Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7334743 | Fog generating system and method of installing same A fog generating system (20) includes a fluid feed conduit (22) and extension tube assemblies (26) spaced along the conduit (22). The assemblies (26) include nozzle fittings (40) coupled to extension tubes (32). Misti... | 02/26/2008 |
| 7326458 | System and method for flexible insulation An insulator is provided having a folded, stacked substrate with a plurality of insulating cells. The substrate is folded such that cells on one folded portion are interleaved with cells on another portion. ... | 02/05/2008 |
| 7093593 | Floating solar pool heater A soft, flexible, solar pool heater for floating on water generally comprises independently inflatable outer ring and central portion. When chamber and cavity are inflated, the cavity is with the top and bottom planes of the ring. The ring can be inflated with water... | 08/22/2006 |
| 6571789 | High efficiency swimming pool or commercial liquid tank insulation device Presented is an improved insulation device which, in multiple numbers, forms a swimming pool cover, or cover for other types of liquid containers. A complete cover is formed of multiple independent floatation insulation devices that collectively cover the... | 06/03/2003 |
| 6503241 | Pool heating apparatus A method and apparatus for heating an outdoor swimming pool. The apparatus includes a substantially buoyant web having a first end, a second end, a first exterior surface and a second exterior surface. A water distributor is attached to the first end of t... | 01/07/2003 |
| 5860413 | Pool cover The pool cover is made of multi-layer light weight construction having a transparent top layer to permit sunlight to pass through and an opaque bottom layer for absorbing sunlight passing through the transparent layer. In addition, a plurality of pockets ... | 01/19/1999 |
| 5555877 | Cover for pond used to collect solar radiation A cover for withstanding stormy weather and increasing solar heating of a body of water is disposed over the surface of the water. The cover is more transparent to visible radiation from the sun than to infrared radiation, and is anchored and sealed aroun... | 09/17/1996 |
| 5511536 | Solar-type pool cover The pool cover is made of multi-layer light weight construction having transparent top layers to permit sunlight to pass through, an opaque layer for absorbing sunlight passing through the transparent layers and a reflective layer to transfer heat from th... | 04/30/1996 |
| 5216762 | Floating pool cover apparatus A floating pool cover arranged for flotation about the top surface of a swimming pool to provide for passive heating during periods of depressed temperatures and reflection of heat during periods of elevated temperatures is provided as a housing formed wi... | 06/08/1993 |
| 4709688 | Open cell sheeting A two-ply sheeting material is provided with open ended dimples formed in the lower layer that will trap air and ensure flotation when the sheeting is deployed on a swimming pool as a pool cover. The upper sheet is bonded to the tops of the dimples to for... | 12/01/1987 |
| 4601072 | Swimming pool cover A thermally insulative buoyant swimming pool cover floats on the surface of the pool for covering the pool and for retaining the heat within the pool. Sinking means, such as weights or a mechanical pull-down structure, may be secured to the pool cover alo... | 07/22/1986 |
| 4426995 | Solar quilt A flexible quilt collects and absorbs solar energy, and transfers heat to the underlying ground, water or other medium. It includes insulating gastight compartments which are located between an upper film and a lower film. The upper film has a high transm... | 01/24/1984 |
| 4313421 | Solar heating apparatus for swimming pools A cover for a swimming pool is disclosed comprising first and second layers of plastics material joined together at join zones, to define a plurality of spaces therebetween the spaces being inflated or inflatable, whereby the cover floats when placed on t... | 02/02/1982 |
| 4270232 | Thermal pool cover This invention is a unique cover for swimming pools or the like manufactured in easily handleable small segments which fit together on matching sides when floated upon water and as particularly characterized by utilizing a heat retaining material on the s... | 06/02/1981 |
| 4195622 | Swimming pool cover and solar heater A swimming pool cover having at least a portion of which is made of material allowing solar energy to pass therethrough coacts with a solar heating mat in the pool to retain heat developed by the mat. The dark-colored mat has a specific gravity sufficient... | 04/01/1980 |
| 4103368 | Pool cover having solar energy heating feature A pool cover having solar energy heating capability is provided comprising sheet material adapted to furl about a reelless locus in a storage position and to be deployed in an extended position. The cover includes means continuously resiliently urging the... | 08/01/1978 |
| 4079726 | System for storage and use of solar energy A system for economically storing solar energy in the form of heated water. The system includes an above ground swimming pool in conjunction with a solar collector whereby the water of the pool is heated and stored therein until needed for use. In one for... | 03/21/1978 |
| 4022187 | Floating solar heater for swimming pools A solar heating apparatus is disclosed herein useful as a swimming pool cover whereby the sun's rays can penetrate the apparatus and heat the water therebeneath. The apparatus includes a plurality of individual and separate units of a predetermined geomet... | 05/10/1977 |
