Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8056156 | Vacuum relief unit and method for a pool A vacuum relief unit and method for venting air into a pool pumping system when a pressure level within the system drops below a first pressure level limit. The unit includes a closed air chamber, a device for venting chamber air from the air chamber into the pool p... | 11/15/2011 |
| 8001626 | Swimming pool safety net system A swimming pool safety net system includes a net having a first edge affixable to a side of a swimming pool and a second edge extendable toward a center of the swimming pool. A plurality of actuators are substantially regularly spacing around a periphery of a swimmi... | 08/23/2011 |
| 7992233 | Hydraulic suction fuse A swimming pool hydraulic suction fuse system. Implementations may include a fuse housing having a pump outlet, a drain inlet, and an air source. The hydraulic suction fuse system may also include a fuse assembly coupled into the fuse housing, the fuse assembly havi... | 08/09/2011 |
| 7934273 | Method for relieving suction force in a pool drain Methods of relieving the suction force in a swimming pool or spa. A first method may include the steps of closing an aperture in a hydraulic suction fuse through magnetic force and opening the aperture by increasing suction force within the hydraulic suction fuse. I... | 05/03/2011 |
| 7784117 | Electromechanical safety valve system for swimming pool and spa pumps A vacuum relief safety valve includes a housing defining an inner chamber and attached to the suction-side of the swimming pool or spa pump. An air inlet aperture is formed in the housing so as to be open to ambient air. A sealing element is disposed within the hous... | 08/31/2010 |
| 7614094 | Machine and method for proactive sensing and intervention to preclude swimmer entrapment, entanglement or evisceration A machine and method for anticipatory sensing and intervention to avoid swimmer entrapment, entanglement or evisceration; with a proactive, pre-entrapment, ultrasonic sensor assessing the relative hazard of swimmer proximity to a drain cover. A transducer launches w... | 11/10/2009 |
| 7419588 | Sump grate for a swimming pool A grate cover in combination with a swimming sump being installed in a recess in the top of the sump. The grate cover having a multiple of interstices or openings there through. The size of the interstices being held to a minimum so that fingers of a human cannot be... | 09/02/2008 |
| 7389573 | Method of retrofit installation of a portable swimming pool barrier fence The installation and removal of a portable but sturdy pool barrier fence uses the hardware installed for attaching a safety pool cover during the pool use season. Multiple rectangular panel frames support a mesh fabric. Each panel has a lower horizontal frame member... | 06/24/2008 |
| 7346938 | Retrofit suction sanitation safety cover A safety cover having a filter and an optional chemical dispenser, that covers and existing faceplate on a water vessel having a closed loop piping system and water pump. When the cover and filter cover an existing faceplate the cover and filter increases the vacuum... | 03/25/2008 |
| 7300576 | Pool cleaning system and safety skimmer A swimming pool cleaning system includes a pump, a first tube coupling a suction port of the pump in fluid communication with a main drain or mobile cleaning device which draws water and settled debris from the bottom of the pool, and a skimming device including an ... | 11/27/2007 |
| 7244216 | Method and system for preventing pole vault fall injuries A method for preventing serious injuries to a person participating in a physical activity, such as pole-vaulting, which occurs at least partially over a hard surface. The method includes: detecting predetermined criteria indicative of a condition which requires depl... | 07/17/2007 |
| 7218235 | Motion responsive swimming pool safety device A motion responsive swimming pool safety device that has a control panel. A perimeter laser electrically is connected to the control panel. The perimeter laser is located peripheral to the swimming pool and generates a perimeter laser beam. A perimeter sensor is ele... | 05/15/2007 |
| 7213275 | Float operated hydraulic suction fuse for swimming pools A hydraulic suction fuse is mounted in a conventional debris collection trap of a swimming pool, spa or the like, to significantly reduce or eliminate any suction force on the bottom or side wall mounted drain of the swimming pool, spa or the like, as a result of th... | 05/08/2007 |
| 7193167 | Competitive swimming starting system A competitive swimming starting system for producing faster starts of competitive swimmers after the start of the race has been signaled. The competitive swimming starting system may include a platform structure for resting on a surface adjacent to a pool, and a lig... | 03/20/2007 |
| 7188688 | Down-hole tool filter and method for protecting such tools from fluid entrained debris An improved apparatus for filtering down-hole drilling fluids, insertable at any point in the drill string, i.e.: tool joints or within instrument subs. The filter element is a disk insertable between the two threadably connected ends of any two lengths of the drill... | 03/13/2007 |
| 7178179 | Anti-entrapment drain A drain for swimming pools, spas, whirlpool baths, etc., includes a plurality of first orifices in communication with corresponding serpentine passageways to minimize hair or a body part from covering and entering the first orifices to a degree sufficient to entrap ... | 02/20/2007 |
| 7160166 | Underwater flotation safety device An underwater flotation safety device includes a base that may be positioned below the water surface of a swimming pool with ballast, a hook, or the like. A buoyant member is releasably coupled to the base and is also positioned below the water surface. A release me... | 01/09/2007 |
| 7131789 | Object retrieval system An object retrieval system providing an expanse of flexible material variably configured by travel of a material support element between a first position and a second position which generates movement in objects that collect on the material surface for retrieval. | 11/07/2006 |
| 7132954 | Self monitoring pool cover system System and method for monitoring a working status of a swimming pool cover assembly. The system comprises a pool cover assembly operably connected to an alarm apparatus; both may be operably connected to a plurality of sensors capable of detecting a working status o... | 11/07/2006 |
| 7126408 | Method and apparatus for receiving high-speed signals with low latency An apparatus and method for receiving high-speed signals having a wide common-mode range with low input-to-output latency. In one embodiment, the receiver includes an integrator to accumulate charge in accordance with an input signal during an integration time inter... | 10/24/2006 |
| 7114200 | Pool and bathtub cushion The pool and bathtub cushion is a padded mat for protecting against injuries that are often sustained against pool or bathtub edges. A first end of the pool cushion is secured outside of the pool through the use of fasteners or weights and the second end is secured ... | 10/03/2006 |
| 7114297 | Radius corner plate for a pool A modular rounded corner piece for forming rounded corners of a pool. The modular rounded corner piece may include a plate portion and a liner receptor portion. The liner receptor portion may include a channel formed by a top wall and a bottom wall. The channel may ... | 10/03/2006 |
| 7089607 | Pool drain assembly with annular inlet The swimming pool floor or spa floor drain assembly of the present invention includes a drain body having a mouth positionable in proximity to the pool wall to serve as a fluid flow inlet, a spaced apart fluid flow outlet positionable below the mouth and a sidewall ... | 08/15/2006 |
| 7089606 | Manually resettable hydraulic suction fuse for swimming pools A hydraulic suction fuse is mounted in a conventional debris collection trap of a swimming pool, spa or the like, to significantly reduce or eliminate any suction force on the bottom or side wall mounted drain of the swimming pool, spa or the like, as a result of th... | 08/15/2006 |
| 7063582 | Reversible life raft comprising removable shelters A dual-sided, or reversible, inflatable rescue and safety raft consists of an inflated grille provided with mesh netting spanning open regions to accommodate personnel, manually releasable locking devices that close access openings in the netting to permit personnel... | 06/20/2006 |
| 7055189 | Hydraulic suction fuse for swimming pools A hydraulic suction fuse is mounted in a conventional debris collection trap of a swimming pool, spa or the like, to significantly reduce or eliminate any suction force on the bottom or side wall mounted drain of the swimming pool, spa or the like, as a result of th... | 06/06/2006 |
| 6996860 | Construction protective covering A construction protective covering for covering and protecting delicate finishes on previously installed bathroom components on a construction job site from damage due to dropped tools and construction workers working in the vicinity of the installed component inclu... | 02/14/2006 |
| 6988282 | Drain cover A drain cover for a swimming pool, spa or tub drain that includes a hollow tube or shell having a slot formed in a wall therein and a fitting connecting the drain cover with respect to the drain. ... | 01/24/2006 |
| 6948287 | Gap seal on a building structure The invention concerns a permanently functional gap seal on structures, in particular building structures, which ensures a reliable seal against penetrating moisture, this being achieved in that the cover layer has a profile which can be adapted to an installation s... | 09/27/2005 |
| 6920652 | Top for starting platform for swimming pool A top for a starting platform at one end of a swimming pool has an upper surface, which is adapted to support both feet of a swimmer in a starting position, and a lower surface, at which the top is mountable so that the upper surface slants downwardly and frontwardl... | 07/26/2005 |
| 6920653 | Disinfectant delivery chamber for use in whirlpool bath An inventive suction cover for a whirlpool bath includes a rearwardly extending disinfectant chamber. The disinfectant chamber is filled with a supply of a disinfectant. As the whirlpool is operated, water is drawn into the disinfectant chamber and mixes with the di... | 07/26/2005 |
| 6895608 | Hydraulic suction fuse for swimming pools A hydraulic suction fuse is mounted in a conventional debris collection trap of a swimming pool, spa or the like, to significantly reduce or eliminate any suction force on the bottom or side wall mounted drain of the swimming pool, spa or the like, as a result of th... | 05/24/2005 |
| 6865755 | Interlocked drain cover Missing drain covers used in connection with swimming pools, spas and/or other applications expose humans and animals to discharge ports in the drains that can develop near vacuums which eviscerate, entrap the body and entangle hair. A drain cover is disclosed that ... | 03/15/2005 |
| 6817043 | Safety swimming pool replacement drain cover apparatus and method A replacement drain cover apparatus for a swimming pool drain to protect a swimmer from entrapment of the swimmer's body or hair and having a drain sump adapter ring for securing means into a pool drain sump and an installation plate for releasably securing onto the... | 11/16/2004 |
| 6779205 | Vacuum surge suppressor for pool safety valve A vacuum surge suppressor for swimming pool safety valves. These valves normally sense and then instantly relieve excessively high vacuum levels in the pool's drain line. Such high vacuum levels occur when an individual becomes trapped by the suction at the pool's d... | 08/24/2004 |
| 6751814 | Whirlpool bath filter and suction device A whirlpool bath has a combination suction fixture and disposable filter. The suction fixture is a plastic semi-cylindrical housing attachable to the tub. A removable faceplate is reinforced and resistant to body and hair entrapment. The disposable filter is fibrous... | 06/22/2004 |
| 6738994 | Drain cover A drain cover for a swimming pool, spa or tub drain that includes a hollow tube or shell having a slot formed in a wall therein and a fitting connecting the drain cover with respect to the drain. ... | 05/25/2004 |
| 6691334 | Swimming pool covering structure A swimming pool covering structure including a flexible covering section for extending across the top surface of water contained within the pool and a flexible anchoring section for extending peripherally and outwardly from the covering section. The cover... | 02/17/2004 |
| 6687923 | Vacuum release valve and method A vacuum release valve and method are defined. The valve 10, 100, 200 is positioned on a line L between a pool suction inlet I and a pump PU for pumping pool liquid from the inlet and along the line L. The valve 10, 100, 200 includes a valve member 24, 10... | 02/10/2004 |
| 6676831 | Modular integrated multifunction pool safety controller (MIMPSC) Modular Pool Safety Controller used with swimming pool or spa. The controller stands alone, or integrated with a prior art controller. Emphasis is on safety of swimmers and pool equipment, providing low entry cost. Other modular features can be added. Saf... | 01/13/2004 |
