| Patents for E04H 4 - Swimming or splash baths or pools (9,370) |
|---|
| 08/03/1989 | DE3802674A1 Energy-saving swimming-pool covering |
| 08/01/1989 | US4852211 Automatic pool cleaner |
| 07/25/1989 | US4851275 Covering used to protect water conditions of nursery pool from damage by acid rain and extraordinary temperatures |
| 07/18/1989 | US4849024 Pool cleaner |
| 07/18/1989 | US4848515 Portable swimming pool step device |
| 07/18/1989 | US4847926 Swimming pool liner retaining bracket |
| 07/18/1989 | US4847925 Cover for a pool, hot tub or the like |
| 07/12/1989 | EP0323883A1 Pool cleaner |
| 07/11/1989 | US4846972 Skim net assembly for cleaning swimming pools and the like |
| 07/11/1989 | US4845787 High flow, low turbulence swim-in-place pool operation method |
| 07/11/1989 | CA1257058A1 Accessory for an automatic swimming pool cleaner |
| 07/04/1989 | US4843658 Swimming pool and method of construction |
| 06/27/1989 | CA1256262A1 Pool cleaner |
| 06/13/1989 | US4839064 Siphon usable below grade; efficient |
| 06/13/1989 | US4839063 Cleaning of a body of liquid |
| 06/13/1989 | US4837886 Pool cleaning device |
| 06/13/1989 | US4837869 Chair for use in swimming pools |
| 06/07/1989 | EP0319342A2 A device for displacing a submerged article |
| 06/06/1989 | US4836920 Recoil web pool skimmer |
| 06/06/1989 | US4836239 Water cooling tower and water level control system therefor |
| 06/06/1989 | US4835810 Wheeled pool vacuum head with vacuum enhancing seal |
| 06/06/1989 | US4835809 Apparatus for automatic cleaning particularly of the bottom of a swimming pool |
| 05/30/1989 | US4834138 Pool cover syphon for above ground pools |
| 05/30/1989 | CA1254881A1 Interdome enclosure system for a humid environment |
| 05/23/1989 | US4832838 Method and apparatus for water calculation and filtration |
| 05/23/1989 | US4831672 Floor-level adjusting device for a pool |
| 05/16/1989 | US4830040 Automatic swimming pool cover drainer |
| 05/16/1989 | US4829732 Anchor socket jig assembly |
| 05/16/1989 | CA1254105A1 Swimming pool cleaner |
| 05/16/1989 | CA1254045A1 Aquatic turbulence suppression device |
| 05/11/1989 | DE3744355C1 Process and apparatus for treating water in swimming pools |
| 05/09/1989 | US4828626 Cleaning system for swimming pools and the like |
| 05/03/1989 | EP0314259A2 Automatic cleaning apparatus for an under-water surface |
| 05/02/1989 | US4826591 Pool skimmer |
| 05/02/1989 | US4825605 Closure device for wall opening |
| 05/02/1989 | US4825479 Inflatable swimming pool cover |
| 04/27/1989 | DE3812438C1 Drainage system for water-storage means, in particular swimming pools |
| 04/26/1989 | EP0313272A2 A method of inhibiting the growth of microorganisms in aqueous liquids |
| 04/26/1989 | EP0313242A2 Tank for swimming against an artificial current |
| 04/25/1989 | US4823837 Restricting fluid flow |
| 04/25/1989 | CA1253186A1 Protective system for hot tub water and power supply |
| 04/20/1989 | DE3733187A1 Automatic rainproof roof |
| 04/18/1989 | US4822487 Pool skimmer |
| 04/18/1989 | US4821479 Finishing tile |
| 04/11/1989 | US4820411 Swimming pool skimmer |
| 04/11/1989 | US4819681 Apparatus and method for draining a swimming pool cover |
| 04/11/1989 | US4819293 Adapter and pole assembly |
| 04/04/1989 | US4818389 Skimmer with flow enhancer |
| 04/04/1989 | US4818142 Method and apparatus for constructing a walled pool excavation |
| 04/04/1989 | US4817935 Play enclosure for artwork, paperwork, sand and water play use |
| 04/04/1989 | US4817225 Swimming pool cleaning device |
| 04/04/1989 | US4817217 For maintaining water levels |
| 04/04/1989 | CA1252178A1 Swimming pool control system |
| 03/28/1989 | US4815888 Swimming pool drain |
| 03/28/1989 | US4815442 Solar collector |
| 03/28/1989 | US4815152 Pool cover movement limiting device |
| 03/15/1989 | EP0306814A1 Swimming pool water treatment process |
| 03/14/1989 | US4812077 Pneumatic/hydraulic wave generator |
| 03/14/1989 | US4811433 Pool cover extending and retracting device |
| 03/14/1989 | CA1251158A1 Supports for hoists |
| 03/14/1989 | CA1251004A1 Spa or pool cleaning device |
| 03/07/1989 | US4810129 Arrangement for generating waves in a body of water |
| 02/28/1989 | US4808081 Hose air purging, pump anti-depriming method and apparatus |
| 02/28/1989 | US4807318 Pool cleaner |
| 02/28/1989 | US4807309 Converting a swimming pool into a skating rink |
| 02/23/1989 | WO1989001556A1 Swimming pool filter |
| 02/23/1989 | DE3739465C1 Device for driving a swimming-pool covering |
| 02/21/1989 | US4806048 Apparatus for producing artificial wave |
| 02/21/1989 | US4805736 Disappearing ladder |
| 02/07/1989 | US4802592 Floating liquid skimmers having a floating weir |
| 02/01/1989 | EP0301132A1 Suction apparatus for liquids |
| 01/31/1989 | US4801378 Compact unit for servicing swimming pools |
| 01/31/1989 | US4801376 Cleaner for swimming pools and the like |
| 01/24/1989 | US4799665 Sandbox and swimming pool playset |
| 01/17/1989 | US4798670 Skimmer vacuum filter apparatus |
| 01/17/1989 | US4797957 Swimming pool with improved wall strengthening means |
| 01/10/1989 | US4797206 Siphon device for cleaning spas |
| 12/28/1988 | EP0297080A1 Anti-overflow ledge for swimming pools |
| 12/28/1988 | CA1247382A Wave generating apparatus |
| 12/13/1988 | US4790344 Fluid flow regulator |
| 12/13/1988 | US4790037 Swimming pool cover assembly |
| 12/07/1988 | EP0293831A1 Wave making apparatus |
| 12/06/1988 | US4789470 Floating arm with one portion to enhance inward flow on upstream side; another for downstream side |
| 12/06/1988 | US4789364 Displacement apparatus for submerged cleaner |
| 11/30/1988 | EP0292605A2 Wave pool |
| 11/22/1988 | US4786334 Self-propelled cleaner |
| 11/15/1988 | US4784171 Pool sweep modifications |
| 11/15/1988 | US4783868 Vane for underliquid cleaning device |
| 11/15/1988 | US4783860 Wet back device for generating wave motion in a water tank |
| 11/08/1988 | US4782538 Reservoirs |
| 11/03/1988 | DE3726871A1 Hollow structural element |
| 11/01/1988 | US4781827 Portable swimming pool skimmer |
| 11/01/1988 | US4781000 Structural support brace |
| 11/01/1988 | US4780992 Apparatus for cleaning pool tile |
| 11/01/1988 | CA1243808A1 Swimming pool cleaner component |
| 10/26/1988 | EP0287714A1 A pneumatic wave producer which can be installed in or at a distance of the liquid medium |
| 10/25/1988 | CA1243454A1 Inflatable reservoir for containing a liquid, more especially an inflatable swimming pool, and a method for filling same |
| 10/19/1988 | EP0287457A1 Arrangement for the mechanical actuation of an assembly adapted to manual actuation |
| 10/18/1988 | US4778599 Automatic, moving swimming pool cleaner |
| 10/13/1988 | DE3726414A1 Covering means which can be rolled up and is intended for containers, in particular for swimming pools, and process for the production thereof |