sump assembly reduces the velocity of water flowing through the sump, uniformly distributes a suction force created by the water flow in the sump and at an opening in the sump, and prevents the formation of a vortex of flowing water substantially adjacent to the sump.
- the term “sump” refers to a reservoir serving as a drain for water in a swimming pool or spa that forms part of the pumping and filtering system.
- the invention comprises a cover and sump assembly for a drain including a frame defining a plurality of openings and having a base, a crown, and sloped sides; at least one plate positioned on the crown of the frame and defining a plurality of openings; a sump defining at least one opening and configured to receive the frame; a first conduit having at least one flange and passing through an opening in the sump; and a second conduit defining an opening along a lower portion of the second conduit and having a first flange, the first and second conduits in fluid communication with one another.
- the cover and sump assembly maximizes the flow of water passing through the assembly, reduces the velocity of water flowing through the assembly, uniformly distributes a suction force created by the water flow in the sump, and prevents the formation of a vortex of flowing water substantially adjacent to the cover and sump assembly.
- FIG. 1 is a perspective view of one embodiment of the cover and sump assembly of the invention
- FIG. 2 is a top plan view of one embodiment of the cover and sump assembly of FIG. 1 ;
- FIG. 3 is an enlarged partial cross-sectional view of one embodiment of the cover and sump assembly of FIG. 1 taken generally along line 3 - 3 of FIG. 2 ;
- FIG. 4 is top plan view of one embodiment of the cover and sump assembly of FIG. 1 absent a cover;
- FIG. 5 is a cross-sectional view of the cover and sump assembly of FIG. 1 taken generally along line 5 - 5 of FIG. 2 ;
- FIG. 6 is a cross-sectional view of the cover and sump assembly of FIG. 1 taken generally along line 6 - 6 of FIG. 5
- FIG. 7 is an enlarged partial sectional view of the cover and sump assembly of FIG. 1 ;
- FIG. 8 is an enlarged partial sectional view of one embodiment of the cover and sump assembly of FIG. 1 taken generally along line 8 - 8 of FIG. 4 ;
- FIG. 9 is a top plan view of an anchor template of the cover and sump assembly of FIG. 1 ;
- FIG. 10 is a perspective view of the sump assembly flange of FIG. 1 ;
- FIG. 11 is an partial sectional view of the cover and sump assembly of FIG. 1 ;
- FIG. 12 is an enlarged partial sectional view referenced in FIG. 11 of one embodiment of the cover and sump assembly of FIG. 1 ;
- FIG. 13 is a partial sectional view of one embodiment of the cover and sump assembly of FIG. 1 ;
- FIG. 14 is a partial sectional view of one embodiment of the cover and sump assembly of FIG. 1 ;
- FIG. 15 is an enlarged partial sectional view of one embodiment of the cover and sump assembly of FIG. 1 ;
- FIG. 16 is top plan view of one embodiment of the cover and sump assembly of FIG. 1 ;
- FIG. 17 is a cross-sectional view of the cover and sump assembly of FIG. 1 taken generally along line 17 - 17 of FIG. 16 ;
- FIG. 18 is an enlarged partial sectional view referenced in FIG. 17 of one embodiment of the cover and sump assembly of FIG. 1 ;
- FIG. 19 is an enlarged partial sectional view referenced in FIG. 17 of one embodiment of the cover and sump assembly of FIG. 1 ;
- FIG. 20 is top plan view of one embodiment of the cover assembly of FIG. 1 ;
- FIG. 21 is an enlarged partial sectional view of one embodiment of the cover and sump assembly of FIG. 1 ;
- FIG. 22 is a top plan view of one embodiment of a test plate of the cover and sump assembly of FIG. 1 .
- the invention encompasses a cover assembly 10 for a main drain assembly 17 of a swimming pool comprising a frame 11 and at least one plate 12 positioned on the frame 11 .
- the frame 11 defines a plurality of openings 13 and has a base 14 , a crown 15 , and sloped sides 16 . In one embodiment, the sides have a 40% slope.
- the height (D) of the frame 11 is no more than 17 ⁇ 8 inches so as not to exceed federal mandates calling for a maximum of 2 inches of height.
- the lower edge of the frame 11 extends inward thereby providing additional bearing surface and distributing the load.
- the lower edge of the frame 11 extends inwardly beyond the sloped sides 16 of the frame 11 by, for example, 0.25 inches to allow ample room to shift or adjust the position of the cover assembly 10 over the top of an existing sump and lock the cover assembly 10 into position.
- the plate 12 is positioned on the crown 15 of the frame 11 . It will be understood that one or more plates 12 may be positioned over an opening 19 on the frame 11 depending upon the dimensions of the frame 11 as determined by the dimensions of the main drain.
- the plate 12 defines a plurality of openings 21 .
- the openings 13 , 21 in the frame 11 and plate 12 permit water to flow from a pool or spa into a sump and throughout the pumping and filtering system of the pool or spa. Stated differently, the pumping and filtering system creates a suction force that draws water from the pool through the cover assembly 10 into the sump 25 and then through the conduits 28 , 32 forming the pumping and filtering system.
- the cover assembly 10 maximizes the flow of water passing through the assembly 17 , reduces the velocity of water flowing through the assembly, and prevents the formation of a vortex of flowing water substantially adjacent to the cover assembly 10 .
- the frame 11 and plate 12 are substantially rectangular in shape. It will be understood, however, that the frame 11 and plate 12 may be any number of shapes that meet the objective of preventing suction entrapment. As depicted in the figures, the openings 13 , 21 in the frame 11 and plate 12 are substantially oblong. It will be understood, however, that the openings 13 , 21 may be any number of shapes that permit the flow of water and achieve the desired results of reducing the velocity of the flowing water and preventing the formation of a vortex of flowing water substantially adjacent to the cover assembly 10 . In one embodiment, the openings 13 , 21 measure 0.25 inches in width by 1.75 inches in length.
- the width of the openings 13 , 21 is less than the minimum required by law and prevents an individual from passing portions of a finger through the openings 13 , 21 and becoming trapped under water at a main drain.
- the pattern of openings 21 on the plate 12 provides sufficient area to create a non-slip finish, thereby minimizing the likelihood of an individual slipping on cover assemblies positioned several feet below the surface of the water and causing injury.
- the size of the openings 13 , 21 in the cover assembly 10 lessens the likelihood of hair entanglement which could lead to drowning.
- the relatively small width of the openings 13 , 21 reduces the likelihood of hair entanglement.
- the openings 13 , 21 are formed in the frame 11 and plate 12 by a press, whereby the exterior sides of the openings are smooth and slightly beveled, while the interior sides of the openings include small protrusions with rough edges which will likely cut any hair becoming entangled in the opening upon strain.
- the plurality of openings 13 in the frame 11 extend along the slope of the frame sides to the lower edge of the base 14 to promote suction of foreign object debris into a sump assembly 24 .
- the openings 13 extend all the way to the pool bottom surface thereby facilitating collection of debris on the pool bottom into the sump assembly 24 .
- the frame 11 and plate 12 of the cover assembly 10 each define at least one opening 18 for receiving a fastener 22 .
- the openings 18 are correspondingly aligned with one another to permit any number of fasteners 22 to secure the plate 12 to the crown 15 of the frame 11 over the larger opening 26 of the sump.
- fasteners 22 include exposed security screws that require removal be accomplished with a specialized tool; thereby providing an enhanced safety feature. Stated differently, an individual in the pool will not be able to readily remove the plate 12 from the crown 15 of the frame 11 absent a tool.
- the cover assembly 10 is designed to provide the maximum area available to ensure low velocity of water flow through the top and sides of the plate 12 and frame 11 , respectively.
- the novel cover assembly 10 ensures that the water flow velocity does not exceed 11 ⁇ 2 feet/second as mandated by law.
- the cover assembly 10 maximizes the area for water flow and lowers the velocity of water moving through openings in the frame 11 and plate 12 .
- the reduction of the water flow velocity reduces potential hair entanglements and prevents human entrapment risks associated with main drains.
- the ratio of the open area of the cover assembly 10 to the area within the sump increases, therefore reducing the velocity of water flow even further and providing the highest degree of safety while exceeding required standards.
- the cover assembly 10 includes at least one removable channel 23 extending across the crown 15 of the frame 11 and removably secured to sides of the frame 11 .
- the channel 23 permits the use of multiple modular plates 12 required to cover the opening 19 at the crown 15 of the frame 11 . Accordingly, the plates 12 can be manufactured in a uniform size thereby increasing manufacturing efficiencies.
- the cover assembly 10 may be mounted to the pool wall or floor of the pool depending upon the location of the drain.
- the frame 11 and plates 12 are formed from stainless steel. It will be understood, however, that the frame 11 and plate 12 may be formed from any number of materials providing sufficient strength as required by federal mandates.
- the cover assembly 10 can be mounted on prefabricated sumps during new construction and on existing sumps during renovation (i.e., retrofit). In one embodiment discussed herein, the cover assembly 10 forms a part of a complete sump assembly 24 including, among other elements, a sump 25 , an inlet pipe or first conduit 28 , and a second conduit 32 having at least one flange 33 and an opening 34 in a lower portion thereof.
- the cover assembly 10 is installed over an existing sump.
- the invention provides fastening brackets 30 and fasteners 22 , a vertical wall mounted flange (not shown) with anchoring fasteners 22 , and various fasteners 22 for securing the cover assembly 10 to an existing sump.
- Retrofit applications will also require the attachment of a conduit 32 onto the existing conduit, wherein the new conduit 32 defines an opening 34 on a lower portion thereof. This will be discussed hereinafter when describing the sump assembly 24 .
- the invention also provides for an anchor template 40 for use in retrofit applications.
- the anchor template 40 is designed to identify the proper mounting position for the frame 11 onto the sump and ensure proper alignment of openings 18 and fasteners 22 securing the cover assembly 10 to the sump.
- the anchor template 40 is positioned between the sump assembly 24 and the cover assembly 10 .
- the anchor template 40 is rectangular in shape and defines at least one opening 41 in each side portion, wherein the openings are offset from a midway point of each side by a desired distance.
- the openings 41 may be offset at a distance x from a center point to facilitate alignment of openings 18 in the cover assembly 10 with openings 26 in the upper portions of the existing sump assembly 24 during retrofit applications.
- this permits the cover assembly 10 to be aligned and secured to on any number of sump assemblies of various sizes.
- the anchor template further defines a main opening 42 that permits water to flow therein.
- the invention provides a sump assembly 24 for a drain having a sump 25 for collecting water, a first conduit 28 passing through an opening 20 in the sump and having at least one flange 29 , and a second conduit 32 defining an opening 34 along a lower portion thereof and having a first flange 33 , wherein the first and second conduits 28 , 32 are in fluid communication with one another.
- the sump 25 defines at least one opening 26 and has a flange 27 at an upper portion thereof.
- the first conduit 28 passes through an opening 20 in the sump wall and includes at least one flange 29 .
- the second conduit 32 defines an opening 34 along a lower portion of the second conduit 32 and includes a flange 33 .
- the opening 34 provides for a suction port 38 that is oriented horizontally as opposed to conventional suction ports that are oriented vertically. The reorientation of the suction port reduces the velocity of flowing water at the suction opening 26 in the sump.
- the second conduit 32 and its opening 34 also increases the distance between the bottom of the plate 12 and the suction port 38 thereby exceeding the minimum distance required to satisfy ASTM 112 guidelines.
- the minimum area of the suction opening 34 is at least one-and-a-quarter (1.25 times) the area of the conduit or pipe entering the sump. This greatly reduces the velocity and turbulence and the potential for water vortexes in the sump.
- the suction opening 34 is designed to provide a uniform draw of the flowing water into the sump.
- a uniform draw of flowing water is accomplished by providing the second conduit 32 and its opening extending along at least a portion of the length of the lower portions of the second conduit 32 , wherein the opening extends perpendicular to a vertical axis defined by the sump.
- a mounting plate 36 is provided that is positioned between the first and second conduits 28 , 32 (see FIG. 17 ).
- the mounting plate 36 facilitates retrofit of the second conduit to the first conduit.
- the mounting flange also includes holes drilled through the flange which provide the fastenings ports for connection to the existing sump inlet.
- the first and second conduits 28 , 32 are in fluid communication with one another, wherein the second conduit 32 receives a flow of water from the sump 25 and advances the flowing water to the first conduit 28 .
- the sump assembly 24 reduces the velocity of water flowing through the sump 25 , uniformly distributes a suction force created by the water flow at the top of the sump, and prevents the formation of a vortex of flowing water substantially adjacent (i.e., above) to the sump.
- the sump assembly 24 may also include an anchor template 40 for identifying a mounting position for a cover assembly 10 on the sump.
- the anchor template 40 ensures alignment holes for the fasteners 22 for securing the cover assembly 10 to the sump.
- the anchor template 40 is substantially rectangular and defines at least one opening 41 for receiving a fastener. The opening 41 is offset from a midway point of each side of the template 40 by a desired distance x to facilitate alignment of a cover assembly to the sump.
- the flange 27 of the first conduit 28 is capable of receiving a test plate 35 thereby facilitating the testing of a pumping and filtration system of which the sump assembly 24 is in fluid communication.
- the sump assembly 24 may further include a hydrostatic relief valve assembly 37 positioned at a lower portion of the sump 25 .
- the relief valve assembly 37 is spaced apart from the first and second conduits 28 , 32 to ensure proper operation of the relief valve.
- the invention may also provide a mounting ring or flange 43 for mounting the second conduit 32 to an existing conduit or sump inlet.
- the flange includes a female thread 44 tapped into the flange. The threads serve to fasten the second conduit 32 .
- the invention provides a cover and sump assembly 17 for a drain, wherein the cover and sump assembly 17 comprises a frame 11 , at least one plate 12 positioned on the frame 11 , a sump for collecting water and configured to receive the frame 11 , a first conduit 28 passing through an opening 26 in the sump, and a second conduit 32 defining an opening 34 along a lower portion thereof and in communication with the first conduit 28 .
- the frame 11 includes a base 14 , a crown 15 , and sloped sides 16 , wherein the frame 11 defines a plurality of openings 13 .
- the plate 12 defines a plurality of openings 21 and is positioned on the crown 15 of the frame 11 .
- the plurality of openings 13 in the frame extend along the sloped sides 16 to the lower edge of the base 14 to promote suction of foreign object debris into the sump 25 .
- the frame 11 and plate 12 form a cover assembly 10 .
- the edges of the frame 11 extend beyond a perimeter defined by upper portions of the sump 25 .
- the sump and cover assembly 17 also includes at least one removable channel 23 extending across the crown 15 of the frame 11 and is removably secured to sides of the frame 11 .
- the plate 12 may be modular such that removable channel supports a plurality of plates.
- the sump 25 defines at least one opening 26 , and one of the openings receives the frame 11 .
- the sump 25 defines a flange 27 extending around its upper portion or upper edges (i.e., its perimeter). In one embodiment, the ratio of the diameter of the frame to the diameter of the sump is between about 0.86 and 1.0.
- the first conduit 28 has at least one flange 29 for receiving the inlet pipe of the pumping and filtration system, and another flange 31 for receiving the second conduit 32 .
- the second flange 31 and second conduit 32 may be connected by any number of means.
- the second flange 31 and second conduit 32 may be connected by screws, bolts, flanges, male and female adapter connection, a coupling, mounting rings, or similar connectors capable of securing the second flange 31 and the second conduit 32 to one another.
- the first conduit 28 passes through one of the openings 20 in the sump 25 .
- the second conduit 32 defines at least one opening 34 along a lower portion thereof.
- the opening 34 in the second conduit 32 may be any number of shapes.
- the opening 34 may extend lengthwise along the entire lower portion of the second conduit 32 .
- the opening 34 may be defined by a plurality of holes, slits, or shaped openings.
- the opening facilitates the anti-entrapment features of the invention.
- the second conduit 32 includes a first connector or flange 33 for connecting the second conduit 32 to the first conduit 28 .
- the first and second conduits 28 , 32 are in communication with one another.
- the novel cover and sump assembly 17 maximizes the flow of water passing through the assembly, reduces the velocity of water flowing through the assembly, uniformly distributes a suction force created by the water flow in the sump, and prevents the formation of a vortex of flowing water substantially adjacent to the cover and sump assembly 17 .
- the invention provides a mounting flange or connector having a standard flange bolt pattern depending upon the size of the conduit.
- the mounting flange may include any number of threads, screws, bolts, or similar connectors capable of securing the flange to the conduit.
- the mounting flange includes holes for mounting hardware on the side of the existing sump.
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Abstract
The invention relates to a cover and sump assembly for a main drain of a pool or spa that prevents suction entrapment, and specifically, to an assembly having a frame with openings, plates with openings positioned on the frame, and a sump for collecting water and receiving the frame. The assembly reduces the velocity of water flowing there through, uniformly distributes a suction force created by water flowing into the sump, prevents a vortex of flowing water above the assembly, and provides anti-entanglement features to minimize the likelihood of an individual becoming entrapped on the assembly by a suction force produced by a pump in the pool or spa filtering system. The assembly includes a conduit defining an opening along a lower portion thereof that reduces the velocity of flowing water at the suction opening in the sump by reorienting the suction port from a vertical to a horizontal orientation.
Description
- This application claims the benefit of and priority to commonly owned U.S. Provisional Patent Application Ser. No. 61/091,998, filed Aug. 26, 2008, in the U.S. Patent and Trademark Office. This application incorporates the provisional application by reference in its entirety.
- The invention relates to a cover and sump assembly for a main drain of a swimming pool or spa that prevents suction entrapment, and more specifically, to a cover and sump assembly having a frame defining a plurality of openings, one or more plates defining a plurality of openings and positioned on the frame, and a sump for collecting water and for receiving the frame. As configured, the cover and sump assembly reduces the velocity of water flowing through the assembly, uniformly distributes a suction force created by the water flow in said sump, and prevents a vortex of flowing water above the assembly, provides anti-entanglement features to minimize the likelihood of an individual becoming entrapped on the assembly by a suction force produced by a pump in the pool or spa filtering system. In other words, the cover and sump assembly increases the amount of water flowing through the assembly yet reduces the flow rate and provides safety features mandated by federal law.
- The Federal Pool and Spa Safety Act became effective on Dec. 20, 2008. The Act addresses two key issues, namely the manufacture, import, and sale of suction outlet fittings (i.e., drain fittings and covers), and entrapment avoidance systems in public pools and spas. The Act requires the following: (1) on or after Dec. 20, 2008 all suction outlet fittings and covers made, imported, or sold in the United States must be certified to comply with ASME/ANSI A 112.19.8 (2007 version); (2) as of Dec. 20, 2008 all public pools and spas, both new and existing, must be equipped with certified covers on every suction outlet; and (3) as of Dec. 20, 2008, every public pool and spa, new and existing, that has a single outlet, other than an unblockable outlet, must employ one or more additional safety features set forth in the Act.
- The Act resulted from an increasing number of deaths and accidents involving pools and spas. There is an annual average of 283 drowning deaths (2003-2005) and 2,700 emergency room treated submersion injuries (2005-2007) in the United States involving children younger than five years of age in pools and spas. From 1997 to 2007, there were 74 reported incidents associated with suction entrapment including nine deaths and 63 injuries. The new Act is aimed at reducing the deaths and injuries by making pools safer, securing the environment around them, and educating consumers and industry on pool safety.
- Accordingly, the present invention addresses the requirement for a cover and sump assembly that satisfies new federal regulations and prevents suction entrapment.
- The invention comprises in one embodiment a cover assembly for a drain having a frame defining a plurality of openings and having a base, a crown, and sloped sides; and at least one plate positioned on the crown of the frame and defining a plurality of openings; wherein the cover assembly maximizes the flow of water passing through the assembly, reduces the velocity of water flowing through the assembly, and prevents the formation of a vortex of flowing water substantially adjacent to the cover assembly, all thereby reducing the likelihood of suction entrapment.
- The invention comprises in another embodiment a sump assembly for a drain having a sump for collecting water; a first conduit passing through an opening in the sump and having at least one flange; a second conduit defining an opening along a lower portion thereof and having a first flange, wherein the first and second conduits are in fluid communication with one another; wherein the sump assembly reduces the velocity of water flowing through the sump, uniformly distributes a suction force created by the water flow in the sump and at an opening in the sump, and prevents the formation of a vortex of flowing water substantially adjacent to the sump. As used herein, the term “sump” refers to a reservoir serving as a drain for water in a swimming pool or spa that forms part of the pumping and filtering system.
- In yet another embodiment, the invention comprises a cover and sump assembly for a drain including a frame defining a plurality of openings and having a base, a crown, and sloped sides; at least one plate positioned on the crown of the frame and defining a plurality of openings; a sump defining at least one opening and configured to receive the frame; a first conduit having at least one flange and passing through an opening in the sump; and a second conduit defining an opening along a lower portion of the second conduit and having a first flange, the first and second conduits in fluid communication with one another. The cover and sump assembly maximizes the flow of water passing through the assembly, reduces the velocity of water flowing through the assembly, uniformly distributes a suction force created by the water flow in the sump, and prevents the formation of a vortex of flowing water substantially adjacent to the cover and sump assembly.
- The foregoing and other objects and advantages of the invention and the manner in which the same are accomplished will become clearer based on the following detailed description taken in conjunction with the accompanying drawings in which:
-
FIG. 1 is a perspective view of one embodiment of the cover and sump assembly of the invention; -
FIG. 2 is a top plan view of one embodiment of the cover and sump assembly ofFIG. 1 ; -
FIG. 3 is an enlarged partial cross-sectional view of one embodiment of the cover and sump assembly ofFIG. 1 taken generally along line 3-3 ofFIG. 2 ; -
FIG. 4 is top plan view of one embodiment of the cover and sump assembly ofFIG. 1 absent a cover; -
FIG. 5 is a cross-sectional view of the cover and sump assembly ofFIG. 1 taken generally along line 5-5 ofFIG. 2 ; -
FIG. 6 is a cross-sectional view of the cover and sump assembly ofFIG. 1 taken generally along line 6-6 ofFIG. 5 -
FIG. 7 is an enlarged partial sectional view of the cover and sump assembly ofFIG. 1 ; -
FIG. 8 is an enlarged partial sectional view of one embodiment of the cover and sump assembly ofFIG. 1 taken generally along line 8-8 ofFIG. 4 ; -
FIG. 9 is a top plan view of an anchor template of the cover and sump assembly ofFIG. 1 ; -
FIG. 10 is a perspective view of the sump assembly flange ofFIG. 1 ; -
FIG. 11 is an partial sectional view of the cover and sump assembly ofFIG. 1 ; -
FIG. 12 is an enlarged partial sectional view referenced inFIG. 11 of one embodiment of the cover and sump assembly ofFIG. 1 ; -
FIG. 13 is a partial sectional view of one embodiment of the cover and sump assembly ofFIG. 1 ; -
FIG. 14 is a partial sectional view of one embodiment of the cover and sump assembly ofFIG. 1 ; -
FIG. 15 is an enlarged partial sectional view of one embodiment of the cover and sump assembly ofFIG. 1 ; -
FIG. 16 is top plan view of one embodiment of the cover and sump assembly ofFIG. 1 ; -
FIG. 17 is a cross-sectional view of the cover and sump assembly ofFIG. 1 taken generally along line 17-17 ofFIG. 16 ; -
FIG. 18 is an enlarged partial sectional view referenced inFIG. 17 of one embodiment of the cover and sump assembly ofFIG. 1 ; -
FIG. 19 is an enlarged partial sectional view referenced inFIG. 17 of one embodiment of the cover and sump assembly ofFIG. 1 ; -
FIG. 20 is top plan view of one embodiment of the cover assembly ofFIG. 1 ; -
FIG. 21 is an enlarged partial sectional view of one embodiment of the cover and sump assembly ofFIG. 1 ; and -
FIG. 22 is a top plan view of one embodiment of a test plate of the cover and sump assembly ofFIG. 1 . - The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a preferred embodiment of the invention is shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout.
- In one embodiment the invention encompasses a
cover assembly 10 for amain drain assembly 17 of a swimming pool comprising a frame 11 and at least oneplate 12 positioned on the frame 11. The frame 11 defines a plurality ofopenings 13 and has abase 14, a crown 15, and sloped sides 16. In one embodiment, the sides have a 40% slope. In one embodiment, the height (D) of the frame 11 is no more than 1⅞ inches so as not to exceed federal mandates calling for a maximum of 2 inches of height. The lower edge of the frame 11 extends inward thereby providing additional bearing surface and distributing the load. In one embodiment, the lower edge of the frame 11 extends inwardly beyond the sloped sides 16 of the frame 11 by, for example, 0.25 inches to allow ample room to shift or adjust the position of thecover assembly 10 over the top of an existing sump and lock thecover assembly 10 into position. - The
plate 12 is positioned on the crown 15 of the frame 11. It will be understood that one ormore plates 12 may be positioned over anopening 19 on the frame 11 depending upon the dimensions of the frame 11 as determined by the dimensions of the main drain. Theplate 12 defines a plurality ofopenings 21. Theopenings plate 12 permit water to flow from a pool or spa into a sump and throughout the pumping and filtering system of the pool or spa. Stated differently, the pumping and filtering system creates a suction force that draws water from the pool through thecover assembly 10 into thesump 25 and then through theconduits - As configured, the
cover assembly 10 maximizes the flow of water passing through theassembly 17, reduces the velocity of water flowing through the assembly, and prevents the formation of a vortex of flowing water substantially adjacent to thecover assembly 10. - In one embodiment, the frame 11 and
plate 12 are substantially rectangular in shape. It will be understood, however, that the frame 11 andplate 12 may be any number of shapes that meet the objective of preventing suction entrapment. As depicted in the figures, theopenings plate 12 are substantially oblong. It will be understood, however, that theopenings cover assembly 10. In one embodiment, theopenings openings openings openings 21 on theplate 12 provides sufficient area to create a non-slip finish, thereby minimizing the likelihood of an individual slipping on cover assemblies positioned several feet below the surface of the water and causing injury. Furthermore, the size of theopenings cover assembly 10 lessens the likelihood of hair entanglement which could lead to drowning. Specifically, the relatively small width of theopenings openings plate 12 by a press, whereby the exterior sides of the openings are smooth and slightly beveled, while the interior sides of the openings include small protrusions with rough edges which will likely cut any hair becoming entangled in the opening upon strain. - In one embodiment, the plurality of
openings 13 in the frame 11 extend along the slope of the frame sides to the lower edge of the base 14 to promote suction of foreign object debris into asump assembly 24. In this configuration, theopenings 13 extend all the way to the pool bottom surface thereby facilitating collection of debris on the pool bottom into thesump assembly 24. - The frame 11 and
plate 12 of thecover assembly 10 each define at least oneopening 18 for receiving afastener 22. Theopenings 18 are correspondingly aligned with one another to permit any number offasteners 22 to secure theplate 12 to the crown 15 of the frame 11 over thelarger opening 26 of the sump. In one embodiment,fasteners 22 include exposed security screws that require removal be accomplished with a specialized tool; thereby providing an enhanced safety feature. Stated differently, an individual in the pool will not be able to readily remove theplate 12 from the crown 15 of the frame 11 absent a tool. - The
cover assembly 10 is designed to provide the maximum area available to ensure low velocity of water flow through the top and sides of theplate 12 and frame 11, respectively. Thenovel cover assembly 10 ensures that the water flow velocity does not exceed 1½ feet/second as mandated by law. Thecover assembly 10 maximizes the area for water flow and lowers the velocity of water moving through openings in the frame 11 andplate 12. The reduction of the water flow velocity reduces potential hair entanglements and prevents human entrapment risks associated with main drains. - When installed over a sump less than, for example, 18″×18″ or 24″×24″, the ratio of the open area of the
cover assembly 10 to the area within the sump increases, therefore reducing the velocity of water flow even further and providing the highest degree of safety while exceeding required standards. - In another embodiment, the
cover assembly 10 includes at least oneremovable channel 23 extending across the crown 15 of the frame 11 and removably secured to sides of the frame 11. Depending upon the desired dimensions of the frame 11, thechannel 23 permits the use of multiplemodular plates 12 required to cover theopening 19 at the crown 15 of the frame 11. Accordingly, theplates 12 can be manufactured in a uniform size thereby increasing manufacturing efficiencies. - The
cover assembly 10 may be mounted to the pool wall or floor of the pool depending upon the location of the drain. In one embodiment, the frame 11 andplates 12 are formed from stainless steel. It will be understood, however, that the frame 11 andplate 12 may be formed from any number of materials providing sufficient strength as required by federal mandates. Thecover assembly 10 can be mounted on prefabricated sumps during new construction and on existing sumps during renovation (i.e., retrofit). In one embodiment discussed herein, thecover assembly 10 forms a part of acomplete sump assembly 24 including, among other elements, asump 25, an inlet pipe orfirst conduit 28, and asecond conduit 32 having at least one flange 33 and anopening 34 in a lower portion thereof. - In retrofit applications, the
cover assembly 10 is installed over an existing sump. In this case, the invention providesfastening brackets 30 andfasteners 22, a vertical wall mounted flange (not shown) with anchoringfasteners 22, andvarious fasteners 22 for securing thecover assembly 10 to an existing sump. Retrofit applications will also require the attachment of aconduit 32 onto the existing conduit, wherein thenew conduit 32 defines anopening 34 on a lower portion thereof. This will be discussed hereinafter when describing thesump assembly 24. - Referring to
FIGS. 9-10 , the invention also provides for ananchor template 40 for use in retrofit applications. Theanchor template 40 is designed to identify the proper mounting position for the frame 11 onto the sump and ensure proper alignment ofopenings 18 andfasteners 22 securing thecover assembly 10 to the sump. As configured, theanchor template 40 is positioned between thesump assembly 24 and thecover assembly 10. In one embodiment, theanchor template 40 is rectangular in shape and defines at least oneopening 41 in each side portion, wherein the openings are offset from a midway point of each side by a desired distance. For example, theopenings 41 may be offset at a distance x from a center point to facilitate alignment ofopenings 18 in thecover assembly 10 withopenings 26 in the upper portions of the existingsump assembly 24 during retrofit applications. Advantageously, this permits thecover assembly 10 to be aligned and secured to on any number of sump assemblies of various sizes. The anchor template further defines a main opening 42 that permits water to flow therein. - In another embodiment, and referring to
FIG. 5 , the invention provides asump assembly 24 for a drain having asump 25 for collecting water, afirst conduit 28 passing through anopening 20 in the sump and having at least oneflange 29, and asecond conduit 32 defining anopening 34 along a lower portion thereof and having a first flange 33, wherein the first andsecond conduits - As illustrated in
FIG. 5 , thesump 25 defines at least oneopening 26 and has aflange 27 at an upper portion thereof. Thefirst conduit 28 passes through anopening 20 in the sump wall and includes at least oneflange 29. Thesecond conduit 32 defines anopening 34 along a lower portion of thesecond conduit 32 and includes a flange 33. In operation, theopening 34 provides for asuction port 38 that is oriented horizontally as opposed to conventional suction ports that are oriented vertically. The reorientation of the suction port reduces the velocity of flowing water at thesuction opening 26 in the sump. Thesecond conduit 32 and itsopening 34 also increases the distance between the bottom of theplate 12 and thesuction port 38 thereby exceeding the minimum distance required to satisfy ASTM 112 guidelines. The minimum area of thesuction opening 34 is at least one-and-a-quarter (1.25 times) the area of the conduit or pipe entering the sump. This greatly reduces the velocity and turbulence and the potential for water vortexes in the sump. Thesuction opening 34 is designed to provide a uniform draw of the flowing water into the sump. - Referring to
FIGS. 5 and 17 , a uniform draw of flowing water is accomplished by providing thesecond conduit 32 and its opening extending along at least a portion of the length of the lower portions of thesecond conduit 32, wherein the opening extends perpendicular to a vertical axis defined by the sump. - During retrofit applications, a mounting
plate 36 is provided that is positioned between the first andsecond conduits 28, 32 (seeFIG. 17 ). The mountingplate 36 facilitates retrofit of the second conduit to the first conduit. The mounting flange also includes holes drilled through the flange which provide the fastenings ports for connection to the existing sump inlet. - As illustrated in
FIGS. 5 and 17 , the first andsecond conduits second conduit 32 receives a flow of water from thesump 25 and advances the flowing water to thefirst conduit 28. - Advantageously, the
sump assembly 24 reduces the velocity of water flowing through thesump 25, uniformly distributes a suction force created by the water flow at the top of the sump, and prevents the formation of a vortex of flowing water substantially adjacent (i.e., above) to the sump. - As illustrated in
FIGS. 9-10 , thesump assembly 24 may also include ananchor template 40 for identifying a mounting position for acover assembly 10 on the sump. As described above, theanchor template 40 ensures alignment holes for thefasteners 22 for securing thecover assembly 10 to the sump. In one embodiment depicted inFIG. 10 , theanchor template 40 is substantially rectangular and defines at least oneopening 41 for receiving a fastener. Theopening 41 is offset from a midway point of each side of thetemplate 40 by a desired distance x to facilitate alignment of a cover assembly to the sump. - In another embodiment illustrated in
FIG. 22 , theflange 27 of thefirst conduit 28 is capable of receiving a test plate 35 thereby facilitating the testing of a pumping and filtration system of which thesump assembly 24 is in fluid communication. - As depicted in
FIGS. 5-6 and 17, thesump assembly 24 may further include a hydrostaticrelief valve assembly 37 positioned at a lower portion of thesump 25. Therelief valve assembly 37 is spaced apart from the first andsecond conduits - During retrofit applications and referring to
FIG. 21 , the invention may also provide a mounting ring or flange 43 for mounting thesecond conduit 32 to an existing conduit or sump inlet. In one embodiment, the flange includes a female thread 44 tapped into the flange. The threads serve to fasten thesecond conduit 32. - In yet another embodiment, the invention provides a cover and
sump assembly 17 for a drain, wherein the cover andsump assembly 17 comprises a frame 11, at least oneplate 12 positioned on the frame 11, a sump for collecting water and configured to receive the frame 11, afirst conduit 28 passing through anopening 26 in the sump, and asecond conduit 32 defining anopening 34 along a lower portion thereof and in communication with thefirst conduit 28. - The frame 11 includes a
base 14, a crown 15, and sloped sides 16, wherein the frame 11 defines a plurality ofopenings 13. Theplate 12 defines a plurality ofopenings 21 and is positioned on the crown 15 of the frame 11. The plurality ofopenings 13 in the frame extend along the sloped sides 16 to the lower edge of the base 14 to promote suction of foreign object debris into thesump 25. The frame 11 andplate 12 form acover assembly 10. In one embodiment, the edges of the frame 11 extend beyond a perimeter defined by upper portions of thesump 25. - With reference to
FIGS. 4 and 17 , the sump and coverassembly 17 also includes at least oneremovable channel 23 extending across the crown 15 of the frame 11 and is removably secured to sides of the frame 11. Theplate 12 may be modular such that removable channel supports a plurality of plates. - The
sump 25 defines at least oneopening 26, and one of the openings receives the frame 11. Thesump 25 defines aflange 27 extending around its upper portion or upper edges (i.e., its perimeter). In one embodiment, the ratio of the diameter of the frame to the diameter of the sump is between about 0.86 and 1.0. - As illustrated in
FIG. 5 , thefirst conduit 28 has at least oneflange 29 for receiving the inlet pipe of the pumping and filtration system, and anotherflange 31 for receiving thesecond conduit 32. Thesecond flange 31 andsecond conduit 32 may be connected by any number of means. For example, thesecond flange 31 andsecond conduit 32 may be connected by screws, bolts, flanges, male and female adapter connection, a coupling, mounting rings, or similar connectors capable of securing thesecond flange 31 and thesecond conduit 32 to one another. Thefirst conduit 28 passes through one of theopenings 20 in thesump 25. - Advantageously, and referring to
FIG. 17 , thesecond conduit 32 defines at least oneopening 34 along a lower portion thereof. Theopening 34 in thesecond conduit 32 may be any number of shapes. For example, theopening 34 may extend lengthwise along the entire lower portion of thesecond conduit 32. Alternatively, theopening 34 may be defined by a plurality of holes, slits, or shaped openings. As discussed above, the opening facilitates the anti-entrapment features of the invention. Thesecond conduit 32 includes a first connector or flange 33 for connecting thesecond conduit 32 to thefirst conduit 28. The first andsecond conduits - In operation, the novel cover and
sump assembly 17 maximizes the flow of water passing through the assembly, reduces the velocity of water flowing through the assembly, uniformly distributes a suction force created by the water flow in the sump, and prevents the formation of a vortex of flowing water substantially adjacent to the cover andsump assembly 17. - For installations requiring retrofit, the invention provides a mounting flange or connector having a standard flange bolt pattern depending upon the size of the conduit. The mounting flange may include any number of threads, screws, bolts, or similar connectors capable of securing the flange to the conduit. The mounting flange includes holes for mounting hardware on the side of the existing sump.
Claims (19)
1. A cover assembly for a drain comprising:
a frame having a base, a crown, and sloped sides, said frame defining a plurality of openings; and
at least one plate defining a plurality of openings, said at least one plate positioned on said crown of said frame;
wherein said cover assembly maximizes the flow of water passing through said assembly, reduces the velocity of water flowing through said assembly, and prevents the formation of a vortex of flowing water substantially adjacent to said cover assembly.
2. The cover assembly of claim 1 wherein:
said frame is substantially rectangular in shape;
said plate is substantially rectangular in shape; and
said plurality of openings are substantially oblong.
3. The cover assembly of claim 1 wherein said plurality of openings in said frame extend along said sloped sides to the lower edge of said base to promote suction of foreign object debris into a sump assembly.
4. The cover assembly of claim 1 wherein said frame and plate each define at least one opening for receiving a fastener, said openings corresponding with one another.
5. The cover assembly of claim 1 further comprising at least one removable channel extending across said crown of said frame and removably secured to sides of said frame.
6. The cover assembly of claim 5 wherein:
said at least one plate is modular; and
said at least one removable channel supports a plurality of said at least one plates.
7. The cover assembly of claim 1 further comprising an anchor template for identifying a mounting position for said frame onto a sump and ensuring alignment of fasteners for securing the cover assembly to the sump.
8. The cover assembly of claim 7 wherein said anchor template is substantially rectangular and defines at least one opening for receiving a fastener, said opening offset from a midway point of each side by a desired distance to facilitate alignment of said cover assembly to a sump.
9. A sump assembly for a drain comprising:
a sump for collecting water, said sump defining at least one opening and having a flange at an upper portion;
a first conduit having at least one flange, said first conduit passing through one of said at least one openings in said sump; and
a second conduit having a first flange, said first and second conduits in communication with one another, said second conduit defining an opening along a lower portion of said second conduit;
wherein said second conduit receives a flow of water from said sump and advances the water flow to said first conduit; and
wherein said sump assembly reduces the velocity of water flowing through said sump, uniformly distributes a suction force created by the water flow in said sump and at another of said at least one openings of said sump, and prevents the formation of a vortex of flowing water substantially adjacent to said sump.
10. The sump assembly of claim 9 further comprising an anchor template for identifying a mounting position for a cover assembly on said sump and ensuring alignment of fasteners for securing the cover assembly to the sump.
11. The sump assembly of claim 10 wherein said anchor template is substantially rectangular and defines at least one opening for receiving a fastener, said opening offset from a midway point of each side by a desired distance to facilitate alignment of a cover assembly to said sump.
12. The sump assembly of claim 9 wherein said at least one flange of said first conduit is capable of receiving a test plate thereby facilitating the testing of a pumping and filtration system of which said sump assembly is in fluid communication.
13. The sump assembly of claim 9 further comprising a relief valve assembly positioned at a lower portion of said sump, said relief valve assembly spaced apart from said first and second conduits.
14. A cover and sump assembly for a drain comprising:
a frame having a base, a crown, and sloped sides, said frame defining a plurality of openings; and
at least one plate defining a plurality of openings, said at least one plate positioned on said crown of said frame, said frame and said at least one plate forming a cover assembly;
a sump for collecting water, said sump defining at least one opening, one of said at least one openings for receiving said frame, said sump having a flange at an upper portion thereof;
a first conduit having at least one flange, said first conduit passing through one of said at least one openings in said sump; and
a second conduit having a first flange, said first and second conduits in communication with one another, said second conduit defining an opening along a lower portion of said second conduit;
wherein said cover and sump assembly maximizes the flow of water passing through said assembly, reduces the velocity of water flowing through said assembly, uniformly distributes a suction force created by the water flow in said sump, and prevents the formation of a vortex of flowing water substantially adjacent to said cover and sump assembly.
15. The cover and sump assembly of claim 14 wherein said plurality of openings in said frame extend along said sloped sides to the lower edge of said base to promote suction of foreign object debris into said sump.
16. The sump and cover assembly of claim 14 further comprising at least one removable channel extending across said crown of said frame and removably secured to sides of said frame.
17. The sump and cover assembly of claim 16 wherein:
said at least one plate is modular; and
said at least one removable channel supports a plurality of said at least one plates.
18. The sump and cover assembly of claim 14 wherein edges of said frame extend beyond a perimeter defined by of upper portions of said sump.
19. The sump and cover assembly of claim 14 wherein the ratio of the diameter of said frame to the diameter of the sump is between about 0.86 and 1.0
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/534,362 US20100050335A1 (en) | 2008-08-26 | 2009-08-03 | Cover and Sump Assembly For Preventing Suction Entrapment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9199808P | 2008-08-26 | 2008-08-26 | |
US12/534,362 US20100050335A1 (en) | 2008-08-26 | 2009-08-03 | Cover and Sump Assembly For Preventing Suction Entrapment |
Publications (1)
Publication Number | Publication Date |
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US20100050335A1 true US20100050335A1 (en) | 2010-03-04 |
Family
ID=41723165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/534,362 Abandoned US20100050335A1 (en) | 2008-08-26 | 2009-08-03 | Cover and Sump Assembly For Preventing Suction Entrapment |
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US (1) | US20100050335A1 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100187169A1 (en) * | 2009-01-27 | 2010-07-29 | Brooks Hilton | Drain cover |
US8281427B2 (en) | 2010-10-25 | 2012-10-09 | Reza Afshar | Safety swimming pool drain apparatus that prevents the entrapment of a person |
USD702325S1 (en) * | 2013-02-28 | 2014-04-08 | Sweden Water Purification AB | Filter module for street inlet and parts thereof |
USD702328S1 (en) * | 2013-02-28 | 2014-04-08 | Sweden Water Purification AB | Filter module for street inlet and parts thereof |
USD702326S1 (en) * | 2013-02-28 | 2014-04-08 | Sweden Water Purification AB | Filter module for street inlet and parts thereof |
US20140366261A1 (en) * | 2008-06-02 | 2014-12-18 | Hydrotech Pty Ltd. | Safety grate cover for a swimming pool |
US9540836B2 (en) | 2009-11-11 | 2017-01-10 | Donald Cyrus Baker | Apparatus and method for evacuating contaminants and water vapor from an area above a swimming pool with integral deck drain |
EP3153643A1 (en) * | 2015-10-10 | 2017-04-12 | Bestway Inflatables & Material Corp. | Pool apparatus with water outlet |
USD803992S1 (en) | 2015-02-06 | 2017-11-28 | Roofguard Manufacturing, Llc | Cover for a drain |
US10072868B2 (en) | 2009-11-11 | 2018-09-11 | Donald Cyrus Baker | Apparatus for evacuating contaminants and water vapor from an area above a swimming pool |
US10676946B2 (en) | 2015-10-10 | 2020-06-09 | Bestway Inflatables & Material Corp | Pool apparatus |
US10697190B2 (en) | 2017-12-22 | 2020-06-30 | Paddock Pools Equipment Company, Inc. | Pool gutter with deck grate adapter |
US10711463B2 (en) | 2015-02-06 | 2020-07-14 | Roofguard Manufacturing, Llc | Roof drain cover |
US10774555B2 (en) | 2017-12-13 | 2020-09-15 | Paddock Pool Equipment Company, Inc. | Pool gutter and air evacuator assembly |
EP3036386B1 (en) | 2014-05-18 | 2020-10-21 | Siegfried Binder | Swimming pool having an integrated counter-current swimming system and process |
US11286670B2 (en) | 2015-02-06 | 2022-03-29 | Roofguard Manufacturing, Llc | Roof drain cover |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4170047A (en) * | 1978-06-30 | 1979-10-09 | Corsette Douglas Frank | Vaned anti-vortex pool drain cover |
US5753112A (en) * | 1991-11-20 | 1998-05-19 | Caretaker Systems, Inc. | Main drain leaf removal system for pools |
US5799339A (en) * | 1996-10-17 | 1998-09-01 | American Products | Safety cover for spa suction drain |
US6088842A (en) * | 1998-04-03 | 2000-07-18 | Barnett; Ralph L. | Drain assembly for preventing hair entanglement in a pool or hot tub |
US6253391B1 (en) * | 1999-09-06 | 2001-07-03 | Nichigi Engineering Co., Ltd. | Safety system at a discharge port in a pool |
US6393631B2 (en) * | 2000-05-16 | 2002-05-28 | Ronald Schroader | Drain safety cover system and method |
US6442774B2 (en) * | 2000-05-04 | 2002-09-03 | Certikin International Ltd. | Cover means |
US6817043B2 (en) * | 2002-11-15 | 2004-11-16 | Leif Alexander Zars | Safety swimming pool replacement drain cover apparatus and method |
US6971125B2 (en) * | 2002-08-02 | 2005-12-06 | Mattson Jr Roy W | Antimicrobial whirlpool bathtub |
US7178179B2 (en) * | 2004-07-23 | 2007-02-20 | Paramount Leisure Industries, Inc. | Anti-entrapment drain |
US20070180605A1 (en) * | 2005-09-13 | 2007-08-09 | Griffin Ronald H | Elongated suction outlet assembly with intrinsically safe sump |
US20080017562A1 (en) * | 2006-07-19 | 2008-01-24 | Zurn Industries, Inc. | Adjustable drain |
-
2009
- 2009-08-03 US US12/534,362 patent/US20100050335A1/en not_active Abandoned
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4170047A (en) * | 1978-06-30 | 1979-10-09 | Corsette Douglas Frank | Vaned anti-vortex pool drain cover |
US5753112A (en) * | 1991-11-20 | 1998-05-19 | Caretaker Systems, Inc. | Main drain leaf removal system for pools |
US5799339A (en) * | 1996-10-17 | 1998-09-01 | American Products | Safety cover for spa suction drain |
US6088842A (en) * | 1998-04-03 | 2000-07-18 | Barnett; Ralph L. | Drain assembly for preventing hair entanglement in a pool or hot tub |
US6253391B1 (en) * | 1999-09-06 | 2001-07-03 | Nichigi Engineering Co., Ltd. | Safety system at a discharge port in a pool |
US6442774B2 (en) * | 2000-05-04 | 2002-09-03 | Certikin International Ltd. | Cover means |
US6393631B2 (en) * | 2000-05-16 | 2002-05-28 | Ronald Schroader | Drain safety cover system and method |
US6971125B2 (en) * | 2002-08-02 | 2005-12-06 | Mattson Jr Roy W | Antimicrobial whirlpool bathtub |
US6817043B2 (en) * | 2002-11-15 | 2004-11-16 | Leif Alexander Zars | Safety swimming pool replacement drain cover apparatus and method |
US7178179B2 (en) * | 2004-07-23 | 2007-02-20 | Paramount Leisure Industries, Inc. | Anti-entrapment drain |
US20070180605A1 (en) * | 2005-09-13 | 2007-08-09 | Griffin Ronald H | Elongated suction outlet assembly with intrinsically safe sump |
US20080017562A1 (en) * | 2006-07-19 | 2008-01-24 | Zurn Industries, Inc. | Adjustable drain |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140366261A1 (en) * | 2008-06-02 | 2014-12-18 | Hydrotech Pty Ltd. | Safety grate cover for a swimming pool |
US9644383B2 (en) * | 2008-06-02 | 2017-05-09 | Hydrotech Pty Ltd. | Safety grate cover for a swimming pool |
US20100187169A1 (en) * | 2009-01-27 | 2010-07-29 | Brooks Hilton | Drain cover |
US7820041B2 (en) * | 2009-01-27 | 2010-10-26 | Waterways Plastics, Inc. | Drain cover |
US9540836B2 (en) | 2009-11-11 | 2017-01-10 | Donald Cyrus Baker | Apparatus and method for evacuating contaminants and water vapor from an area above a swimming pool with integral deck drain |
US10072868B2 (en) | 2009-11-11 | 2018-09-11 | Donald Cyrus Baker | Apparatus for evacuating contaminants and water vapor from an area above a swimming pool |
US8281427B2 (en) | 2010-10-25 | 2012-10-09 | Reza Afshar | Safety swimming pool drain apparatus that prevents the entrapment of a person |
USD702325S1 (en) * | 2013-02-28 | 2014-04-08 | Sweden Water Purification AB | Filter module for street inlet and parts thereof |
USD702328S1 (en) * | 2013-02-28 | 2014-04-08 | Sweden Water Purification AB | Filter module for street inlet and parts thereof |
USD702326S1 (en) * | 2013-02-28 | 2014-04-08 | Sweden Water Purification AB | Filter module for street inlet and parts thereof |
EP3036386B1 (en) | 2014-05-18 | 2020-10-21 | Siegfried Binder | Swimming pool having an integrated counter-current swimming system and process |
US9945125B2 (en) | 2015-02-06 | 2018-04-17 | Roofguard Manufacturing, Llc | Roof drain cover |
USD816812S1 (en) * | 2015-02-06 | 2018-05-01 | Roofguard Manufacturing, Llc | Cover for a drain |
USD803992S1 (en) | 2015-02-06 | 2017-11-28 | Roofguard Manufacturing, Llc | Cover for a drain |
USD832406S1 (en) | 2015-02-06 | 2018-10-30 | Roofguard Manufacturing, Llc | Cover for a drain |
US10519666B2 (en) | 2015-02-06 | 2019-12-31 | Roofguard Manufacturing, Llc | Roof drain cover |
US10711463B2 (en) | 2015-02-06 | 2020-07-14 | Roofguard Manufacturing, Llc | Roof drain cover |
US11286670B2 (en) | 2015-02-06 | 2022-03-29 | Roofguard Manufacturing, Llc | Roof drain cover |
US11643819B2 (en) | 2015-02-06 | 2023-05-09 | Roofguard Manufacturing, Llc | Roof drain cover |
US9896854B2 (en) | 2015-10-10 | 2018-02-20 | Bestway Inflatables & Material Corp. | Pool apparatus |
US10676946B2 (en) | 2015-10-10 | 2020-06-09 | Bestway Inflatables & Material Corp | Pool apparatus |
EP3153643A1 (en) * | 2015-10-10 | 2017-04-12 | Bestway Inflatables & Material Corp. | Pool apparatus with water outlet |
US10774555B2 (en) | 2017-12-13 | 2020-09-15 | Paddock Pool Equipment Company, Inc. | Pool gutter and air evacuator assembly |
US10697190B2 (en) | 2017-12-22 | 2020-06-30 | Paddock Pools Equipment Company, Inc. | Pool gutter with deck grate adapter |
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Legal Events
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Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |