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Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 6795984 | Spa cover lifting device A spa cover lifting device employs a pivot bar attached to a piston and transverse bar. The pivot bar and piston are anchored adjacent to a spa, and the transverse bar extends in a perpendicular direction across the spa cover. The pivot bar is anchored to the spa by... | 09/28/2004 |
| 6766542 | Method for and protective winter covering for swimming pools A protective winter covering for swimming pools including an open mesh weave of scrim material, the mesh having warp and weft strips forming a substantially thin layer having opposed major surfaces, where both the warp and weft strip materials are of a heat absorbin... | 07/27/2004 |
| 6742196 | Spa cover remover A spa cover remover has a spa cover support including a pair of parallel side bars at opposite respective sides of a spa, the side bars having upper and lower ends, with a crossbar extending between the upper ends of the side bars, a pivot shaft extending between th... | 06/01/2004 |
| 6718566 | Vertically adjustable spa cover assembly A vertically adjustable spa cover assembly includes a cover movable above a spa between a raised position and a lowered position, the raised position being vertically above the lowered position. Lifts are used to raise and lower the cover. The cover assembly may als... | 04/13/2004 |
| 6708706 | Retractable pool shade with support stand A retractable pool shade, for use with a pool having a pool edge and a pool deck extending outside of the pool edge, having a shading assembly and a stand. The stand has a pair of horizontal members which extend parallel to each other and are supported by legs. The ... | 03/23/2004 |
| 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 |
| 6671895 | Dual purpose beading for swimming pool liners The present invention relates to a dual purpose beading for swimming pool liners. The beading includes a first portion structured and arranged for attachment of a swimming pool liner thereto and a second hook shaped portion. The hooked shaped portion is a... | 01/06/2004 |
| 6665890 | Spa cover lifter A device for removing spa covers and putting them aside while the spa is in use, and returning them to cover the spa after use. This invention lifts the cover in the flat position, then the cover may be rotated clockwise or counter clockwise to uncover th... | 12/23/2003 |
| 6659688 | Organic slurry basin storage cover and method of fabricating and deploying cover A cover assembly for an organic waste lagoon basin and a method of making and deploying such a cover assembly. A cover includes connected cover panels or sections. In one form of the invention the panels are comprised of a single layer of geotextile fabri... | 12/09/2003 |
| 6658674 | Self-draining swimming pool cover A drain assembly for a pool cover which includes a drain fitting positioned in a hole formed in the pool cover; a screen connected to the pool cover and positioned above the drain fitting to minimize the amount of debris entering the drain fitting; a buoy... | 12/09/2003 |
| 6647561 | Spool A spool for use with a swimming pool cover or with a shade cover. The spool has a roller assembly, and a cover (not shown) may be wound onto the roller assembly or unwound from the assembly. The roller assembly has a pre-tensioned rubber strip that when v... | 11/18/2003 |
| 6640353 | Solar pool heating system A solar pool heating system for providing a foldable floating frame and heat absorbent cover to permit selective heating of a pool of water. The solar pool heating system includes a floating frame and a cover member of heat absorent material. The frame po... | 11/04/2003 |
| 6637046 | Heat retaining swimming pool cover A heat retaining swimming pool cover (1) is floatable on pool water (2) in a swimming pool (3) and has a plastic upper film (5) for facing toward the atmosphere (6), a plastic lower film (8) for facing toward the pool water (2), sufficient spaced apart ai... | 10/28/2003 |
| 6634036 | Foldable spa cover and lift unit A combination foldable spa cover and lifting device including a folding spa, cover with integral lifting sockets and a lifting device having a pair of first ends pivotally connectable to a spa structure, and second ends having engagement shafts keyed to t... | 10/21/2003 |
| 6622318 | Pool cover system with retracting and adjacent extending mechanisms operable by a portable power source A pool cover system including a pool cover collecting drum supported for rotation on its ends and a drive gear connected to the drum by a drive shaft. A power gear is operably connected to a portable electric drill by a power shaft, engaging the drive gea... | 09/23/2003 |
| 6618868 | Lightweight insulated spa cover and method therefor A lightweight insulated cover which may be easily installed and removed from an above ground spa has a top section and four side walls coupled to the top section. The top section and the four side walls comprised of an insulated layer, and a second layer ... | 09/16/2003 |
| 6615417 | Anti-entrapment swimming pool and wading pool main drain cover and method An anti-entrapment, anti-vortex swimming pool and/or wading pool drain cover having a discus or wheel-like configuration with a relatively large radius, substantially larger than the radius of a pool drain which the drain cover is intended to cover, so th... | 09/09/2003 |
| 6612079 | Clarifier cover In the present invention, there is provided a removable cover for retaining off-gases inside a clarifier. The cover comprises trusses extending across the clarifier and a flexible sheet laid across the trusses. Structural angles enclose the clarifier and ... | 09/02/2003 |
| 6606752 | Coverable above-ground pool An above-ground pool (1) having a protruding edge (3) and which can be covered with a cover (6): the folded cover, possibly enclosed in a bag (7) is anchored to a first location (P1); next, it is unfolded and drawn over the pool successively on... | 08/19/2003 |
| 6574804 | Safety and life-saving device for aquatic environment The invention concerns an inflatable grille, whereof the numerous openings are provided with open-worked netting, capable of being spaced apart and locked for rescuing in an aquatic environment someone stuck beneath the device to move onto the device and ... | 06/10/2003 |
| 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 |
| 6539559 | Anti-litter float for a swimming pool and method of using anti-litter float for a swimming pool An anti-litter float or balloon for a swimming pool. The single compartment balloon abuts continuously the containing wall, and the self-mooring balloon prevents litter from being disbursed into the pool water. Flaps and/or element-resistant covers can be... | 04/01/2003 |
| 6523190 | Heat retaining swimming pool cover A heat retaining swimming pool cover (1) is floatable on pool water (2) in a swimming pool (3) and has a plastic upper film (5) for facing toward the atmosphere (6), a plastic lower film (8) for facing toward the pool water (2), sufficient spaced apart ai... | 02/25/2003 |
| 6523189 | Pool cover apparatus A pool cover apparatus for keeping debris out of a pool while allowing sunlight, rain, and air to enter the pool then the pool is not in use. The pool cover apparatus includes a cover portion comprising a mesh material with an elastomeric securing member ... | 02/25/2003 |
| 6519788 | Vented automatic cover for a swimming pool A swimming pool has a plurality of walls with a pair of side walls on opposite sides of the pool. The plurality of walls define a target water level within the swimming pool. A pair of tracks are respectively associated with each side wall and positioned ... | 02/18/2003 |
| 6517285 | Method and system for water conservation A method and system for water conservation relies upon the reduction of evaporative losses from water storages having a high ratio of surface area to depth. The system comprises a plurality of buoyant flexible membrane strips interconnected along adjacent... | 02/11/2003 |
| 6497533 | Drainage system with membrane cover and method for covering wastewater reservoir A membrane cover is mounted at the surface of a wastewater reservoir. The membrane cover has a flexible buoyant impermeable membrane affixed to the perimeter walls of the reservoir and loosely laid over the wastewater level inside the reservoir. An array ... | 12/24/2002 |
| 6487734 | Pool cover assembly A pool cover assembly for covering for covering an above ground swimming pool during periods of non-seasonal use includes a plurality of pool cover brackets arranged about and on the railing of the swimming pool with each pool cover bracket including a ho... | 12/03/2002 |
| 6487733 | Self-draining swimming pool cover A drain assembly for a pool cover which includes a drain fitting positioned in a hole formed in the pool cover; a screen connected to the pool cover and positioned above the drain fitting to minimize the amount of debris entering the drain fitting; a barr... | 12/03/2002 |
| 6442799 | Hinge A hinge comprising a base and a plate rotataby coupled to the base about a turn axis fixed in the base. The hinge further includes a swing member rotably coupled to the plate about a pivot axis fixed relative to the plate and a spring coupled between the ... | 09/03/2002 |
| 6442773 | Above ground pool cover A pool cover support frame has a central vertical support member with a plurality of radially projecting spokes extending from a hub mounted atop the central vertical support member. The spokes attach to the edge of the pool walls via clamps, and are spac... | 09/03/2002 |
| 6430879 | Collapsible housing A retractable cover for protecting designated area and spaces. A stationary rigid portion receives telescopically extending portions movable over guiding assemblies to house vehicles and other objects and protect them. When the telescopic rigid portions a... | 08/13/2002 |
| 6421962 | Swimming pool assembly A swimming pool cover is provided for a swimming pool which can be lowered to cover portion of the room floor and can be then raised to a position above the pool and adjacent the ceiling. The cover is suspended from the ceiling by various wire ropes and a... | 07/23/2002 |
| 6393630 | Spa cover lifter A device for removing spa covers and storing them, while the spa in use, and returning them to cover the spa after use. This invention takes a different approach to the mounting requirements for the system hardware. Most notable, all weight of the covers ... | 05/28/2002 |
| 6389757 | Clarifier cover In the present invention, there is provided a removable cover for retaining off-gases inside a clarifier. The cover comprises trusses extending across the clarifier and a flexible sheet laid across the trusses. Structural angles enclose the clarifier and ... | 05/21/2002 |
| 6385791 | Pool cover The pool cover is made of multi-layer light weight construction having a translucent top layer to permit sunlight to pass through an opaque bottom layer for absorbing sunlight passing through the transparent layer. In addition, a plurality of pockets are ... | 05/14/2002 |
| 6381767 | Swimming pool cover support A swimming pool cover support having: a central hub, a number of knockdown arms radiating from the central hub, and a number of mounting brackets each being respectively secured to one of the knockdown arms.... | 05/07/2002 |
| 6381766 | Spa cover removal apparatus and method A spa cover removal apparatus includes a pivot frame assembly having a pair of elongate side arms spaced apart to receive opposing cover side surfaces between the same for rotatably supporting the spa cover. Fixed to the spa is a stationary base, for pivo... | 05/07/2002 |
| 6374433 | Moveable hot tub cover structure A moveable hot tub cover structure removably covers a hot tub and includes at least one rail structure mounted generally adjacent the hot tub and extending outwards therefrom and a rigid hot tub cover structure including at least two upright walls having ... | 04/23/2002 |
| 6357964 | Drainage system with membrane cover and method for covering wastewater reservoir A membrane cover is mounted at the surface of a wastewater reservoir. The membrane cover has a flexible buoyant impermeable membrane affixed to the perimeter walls of the reservoir and loosely laid over the wastewater level inside the reservoir. An array ... | 03/19/2002 |
