US20080229490A1 - Safety grate cover for a swimming pool - Google Patents
Safety grate cover for a swimming pool Download PDFInfo
- Publication number
- US20080229490A1 US20080229490A1 US12/156,414 US15641408A US2008229490A1 US 20080229490 A1 US20080229490 A1 US 20080229490A1 US 15641408 A US15641408 A US 15641408A US 2008229490 A1 US2008229490 A1 US 2008229490A1
- Authority
- US
- United States
- Prior art keywords
- grate cover
- cover
- lower section
- grate
- sump
- 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
Links
Images
Classifications
-
- 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
- E04H4/1218—Devices for removal of polluted water; Circumferential gutters
- E04H4/1227—Circumferential gutters
-
- 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
- E04H4/1218—Devices for removal of polluted water; Circumferential gutters
Abstract
Description
- This application is a Continuation-In-Part of application Ser. No. 11/633,064, filed Dec. 4, 2006
- Most all swimming pools have a drainage sump located mostly in the deep end bottom for draining the pool when necessary and also for participating in the circulation of the pool water which is circulating through the filter system. Other pool systems are known as wading pools or Jacuzzis.
- The above mentioned pools have a sump in the lowest point of the pool and is of a pot-like configuration and has a grating installed over the opening of the sump to prevent any of the larger debris or children's toys from entering into the sump and to prevent any human limbs or larger areas of the human body to make contact with the considerable suction force in the bottom of the sump to avoid any injuries. The considerable suction in the bottom of the sump creates quite a forceful suction on the top of the grate that covers the sump. It has been known that many injuries have occurred to a human being suctioned onto the sump cover without being able to extricate him or herself without any help. Most of the sump covers known in the art have a flat surface thereon and the covers have many interstices therein to catch anything on the flat surface thereon while the water is suctioned into the sump. It has been found, in many instances, the force of the suction is of such intensity so that a human body can be trapped on top of the cover and the body of the person cannot be removed unless emergency procedures are undertaken.
- Steps have been taken alleviate a person from being sucked onto the cover. The above identified application has almost solved the problem by making the cover in a dome-shaped configuration. This way, no flat surfaces are presented to any part of the human body to thereby eliminate any chance of being sucked onto the surface of the grate cover.
- Other constructions have taken a different approach to this problem by having a sensor installed in the water suction line that would sense any increase in the force of the suction and after a short delay would cut off the suction. However, this approach has the disadvantage that by the time the increase in suction is being sensed, the person is already pulled down by the force of the suction and still could obtain a serious injury.
- As mentioned above, this invention is a Continuation-In-Part of a prior application. The prior application has a dome-shaped grate cover covering the sump. Since this dome-shaped grate cover is almost fool-proof with regard to any injuries, the present inventive concept is a further improvement over the prior grate cover. The present invention still has a dome-shaped cover but is divided into an upper section and a lower section. The upper section has four quadrants and each of the quadrants has square-shaped interstices and exhibits a concave curve at the transition to the lower section. The lower section also has four quadrants and each of the quadrants has a first concave curve extending in a direction toward the outside of the cover and furthermore has a second concave curve in a direction which is normal to the direction of the first concave curve. This arrangement assures that there is never a chance of any part of the human body being suctioned onto the grate cover because of the above curvatures there is always a lateral flow of suctioned water into the sump and under a person being in close contact with the cover.
-
FIG. 1 is a top view of the inventive grate cover; -
FIG. 2 is a cross sectional view of the grate cover taken along the line B-B ofFIG. 1 ; -
FIG. 3 is a cross sectional view of the grate cover taken along the line C-C ofFIG. 1 ; -
FIG. 4 is a detailed view of the transition between a first quadrant and a second quadrant as shown by circle D; -
FIG. 5 shows a fastening element at a middle line of the cover as shown by the circle A; -
FIG. 6 shows a fastening element at a corner of the cover as shown by the circle F; -
FIG. 7 is a perspective view of a sump in the bottom of the pool; -
FIG. 8 is a perspective view of the various interstices of the pool cover; -
FIG. 9 is across section through a wall of the interstices. -
FIG. 1 is a top view of the grate cover having a domed section. The basic cover is in a square configuration and seen from the center top there are four downwardly sloping quadrants 1 a, 1 b, 1 c and 1 d. There is a transitional area between the upper section and alower section 2. The transitional area is shown by the circle D andFIG. 4 . Thelower section 2 again is divided into fourquadrants FIG. 1 , the upper section 1 has a multiple of interstices of a square configuration and thesecond section 2 has oblong or rectangular interstices. The square interstices are held to a minimum of between 8.00 mm and 11.00 mm. This assures that not even a finger of a human hand can be sucked into the sump by way of a forceful suction. The top of the dome-shaped section 1 has aflat location 3 thereon to receive an ID tag which will indicate the exact specification of the grate cover. -
FIG. 2 is a cross sectional view of the grate cover. The view is taken along line B-B ofFIG. 1 . This view clearly shows the dome-shaped top section 1 as it tapers downwardly toward thelower section 2. At the transition between the upper section 1 and thelower section 2 there is slightconcave curve 4 which blends into thelower section 2. The lower section shows aconcave curve 5 as it curves downwardly toward the outside edge of the cover. -
FIG. 3 is another cross sectional of the grate cover. This view is taken along the line C-C ofFIG. 1 . This view shows a concave curve 5 a which is normal to theconcave curve 5 that curves downwardly toward theedge 17 of the grate cover. -
FIG. 4 is a top view of an area depicted inFIG. 1 by the circle D. This Fig. shows thesquare interstices 6 of the upper section 1 and the oblong or rectangular openings orinterstices 7 of thelower section 2. -
FIGS. 5 and 6 illustrate how the grate cover is fastened to the sump shown inFIG. 7 .FIG. 5 shows afastening element 10 of the grate coverlower section 2 that is located at about the middle line of the grate coverlower section 2 and has an opening 11 therein which is used to pass a fastener there through. InFIG. 6 there is shown acorner 8 of the grate cover having an opening 9 therein which is used to pass a fastener there through into a recess of the sump. -
FIG. 7 illustrates atypical sump 12 which is normally of a square configuration although other shapes such as circular or rectangular may also be used. However, the square shape has proven to be most beneficial. Thesump 12 has asuction outlet 13 in the bottom. Thesump 12 has arecess 14 around its upper periphery which is used to insert the grate cover therein to be flush with the bottom of the pool or Jacuzzi. -
FIGS. 8 and 9 show a detailed construction of the walls of the interstices or openings in the grate cover. The walls are shown at 15 and the upper surface of the walls have a reduced profile thereon to formribs 16. This reducedprofile 16 is instrumental in further minimizing the contact that can be had with the skin of a human when coning in contact with the grate cover. - It can now be seen that the pool grate cover is quite superior in performance when compared with the covers known in use including the co-pending application identified above. Experiments and tests have shown that the skin of a human cannot be attracted to the surface of the cover because the contact area is too small and the various curvatures on the top do not allow any areas of the body and the limbs to be attracted to the surface of the grate cover. The various concave curvatures of the top of the cover will always create lateral flows through the interstices and under any area of the human body. The suction force from inside of the sump cannot find enough contact areas to be effective to cause injuries.
- This inventive grate cover should be installed in condo polls, apartment complexes, olympic size pools or even pools used in a home environment. The home environment use includes wading pools and the use of a Jacuzzi.
Claims (7)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/156,414 US20080229490A1 (en) | 2006-12-04 | 2008-06-02 | Safety grate cover for a swimming pool |
US13/317,013 US8951413B2 (en) | 2008-06-02 | 2011-10-07 | Safety grate cover for a swimming pool |
US14/471,938 US9644383B2 (en) | 2008-06-02 | 2014-08-28 | Safety grate cover for a swimming pool |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/633,064 US7419588B2 (en) | 2006-12-04 | 2006-12-04 | Sump grate for a swimming pool |
US12/156,414 US20080229490A1 (en) | 2006-12-04 | 2008-06-02 | Safety grate cover for a swimming pool |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/633,064 Continuation-In-Part US7419588B2 (en) | 2006-12-04 | 2006-12-04 | Sump grate for a swimming pool |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/317,013 Continuation-In-Part US8951413B2 (en) | 2008-06-02 | 2011-10-07 | Safety grate cover for a swimming pool |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080229490A1 true US20080229490A1 (en) | 2008-09-25 |
Family
ID=39474482
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/633,064 Active 2027-02-09 US7419588B2 (en) | 2006-12-04 | 2006-12-04 | Sump grate for a swimming pool |
US12/156,414 Abandoned US20080229490A1 (en) | 2006-12-04 | 2008-06-02 | Safety grate cover for a swimming pool |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/633,064 Active 2027-02-09 US7419588B2 (en) | 2006-12-04 | 2006-12-04 | Sump grate for a swimming pool |
Country Status (1)
Country | Link |
---|---|
US (2) | US7419588B2 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7419588B2 (en) * | 2006-12-04 | 2008-09-02 | Lawson Robert B | Sump grate for a swimming pool |
US9644383B2 (en) | 2008-06-02 | 2017-05-09 | Hydrotech Pty Ltd. | Safety grate cover for a swimming pool |
US8951413B2 (en) * | 2008-06-02 | 2015-02-10 | Hydrotech Pty Ltd. | Safety grate cover for a swimming pool |
US7820041B2 (en) * | 2009-01-27 | 2010-10-26 | Waterways Plastics, Inc. | Drain cover |
US20100258206A1 (en) * | 2009-04-10 | 2010-10-14 | Baker Donald C | Sump extension assembly for preventing suction entrapment |
US8043498B2 (en) * | 2009-08-26 | 2011-10-25 | John Rueda | Storm drain protector |
US9243394B2 (en) | 2011-09-20 | 2016-01-26 | Fresh Products, Inc. | Replaceable restroom urinal assemblies, including urinal screens |
CN103866843B (en) * | 2012-12-12 | 2015-08-26 | 简佑家 | Movable filter cover for water outlet |
USD770025S1 (en) * | 2014-02-28 | 2016-10-25 | Blucher Metal A/S | Grating |
US20160102451A1 (en) * | 2014-10-14 | 2016-04-14 | Fresh Products, Inc. | Urinal screens |
USD778411S1 (en) | 2014-11-05 | 2017-02-07 | Fresh Products, Inc. | Urinal screen |
DE202015102279U1 (en) | 2014-11-05 | 2015-08-14 | Fresh Products, Inc. | urinal |
USD778412S1 (en) | 2014-11-10 | 2017-02-07 | Fresh Products, Inc. | Urinal screen |
MX2020006545A (en) | 2017-12-20 | 2020-09-14 | Fresh Prod Inc | Urinal screens. |
USD925009S1 (en) | 2018-10-25 | 2021-07-13 | Fresh Products, Inc. | Urinal screen |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3378858A (en) * | 1965-06-17 | 1968-04-23 | Jacuzzi Bros Inc | Drain assembly |
US4658449A (en) * | 1985-09-19 | 1987-04-21 | Martin Daniel R | Proctective adapter for pool drain |
US5130016A (en) * | 1991-01-28 | 1992-07-14 | Gavin Norman W | Drain grate |
US6170095B1 (en) * | 1997-06-16 | 2001-01-09 | Leif Alexander Zars | Main drain safety grate apparatus |
US6397408B1 (en) * | 1999-07-29 | 2002-06-04 | Polaris Pool Systems, Inc. | Ramped cap unit for a main pool drain cover plate |
US6442774B2 (en) * | 2000-05-04 | 2002-09-03 | Certikin International Ltd. | Cover means |
US6453482B1 (en) * | 2000-08-17 | 2002-09-24 | Paul M. Mullings | Safety drain guard for swimming pools and spas |
US6751814B2 (en) * | 2001-11-02 | 2004-06-22 | Roy Mattson | Whirlpool bath filter and suction device |
US7144185B2 (en) * | 2003-02-17 | 2006-12-05 | Aco Severin Ahlmann Gmbh & Co. Kg | Street grid for surface drainage |
US7178179B2 (en) * | 2004-07-23 | 2007-02-20 | Paramount Leisure Industries, Inc. | Anti-entrapment drain |
US7419588B2 (en) * | 2006-12-04 | 2008-09-02 | Lawson Robert B | Sump grate for a swimming pool |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2701027A (en) * | 1952-10-13 | 1955-02-01 | Thomas N Scoville | Floor drain master |
US3674149A (en) * | 1970-12-08 | 1972-07-04 | Alton E Donalson | Plumbing grate fixture |
US4345998A (en) * | 1979-07-05 | 1982-08-24 | Graffis Kelly R | Plastic catch basin |
US5529431A (en) * | 1995-02-24 | 1996-06-25 | Alfred T. Francis | Temporary manhole cover and method |
-
2006
- 2006-12-04 US US11/633,064 patent/US7419588B2/en active Active
-
2008
- 2008-06-02 US US12/156,414 patent/US20080229490A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3378858A (en) * | 1965-06-17 | 1968-04-23 | Jacuzzi Bros Inc | Drain assembly |
US4658449A (en) * | 1985-09-19 | 1987-04-21 | Martin Daniel R | Proctective adapter for pool drain |
US5130016A (en) * | 1991-01-28 | 1992-07-14 | Gavin Norman W | Drain grate |
US6170095B1 (en) * | 1997-06-16 | 2001-01-09 | Leif Alexander Zars | Main drain safety grate apparatus |
US6397408B1 (en) * | 1999-07-29 | 2002-06-04 | Polaris Pool Systems, Inc. | Ramped cap unit for a main pool drain cover plate |
US6442774B2 (en) * | 2000-05-04 | 2002-09-03 | Certikin International Ltd. | Cover means |
US6453482B1 (en) * | 2000-08-17 | 2002-09-24 | Paul M. Mullings | Safety drain guard for swimming pools and spas |
US6751814B2 (en) * | 2001-11-02 | 2004-06-22 | Roy Mattson | Whirlpool bath filter and suction device |
US7144185B2 (en) * | 2003-02-17 | 2006-12-05 | Aco Severin Ahlmann Gmbh & Co. Kg | Street grid for surface drainage |
US7178179B2 (en) * | 2004-07-23 | 2007-02-20 | Paramount Leisure Industries, Inc. | Anti-entrapment drain |
US7419588B2 (en) * | 2006-12-04 | 2008-09-02 | Lawson Robert B | Sump grate for a swimming pool |
Also Published As
Publication number | Publication date |
---|---|
US7419588B2 (en) | 2008-09-02 |
US20080128342A1 (en) | 2008-06-05 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: NEPTUNE-BENSON, LLC, RHODE ISLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LAWSON AQUATICS, INC.;LAWSON, ROBERT;REEL/FRAME:027461/0685 Effective date: 20111230 |
|
AS | Assignment |
Owner name: MARANON CAPITAL, L.P., AS AGENT (MEZZANINE INVESTM Free format text: SECURITY AGREEMENT;ASSIGNOR:NEPTUNE-BENSON, LLC;REEL/FRAME:027486/0177 Effective date: 20111230 Owner name: MARANON CAPITAL, L.P., AS AGENT (CREDIT AGREEMENT) Free format text: SECURITY AGREEMENT;ASSIGNOR:NEPTUNE-BENSON, LLC;REEL/FRAME:027486/0116 Effective date: 20111230 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
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AS | Assignment |
Owner name: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT, CO Free format text: SECURITY AGREEMENT;ASSIGNOR:NEPTUNE-BENSON, LLC;REEL/FRAME:028942/0292 Effective date: 20120912 |
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Owner name: NEPTUNE-BENSON, LLC, RHODE ISLAND Free format text: RELEASE OF PATENT SECURITY AGREEMENT;ASSIGNOR:MARANON CAPITAL, L.P., AS AGENT;REEL/FRAME:028951/0096 Effective date: 20120912 |
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Owner name: HYDROTECH PTY LTD., AUSTRALIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NEPTUNE-BENSON, LLC;REEL/FRAME:033493/0631 Effective date: 20140519 |
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Owner name: HYDROTECH PTY LTD., AUSTRALIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NEPTUNE-BENSON, LLC;REEL/FRAME:033586/0094 Effective date: 20140519 |
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Owner name: HYDROTECH PTY LTD., AUSTRALIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SNELLING, PETER;REEL/FRAME:033888/0007 Effective date: 20141003 |
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Owner name: ANTARES CAPITAL LP, AS SUCCESSOR AGENT, ILLINOIS Free format text: ASSIGNMENT OF INTELLECTUAL PROPERTY SECURITY AGREEMENT;ASSIGNOR:GENERAL ELECTRIC CAPITAL CORPORATION, AS RETIRING AGENT;REEL/FRAME:036817/0857 Effective date: 20150821 |
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Owner name: NEPTUNE-BENSON, LLC, PENNSYLVANIA Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL;ASSIGNOR:ANTARES CAPITAL LP;REEL/FRAME:038464/0638 Effective date: 20160415 |