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 |
| 7530607 | Quick torque coupling A coupling for mechanically connecting modular tubular struts of a positioning apparatus or space frame, comprising a pair of toothed rings (10, 12) attached to separate strut members (16), the teeth (18, 20) of the primary rings (10, 12)... | 05/12/2009 |
| 7497484 | Medical coupling system An adapter that bridges the connecting ends of a medication providing device and a fluid connector includes a housing shroud that is fitted at one end with a core and at its other end with an inner shroud. A catch hub is provided within the housing shroud to act aga... | 03/03/2009 |
| 7431352 | System for providing communication between the interior and the exterior of a compartment A system for making a connection between the interior and exterior of a compartment, comprising a door opening through the compartment wall, a connector body which can engage with the wall, and having a connection port through it, and a removable cover on the connec... | 10/07/2008 |
| 7410193 | Tube couplings A tube coupling has a coupling body with a throughway open at one end to receive an end portion of a tube. A seal encircles the throughway to seal with the periphery and end of the tube and a cap is mounted on the body having a tube locking device rotatably mounted ... | 08/12/2008 |
| 7399000 | Hose lock apparatus for vacuum cleaner A hose lock apparatus for a vacuum clean that provides easy attachment and detachment of a hose to and from an air inlet of the vacuum cleaner body, is disclosed. The hose lock apparatus includes a hose clamp in a form of a hollow cylinder and engaged with an end of... | 07/15/2008 |
| 7350834 | Coupling device constitute two halves A coupling device for holding together a coupling joint. The device may include two coupling halves, which may be articulated relative to one another. The coupling device may be arranged in its active position to engage portions of two interconnected pipes adjacent ... | 04/01/2008 |
| 7341281 | Connector for high-pressure riser A connector (1) for joining two pipe sections (2) and (3) making up a riser includes a male tubular element (4) and a female tubular element (5) which fit into each other and have an axial shoulder (8) or (9). Locking... | 03/11/2008 |
| 7311011 | Apparatuses for interaction with a subterranean formation, and methods of use thereof An access casing assembly structured for placement at least partially within a subterranean formation by forcing the access casing assembly thereinto, comprising a plurality of casing sections operably coupled to form a central elongated cavity for providing access ... | 12/25/2007 |
| 7278491 | Perforating gun connector Controlled Buoyancy Perforating technology for highly deviated and substantially horizontal wellbores may include long perforating guns assembled on a rig floor from a multiplicity of light weight and highly engineered shaped charge carrier joints. Tubular housings ... | 10/09/2007 |
| 7192065 | System for providing communication between the interior and the exterior of a compartment A system for making a connection between the interior and exterior of a compartment, comprising a door opening through the compartment wall, a connector body which can engage with the wall, and having a connection port through it, and a removable cover on the connec... | 03/20/2007 |
| 7172139 | Security clip for spray gun connector A connector system for releasably securing a reservoir to a spray gun includes hook members on a lid of the reservoir that engage a flange of an inlet adaptor on the spray gun with a push/twist action to secure the reservoir to the spray gun. A retainer clip mounted... | 02/06/2007 |
| 7156114 | Angle adjusting device for the canopy of a hang umbrella An angle adjusting device for the canopy of a hang umbrella includes a cantilever divided into a left-sectional cantilever and a right-sectional cantilever, with a connecting plug inserted in between the interiors of the left-sectional and the right-sectional cantil... | 01/02/2007 |
| 7100948 | Tube couplings A tube coupling has a coupling body with a throughway open at one end to receive an end portion of a tube. A seal encircles the throughway to seal with the periphery and end of the tube and a cap is mounted on the body having a tube locking device rotatably mounted ... | 09/05/2006 |
| 7040670 | Coupling apparatus The present invention relates to an alternative pipe coupling apparatus, to conventional tapered screw threads usually used to join ends of pipe sections to fixtures. The invention utilizes a bayonet style interlocking arrangement having a male element and a female ... | 05/09/2006 |
| 7021668 | Hydraulic line attachment device and method A hydraulic line attachment device is provided. The hydraulic line attachment device comprises a first assembly comprising a first frame constructed for holding a plurality of first hydraulic line couplers and a first coupling member; and a second assembly comprisin... | 04/04/2006 |
| 6969016 | Dampening water spraying device A dampening water spraying device includes: a nozzle for spraying dampening water; a nozzle holder including, an end surface connectable to the nozzle, and an outer peripheral portion provided with at least one gro... | 11/29/2005 |
| 6925898 | Variable sensor shaft retention apparatus Embodiments of the present invention are directed to providing secure retention of the variable sensor and the rotational object to which it is attached for measuring rotation thereof. In one embodiment, a sensor retention apparatus comprises a rotational sensor inc... | 08/09/2005 |
| 6918689 | Pivoting auxiliary vehicle light assembly An auxiliary light assembly is provided for a tractor having a front-mounted implement. The assembly includes a lower support and an upper support pivotal with respect to the lower support. The lower support has a cylindrical member which is attached to a frame. Det... | 07/19/2005 |
| 6908123 | Bayonet quick coupler A quick coupler formed of two identical sectors that snap lock together in a radially inward direction relative to a central axis of an annular hole passing through the coupler. The coupler is in the form of a nut or housing for surrounding the ends of two conduits ... | 06/21/2005 |
| 6902211 | Quick connect/disconnect coupling A quick connect/disconnect coupling that eliminates the need for tools and the tedious loosening and tightening of hose clamps when detaching and reattaching hoses, such as dust collection system hoses, between machines. The coupling includes a first fitting adapted... | 06/07/2005 |
| 6877778 | Linearly actuated quick connect pipe couplings Linearly actuated quick connect pipe couplings which include a male element and a female element adapted to fit into each other along a principal axis. One of the elements includes at least one ramp for receiving a radial projection mounted to the other element whic... | 04/12/2005 |
| 6871804 | Disconnectable nozzle for hot air A disconnectable hot air nozzle device is provided with a nozzle holder 2 having an introducing portion 2c and a hook shaped retaining portion 2d, an attachment 3, and a cover 4 vertically replaceable for a predetermi... | 03/29/2005 |
| 6843911 | Base receptacle with fixed retainer for filter cartridge incorporating a peripheral compatibility matrix A filter assembly employs radially inwardly and outwardly displaced portions of a peripheral roll seam on the cartridge as components of a cartridge compatibility matrix. A base defines an axial entrance to a fixed retainer that is complementary to the compatibility... | 01/18/2005 |
| 6811190 | Tab-lock fastener for interlocking vent pipe The present invention provides a tab-lock fastener for connecting first and second vent pipes typically used to exhaust products of combustion of natural gas appliances. The tab-lock fastener includes a guide and a tab-lock receptacle formed on a male end of the fir... | 11/02/2004 |
| 6764103 | Method and apparatus for locking a tubular quick coupling A heavy duty, locked, tubular quick coupling used for coupling oil and gas well tubing or pipe joints, thus allowing long strings of pipe and tube joints subsequently connected to at least one such quick coupled joint to be lifted as a string, thereby applying tensi... | 07/20/2004 |
| 6763701 | Method and apparatus for sealing and testing a tubular quick coupling A quick-coupling union for oil and gas tubular members that provides a more stable joint connection, a redundant seal arrangement, and a method for pressure testing the seals. The union and sealing arrangement includes an elongated tubular receiving member, further ... | 07/20/2004 |
| 6739124 | Exhaust gas purification system An exhaust gas purification system for denoxing exhaust gases of a combustion unit on an SCR catalyst 2 utilizing ammonia (NH3) additionally introduced into the exhaust gas flow before the SCR catalyst 2, which has at least one reducing agen... | 05/25/2004 |
| 6732755 | Attachment mechanism for attaching ports to liquid containers A battery watering system includes a filler unit mounted by means of an attachment mechanism to the flanged apertures of a three cell six volt lead acid battery. The filler unit is connected by a supply and drain line to a feed unit in the form of a reservoir tank a... | 05/11/2004 |
| 6546573 | Drain cover assembly A drain cover assembly with a hollow conduit member with an open end that penetrates and extends through a drain port of a bathtub, and a drain cover with a center opening, a horizontal flange, and an integral sleeve that extends into the open end of the ... | 04/15/2003 |
| 6530682 | Structure multi-cut type lamp pipe connector componentry A connecting element of a multi-sectional lamp tube comprises a locking ring, a mounting joint, a threaded tube, and a fixing ring. The locking ring has a hollow bottom end and a though hole. Two sides of the through hole of the locking ring are installed... | 03/11/2003 |
| 6511103 | Sealed connection device for a ventilation filter The inventive device includes a cylindrical housing adapted to receive a filter, the housing having an axis being fixed at a second end to a ventilation circuit flange and having a first end mounted on a mobile companion flange, the companion flange being... | 01/28/2003 |
| 6497435 | Arrangement for connecting two tubular elements A coupling assembly for connecting two tubular elements, in particular ends of two tubes of an air-conditioning system, includes two inter-engaging locking parts which, for the purpose of achieving a locked position, can be rotated with respect to one ano... | 12/24/2002 |
| 6481763 | Waste pipe connector An under-sink waste pipe system comprises first and second waste pipes telescoped together, a softly resilient seal ring that both seals the waste-pipe juncture and secures the waste pipes together, a locking ring for compressing the sealing ring into res... | 11/19/2002 |
| 6325425 | Hose coupling A connector (1) for flexible fluid lines, such as garden water hoses, comprising a universal body member (3) which is common to all interconnecting components of the system, wherein there is a twist-together, twist-apart bayonet connection between compone... | 12/04/2001 |
| 6305426 | Expansion tube joint and assembling method thereof An expansion tube joint of the present invention comprises a first cylindrical body, a second cylindrical body inserted along an axis of the first cylindrical body, a seal member mounted between the first and second cylindrical bodies closer to an inserti... | 10/23/2001 |
| 6108865 | Portable handheld blower/vacuum apparatus The invention relates to a portable handheld blower/vacuum apparatus having a housing and a blower scroll formed in the housing. An impeller is provided in the blower scroll. Air is supplied to the blower scroll via an air inlet and air is directed away f... | 08/29/2000 |
| 6102067 | Bifurcated fill valve assembly A new Bifurcated Fill Valve Assembly for permitting removal of a fill valve from a toilet tank without disturbing the seal at the toilet tank and without disconnecting the water supply line. The inventive device includes a tank fitting extended through an... | 08/15/2000 |
| 5975116 | Valve having multi-piece valve housing A vent valve for a gasoline tank has a multi-piece valve housing that is inserted into the tank through a tank wall opening. The housing includes a valve member and a cap member that has a flange that is ultrasonically welded to the gasoline tank and a co... | 11/02/1999 |
| 5960819 | Valve having multi-part valve housing A vent valve for a gasoline tank has a multi-piece valve housing that is inserted into the tank through a tank wall opening. The multi-piece housing includes a valve member of acetal resin and a cap member of high density polyethylene (HDPE) that has a fl... | 10/05/1999 |
| 5833524 | Dust collection system for a power tool A dust collection system for a power tool which comprises a drive unit, a body, a tool support, and a collection chute. The body defines an inlet opening and a discharge opening, the body having a communicating conduit located within the body which commun... | 11/10/1998 |