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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 |
| 7341283 | High temperature flexible pipe joint For continuous high temperature operation over a service life in excess of twenty years, a flexible pipe joint includes various features that tend to reduce the temperature of the load-bearing flex element or reduce strain in the warmer elastomeric layers of the fle... | 03/11/2008 |
| 7337808 | Bimodal flexible-rigid hose The present invention provides a flexible hose easily converted to a rigid hose. The flexible-rigid bimodal hose comprises a plurality of adjacently engaged hollow members defining a tube having a first end, a second end, and an elongated hollow. A flexible tube as ... | 03/04/2008 |
| 7207601 | Electrofusion coupling particularly useful for coupling plastic pipes An electrofusion coupling for coupling a first device to a second device, includes a first part having an outer end for coupling to the first device, and an inner end formed with a surface of a curved configuration; and a second part having an end engaging the inner... | 04/24/2007 |
| 7142415 | Computer controlled display device The present invention is a computer controlled display device. In one embodiment, the display device includes a flat panel display having an input for receiving display data. Additionally, a moveable assembly may be coupled to the display. The moveable assembly may ... | 11/28/2006 |
| 7096958 | Compliant buoyancy can guide A floating offshore platform, of the type having a buoyancy can disposed within a support structure, includes a can guide assembly that has at least two compliant compression pads that are configured and arranged to provide a non-linear load-versus-deflection charac... | 08/29/2006 |
| 7093861 | Exhaust pipe joint structure and coil spring used in the same An automobile exhaust-pipe joint structure and a coil spring for use therein. The exhaust pipe connection structure includes a first exhaust pipe having a first flange section, a second exhaust pipe having a second flange section, a ball joint section for connecting... | 08/22/2006 |
| 6854768 | Fluid conduits and method of manufacturing same A continuous flexible conduit is formed from like-configured components, each having a male joint member and a female joint member with a passageway extending therethrough. The female joint member is over-molded about a corresponding male joint member to form a subs... | 02/15/2005 |
| 5683119 | Pipe joint and seal therefor A joint seal has a through bore and two spherical spaced convex surfaces which mate with respective concave spherical surfaces on a pair of adjacent flanges. The flanges are welded to and about the periphery of corresponding spaced pipes one of which is i... | 11/04/1997 |
| 5526984 | Hydrogen torch having concentric tubes and reverse ball joint connection A hydrogen torch comprising concentric inner and outer fluid delivery tubes wherein the outer tube comprises silica and the inner tube comprises silicon carbide. One end of the inner tube is connected to a third tube comprised of silica which has an inlet... | 06/18/1996 |
| 5437480 | Pressure sealed connecting apparatus for conduits carrying pressure media A pressure sealed connecting apparatus is provided for the connection of first and second conduits adapted to carry a pressure medium and to rotate relative to one another. Each of the conduits has tangentially contacting countersurfaces for contacting sp... | 08/01/1995 |
| 5141259 | Flexible connector A flexible connector has a plurality of bearings housed in a single housing to attenuate vibration and noise. In one embodiment, the bearings have a spherical configuration with the center point of the spherical segment of one of the bearings at a differe... | 08/25/1992 |
| 5127681 | Flexible connector A connector for sealingly joining together lengths of tubing such as those used in automobile fluid conveying systems accommodates large angular bending and twisting motions as a result of a spherical shell which rotates inside guide/thrust circumferentia... | 07/07/1992 |
| 4984827 | Concentric piping flex joint Several versions of a flex joint (10, 100, 200) are provided which provides for relative flexible movement between a first member and a second member about a pivot point. The pivotal motion is provided by the use of elastomeric assemblies which are placed... | 01/15/1991 |
| 4840409 | Swivel flow line connector A swivel flow line connector is disclosed for use in misaligned connections. The connector includes male and female flanged tubular members and a seal ring positioned therebetween. The male member and the seal ring have mating annular spherical surfaces w... | 06/20/1989 |
| 4706998 | Axial displacement coupling A flexible connector for effecting fluid-tight flexible joints between fluid conduits which comprises a housing with a central bore, a pair of movable flanges extending one from each end of the central bore and means interposed between the flanges and the... | 11/17/1987 |
| 4515399 | Symmetrically loaded flexible connector having multiple passageways A housing (110) defines an enlarged central bore (162), from which protrudes a multi-conduit nipple (126). An elastomeric seal (128) flexibly joins the inner end of the nipple to the outer end of a respective sliding seat (116), the inner end of the seat ... | 05/07/1985 |
| 4153278 | Hydraulically operated misalignment connector A misalignment connector for large pipelines, conductor pipes or the like, includes an internal, metal seal ring having an external spherical periphery which is axially and circumferentially loaded between opposed internal spherical surfaces of connector ... | 05/08/1979 |
| 4153281 | Misalignment connector with retained internal spherical seal A misalignment connector has a pair of hubs providing internal, opposed spherical surfaces loaded into engagement with an internal, metal sealing ring having a spherical, outer sealing surface, the hubs being constrained together to maintain loading of th... | 05/08/1979 |
| 4133558 | Misalignment pipe connector A misalignment connector for large pipelines includes an internal, metal seal ring having an external spherical surface which is axially and circumferentially loaded between opposed internal spherical metal surfaces of pipe connector hubs having parts eng... | 01/09/1979 |
| 4133557 | Preloaded misalignment pipe connector A misalignment conductor for large pipelines or conductor pipes includes an internal, metal seal ring having an external spherical surface which is axially and circumferentially loaded between opposed internal spherical metal surfaces of connector hubs. C... | 01/09/1979 |
| 4098527 | Tension bearing connector A flexible tension bearing connector includes a cylinder having a base portion supporting a central rigid spacer therein having an outer spherical surface facing away from the base portion and a center of curvature at the axis of the cylinder. A nipple ha... | 07/04/1978 |
| 4068864 | Single element flexible connection A flexible pipe line joint having an annular housing with a central cavity in which a nipple is partially submerged. The nipple has a flared end on the submerged portion to the inner surface of which an elastomeric ring is adhered. The ring is internally ... | 01/17/1978 |
