Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8185990 | Swimming pool brush with hydrofoil A swimming pool brush includes a brush head having a pair of apertures formed in the brush head and a plurality of bristles secured in depending relation to the brush head in surrounding relation to each aperture. A first plurality of clips is formed in a top wall o... | 05/29/2012 |
| 8141191 | Pool cleaning vehicle having algorithm for moving Disclosed herein is using a combination of pump and drive motor activation and deactivation the vehicle can be turned and programmed to avoid vertical and other obstacles. ... | 03/27/2012 |
| 8117704 | Swimming pool cleaner The invention relates to a swimming pool cleaner with wheels driven by a turbine. The pool cleaner is intermittently turned from its path of travel along an underwater surface. A turning cam is provided inwardly of and adjacent to each of a pair of the side wheels. ... | 02/21/2012 |
| 8082617 | Automatic swimming pool cleaners Automatic swimming pool cleaners are detailed. The cleaners may employ filter bags with novel stiffeners to help retain their optimal debris-collection shapes in use. They additionally may include bags made of material having sanitizing properties or additives, allo... | 12/27/2011 |
| 8070942 | Suction device for cleaning a bottom surface of a structure of at least 15,000 m A suction device is disclosed for thoroughly cleaning the a bottom surface of a structure, covered with a non-porous plastic liner, that contains a body of water larger than 15,000 m3 for recreational use, with color, transparency and cleanness characteri... | 12/06/2011 |
| 8065771 | Pool cleaning brush This invention discloses a roller brush used in swimming pool cleaner, including the roller body and the roller brush wrapped around the roller body. The inner side of roller brush in contact with the roller body outer surface. The roller body has a number of detent... | 11/29/2011 |
| 8024833 | Swimming pool and deck brush A transversely elongated mounting bar curved rearwardly from a centerline and mounting longitudinally projecting bristles on the front side thereof to terminate in free ends deposed in a working plane. ... | 09/27/2011 |
| 8024832 | Aquarium cleaning device with debris collecting net An aquarium cleaning device structured for use with glass or plastic aquarium walls, enabling a dislodging and freeing of debris from the walls, while also simultaneously enabling a collecting of dislodged and freed debris for subsequent removal. The cleaning device... | 09/27/2011 |
| 8012345 | Pool cleaning vehicle having side vents and ducts Disclosed herein is an improved pool cleaning vehicle. The vehicle includes a housing, a bottom frame and a filter bag between the housing the bottom frame and attached to the bottom frame. The vehicle includes an intake system for causing water to enter the vehicle... | 09/06/2011 |
| 7987542 | Automatic swimming pool cleaners and bodies, feet, discs, and other components thereof Devices for cleaning vessels, especially swimming pools, are discussed. The devices may include repositionable in-line valves, with the valves typically moving laterally (from side to side) and changing the initial direction of the main fluid-flow path through the v... | 08/02/2011 |
| 7987543 | Working method and cleaning device to clean a swimming pool In a working method for a cleaning device (2) that moves back and forth in a swimming pool (1), control thereof is such that the cleaning device (2) moves from a starting position at a low speed in a forward direction V in a first pass in a firs... | 08/02/2011 |
| 7975340 | Automatic swimming pool cleaner discs and associated components Separate covers for protruding portions of discs of automatic swimming pool cleaners are addressed. The covers may be placed onto protrusions, such as fins, and removed from the fins as needed. Version of the covers are made of material more rigid and having lower c... | 07/12/2011 |
| 7975339 | Aquatic scrubber A device with a squeegee configuration configured to clean or treat surfaces submersed in liquid is described. The squeegee configuration is preferably contoured to wipe contoured surfaces or flexible such as to conform to a variety of contoured surfaces. The squeeg... | 07/12/2011 |
| 7945981 | Automatic pool cleaner with flexible scrubbing panel An automatic pool cleaner includes a housing having a bottom, an outer surface and an interior, at least two wheels connected to the housing and supporting the housing for rolling movement on a support surface with the bottom facing the support surface, a propulsion... | 05/24/2011 |
| 7908696 | Swimming pool cleaning device A swimming pool cleaning assembly that has at least one ultrasonic generator, a swimming pool cleaning machine including a support frame, a housing shell provided with a bottom wall and arranged around the support frame, a driver located in the housing shell, advanc... | 03/22/2011 |
| 7908697 | Motorised pool-cleaning device comprising cantilevered motor movement transmission means A motorised pool-cleaning device (1) includes: a suction element (30); a rotary element (4) for moving the device, which define first (2) and second (3) bearing axles; a support (18) consisting of (i) a first central part ( | 03/22/2011 |
| 7900308 | Water jet reversing propulsion and directional controls for automated swimming pool cleaners A self-propelled apparatus for cleaning the submerged bottom surfaces of a pool or tank in a predetermined regular pattern includes a reversible water jet drive means for propelling the apparatus in opposite directions corresponding to the longitudinal axis of the a... | 03/08/2011 |
| 7849547 | Directional control for dual brush robotic pool cleaners A self-propelled robotic pool cleaner (100) has a first pair of driven brushes (12, 14) and second pair of free brushes co-axially mounted for rotation on axles (16) at the opposite ends of the pool cleaner that are transverse to the direction o... | 12/14/2010 |
| 7827643 | Automated swimming pool cleaner with stationary projecting pivot member A self-propelled apparatus for cleaning the submerged bottom surfaces of a pool or tank in a predetermined regular pattern includes a reversible drive means for propelling the apparatus in opposite directions corresponding to the longitudinal axis of the apparatus. ... | 11/09/2010 |
| 7805792 | Pool cleaning robot The subject of the invention is a pool cleaning robot having a structure for suctioning debris from the bottom of the pool and a propulsion nozzle (5) adapted for directing a propulsive jet of water in a direction opposite to a direction (D1,D2)... | 10/05/2010 |
| 7805793 | Submersible vacuum cleaner Apparatus for facilitating the removal of material deposited at the bottom (6) of a volume of liquid (7) the apparatus including a suction pump assembly (2) associated with a suction head/nozzle (9) mounted to a user handling element (... | 10/05/2010 |
| 7797780 | Wheel arrangement for swimming pool cleaner A pool cleaner for cleaning a pool includes a housing with an upper surface and downwardly projecting sidewalls extending from the upper surface for defining a front, a rear, a first and a second side of the housing. A first pair of wheels includes a first wheel bei... | 09/21/2010 |
| 7752697 | Sealed box apparatus for pool cleaning machine The present invention relates to a sealed box apparatus for a pool cleaning machine wherein the sealed box is installed inside the body of the pool cleaning machine. The box contains and seals electronic devices for the cleaning machine. At least one waterproofed tu... | 07/13/2010 |
| 7725971 | Liquid container cleaner A cleaning device for cleaning sidewalls of a liquid container. The cleaning device includes a cover that can be removably disposed over a flotation device. The cover has a lower cleaning portion that cleans the sidewalls of the container upon contact with the sidew... | 06/01/2010 |
| 7721370 | Adjustable hose clip An adjustable hose clip is provided for use with a pool cleaner debris bag, including a first member having a retaining arm and a second member having a retaining arm. The hose clip also includes means for connecting the hose clip to a pool cleaner debris bag and re... | 05/25/2010 |
| 7690066 | Automatic pool cleaner An automatic pool cleaner is provided of the type for random travel over submerged floor and side wall surfaces of a swimming pool or the like to dislodge and collect debris. The pool cleaner includes an electric-powered traction drive system for rotatably driving c... | 04/06/2010 |
| 7636975 | Pool vacuum An improved pool vacuum includes a filter cone and poppet valve combination which enables quick drainage of water which has passed through and been cleaned by the cleaner's filter. A charging circuit is provided with isolation so that the pool vacuum can be used in ... | 12/29/2009 |
| 7621014 | Method for controlling twisting of pool cleaner power cable An apparatus and method is provided for removing undesired twists and loops in a power supply cable attached to a robotic swimming pool cleaner during the cleaner's pre-programmed movement over the bottom and/or side walls of the pool. An on-board electronic compass... | 11/24/2009 |
| 7540052 | Cleaning of a submerged surface A pressure type pool cleaner includes a head propelled forwardly over a surface. Water pumped to the head drives wheels turbine fashion; inducts debris into a cleaner system; and is ejected via a thrust nozzle onto a guide and thence along a thrust line to thrust th... | 06/02/2009 |
| 7520015 | Portable submersible cleaning device A portable submersible cleaning device includes a housing that has axillary opposed top and bottom apertures. The housing has a frusto-conical shape, and includes a handle and an access door removably attached thereto. A cleaning head is pivotally and removably atta... | 04/21/2009 |
| 7506393 | Plane magic a.k.a. pool plane A cambered hydrofoil for mounting to a pool pole that uses a mounting collar to transfer hydrodynamic force to the pole and thus increase scrubbing action of the brush attached to the end of said pole. The assembly consists of a left and right hydrofoil (15, 21 | 03/24/2009 |
| 7501056 | Positive pressure pool cleaner propulsion subsystem An automatic pool cleaner configured to be powered by a supplied positive pressure water flow including an improved propulsion subsystem for propelling the cleaner body through a swimming pool along a substantially random travel path. The subsystem includes a hydrau... | 03/10/2009 |
| 7475447 | Swimming pool bottom cleaning device A swimming pool bottom cleaning device includes a cleaning head (1) fitted with an alternately suctioning valve arrangement and provided with an elastic sliding base (2) being freely rotatable in its plane. The valve arrangement includes a freely movin... | 01/13/2009 |
| 7464429 | Automatic pool cleaner gear change mechanism A mechanism (106) for selecting one of a first gear (102) and a second gear (104) for driving an automatic swimming pool cleaner (10) includes a bi-stable oscillating gear change assembly (100). The assembly is moveable between a f... | 12/16/2008 |
| 7437790 | Pool cleaning vacuum employing multiple power supply sources and associated method A pool cleaning vacuum employing multiple power supply sources and associated method includes a body including first, second and third vertically juxtaposed chambers formed therein. The chambers share a wall with the second chamber wherein the third chamber is isola... | 10/21/2008 |
| 7434285 | Adjustable flow pulsating pool sweep An adjustable pulsating submersible (10) is taught consisting of, a lower pool sweep body (20) with a resilient skirt (22) attached underneath. An integrated valve (50) is positioned within the lower pool sweep body and is used to accompl... | 10/14/2008 |
| 7421754 | Hose lifter for an underwater pool cleaning device A buoyant hose lifter which selectively attaches to a portion of an existing hose of an underwater pool cleaning device, wherein the buoyancy of the hose lifter may be selectively varied by a user, thereby enabling the hose lifter and the underwater pool cleaning de... | 09/09/2008 |
| 7409740 | Pool mop An apparatus for assisting individuals in cleaning their pools. The apparatus comprises a cleaning head that is capable of being attached to a shaft or handle. The cleaning head comprises a base and a replaceable mop head that slides into the base. The replaceable m... | 08/12/2008 |
| 7401372 | Swimming pool cleaning apparatus A submersible cleaner includes a valve within a flow passage for interrupting fluid flow and thus drive the cleaned over submerged surfaces to be cleaned. An element moveable between the valve and a wall surface within the passage reduces a gap formed between them s... | 07/22/2008 |
| 7395571 | Cleaning of a submerged surface A pressure type pool cleaner includes a head propelled forwardly over a surface. Different portions of water pumped to the head inducts debris into a cleaner system, and is ejected via a thrust nozzle onto a deflector and thence along a thrust line to thrust the hea... | 07/08/2008 |
