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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 |
| 8020583 | Hydraulic valve arrangement The invention concerns a hydraulic valve arrangement (1) with at least two valve modules (2-6), each having a supply channel arrangement with a high-pressure channel (9) and a low-pressure channel (15), a working connection arrange... | 09/20/2011 |
| 7401623 | Double-acting valve unit A hydraulic system includes a charge pump which supplies fluid to variable displacement main pump, a fluid reservoir and valve unit. The valve unit includes a hollow housing having a first end communicated with the reservoir and a second end communicated with the ch... | 07/22/2008 |
| 7360556 | Check valve A check valve is provided, including a first hose connector housing defining an entry passage and a first valve seat, a second hose connector housing engaging the first hose connector housing and defining an exit passage, a generally flexible, perforate membrane dis... | 04/22/2008 |
| 7357150 | Safety shut-off device A safety shut-off device for sections of fluid circuits, which in case of damage or the like, have to shut off from each other on safety considerations. The safety shut-off device includes at least two valves connected to each other via a control chamber. A first pr... | 04/15/2008 |
| 7331323 | Lubricating oil supplying system for internal combustion engine A lubricating oil supplying system for an internal combustion engine includes a lubricating oil storage section for storing lubricating oil. A driven pump is driven by the internal combustion engine to suck the lubricating oil from the lubricating oil storage sectio... | 02/19/2008 |
| 7302966 | Flow control valve and method A flow control valve includes a body having a fluid passageway therethrough and first and second openings each adapted for receiving or discharging fluid from the passageway. A piston is slidably disposed in the passageway between the first and second openings of th... | 12/04/2007 |
| 7302960 | Momentary high pressure valve A valve (10) comprises a housing (12) with a valve element (14) which normally fluidicly couples a low pressure operating device, such as a transducer (30) and tubing (34) to be coupled to a patient (36) along a first flow p... | 12/04/2007 |
| 7299819 | Water flow sensor alone and in combination with a method and apparatus for selectively shutting off the flow of water to a building Embodiments disclosed herein relate in part to water flow sensors, and also to such water flow sensors in combination with a system used to selectively shut off the flow of water through a water supply pipe to a building, such as in the event of a broken water pipe.... | 11/27/2007 |
| 7287474 | Consumer pyrotechnics support apparatus A reusable pyrotechnics support device for securely holding consumer ground-based fireworks (for example, fountains, mortars, multiple aerials, and the like) in a vertical and upright position, using a sufficiently wide base that is resistant to tipping over. In cer... | 10/30/2007 |
| 7287616 | Transmission case and dipstick assembly The present invention provides a motorcycle including a front wheel, a rear wheel, a frame supported by the front and rear wheels, a crankcase, a transmission case coupled to the crankcase, a transmission access door coupled to a side of the transmission case, and a... | 10/30/2007 |
| 7282023 | Method and device for controlling the inflation of an inflatable prosthetic envelope A method and device for controlling the inflation of a prosthesis, particularly applicable to gastric implants. A liquid-containing bag is connected to a unit defining a transfer circuit under the control of the shutter and connected to an inflatable envelope, where... | 10/16/2007 |
| 7252652 | Valved catheters including high flow rate catheters A pressure activated two-way slit valve assembly is designed to be used in combination with, but not limited to, a high flow rate catheter to prevent accidental ingestion of air or loss of blood if the closure cap comes off during non-use of the catheter. In additio... | 08/07/2007 |
| 7243681 | Check valve A one-way valve which can be utilized in a toilet, particularly in a urinal, to prevent return flow of malodorous gases from the sewage system into the room wherein the toilet is installed has a body which is confined in the toilet. The body carries two sheet- or pa... | 07/17/2007 |
| 7234487 | Cross-over relief valve assembly for use in bi-directional circuit A relief valve assembly (27) for use with first (15) and second (21) conduits, one communicating high pressure. The assembly comprises a housing (29,33) defining first (45) and second (47) ports, and a poppet seat (49... | 06/26/2007 |
| 7182413 | Valve seat for a control valve in a vehicle brake system A valve seat assembly for a control valve of a vehicle brake system includes a valve seat body. A valve passageway extends through a portion of the valve seat body. A groove is formed circumferentially in an outer surface of the valve seat body. The groove defines a... | 02/27/2007 |
| 7150299 | Assembly and method for containing, receiving and storing fluids and for dispensing gas from a fluid control and gas delivery assembly having an integrated fluid flow restrictor A fluid control and gas delivery assembly and method for containing, receiving and storing hazardous fluids and for dispensing gas comprising a container, a fluid fill path, a gas dispensing path, a first shut-off valve, a pressure reducer, a fluid flow restrictor, ... | 12/19/2006 |
| 7147121 | Valve for non-spill cup A valve for use with a cap for a spill resistant cup, the cap including a spout to dispense the liquid and a valve mount extending from the spout to engage with the valve. The valve includes a generally cylindrical valve tower extending from a valve base to sealingl... | 12/12/2006 |
| 7140388 | Dual ball valve air vent valve A unitary valve housing has an upper and lower portion. The upper portion has an inner chamber for accommodating two spaced apart balls and a cylindrical side skirt with oppositely positioned openings. The lower portion is cylindrical in shape and has a top shelf wi... | 11/28/2006 |
| 7125230 | Valve with operation parameter set at assembly and pump using same A valve is assembled by telescoping a first body component relative to a second body component until reaching a relative position that corresponds to a predetermined valve operation parameter, such as a valve opening pressure. The first body component is then fixed ... | 10/24/2006 |
| 7117681 | Thrust control valve A thrust control valve includes a nozzle having a gas supply chamber, a gas jetting chamber and a connecting passage therebetween. The nozzle has an upstream inner surface defining the gas supply chamber and a downstream inner surface defining the gas jetting chambe... | 10/10/2006 |
| 7096883 | Combined check/pressure control valve The invention relates to a combined check and pressure control valve (10), comprising a check valve element (34) which is adjustable between an opened position and a closed position, and a pressure control valve element (42) which on exceeding a... | 08/29/2006 |
| 7086413 | Bi-directional damper valve for a hydraulic line, power steering system incorporating the damper valve, and methods of using same A bi-directional damper valve is provided for connecting to a hydraulic line, to regulate fluid flow therethrough. The damper valve includes a main valve body having a flow passage formed therethrough, and the flow passage widens at central portion of the valve body... | 08/08/2006 |
| 7080659 | Damper valve and hydraulic power steering apparatus using the same A damper valve includes a valve member for covering openings of communicating passages of a valve sleeve. The valve member is elastically deformed by a low flow rate of the hydraulic oil flowing from a second chamber to a first chamber of the valve sleeve and when a... | 07/25/2006 |
| 7077296 | Dispensing valve A dispensing valve is provided for dispensing fluid products. The valve includes a marginal portion, a flexible valve head with a discharge orifice therein, and a flexible connector sleeve having one end connected with the marginal portion and the opposite end conne... | 07/18/2006 |
| 7044150 | Combination vent/check valve assembly A bidirectional valve comprising a flexible member with an aperture formed therein. The flexible member reacts to differential pressure thereacross by deforming, thereby causing the inside surfaces of the aperture to separate and create a vent path. The bidirectiona... | 05/16/2006 |
| 7037303 | Urinary flow control valve A flow control valve (22) such as for a catheter (10) allows discharge of urine from a bladder (12) by manual actuation. The valve (22) may be a double-duckbill valve (22) with a single slit (62) at one apex (60a | 05/02/2006 |
| 7028707 | Valve for use with chest drainage system A valve for use in a chest drainage device is disclosed, the chest drainage device is adapted to receive liquid and air from a patient's chest cavity via an inlet and to permit air to escape through an outlet for air to leave the chest drain, the inlet and outlet de... | 04/18/2006 |
| 7025084 | Integrated pressure management system for a fuel system An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the head space in a fuel tank, a canister that collects volatile fuel vapors from the head spa... | 04/11/2006 |
| 7013916 | Sub-atmospheric gas delivery method and apparatus An apparatus for containing and delivering hazardous gases at sub-atmospheric pressure from a pressurized container is provided which includes a valve body in sealed communication with an outlet orifice of the pressurized container. The outlet orifice of the pressur... | 03/21/2006 |
| 7013913 | Flow control valve In a flow control valve, a spool is fitted into a cylindrical body including an input port and an output port. A spring is disposed between the spool and a flow rate setting plug at an end of the cylindrical body. A flow bypass communicating with the input port and ... | 03/21/2006 |
| 7007708 | Flow control valve A valve mechanism to control fluid flow between a fluid pumping device and a system that includes an inlet from the fluid pumping device, a first valve, a second valve, a first outlet fluidly connected to the system, and a second outlet. The first valve prevents bac... | 03/07/2006 |
| 7004194 | Check valve with pressure relief feature A check valve has a valve body and flapper. The flapper has a gasket which is sandwiched between a flapper base and a flapper cover. The flapper base has a flapper base stem which extends through an aperture in the gasket is retained within an aperture in the flappe... | 02/28/2006 |
| 6953052 | Fuel system shut-off valve A fuel system shut-off valve includes a valve body bounding a fuel space, the valve body having an inlet opening and an outlet opening communicating with the fuel space. A piston assembly in the fuel space includes a main piston member that is movable relative to th... | 10/11/2005 |
| 6948481 | Electrical connections for an integrated pressure management apparatus An apparatus, system and method of establishing a threshold for a leak detection test that is performed on a headspace of a fuel system. A fuel vapor pressure management apparatus includes a housing, a pressure operable device, and a sensor. The housing defines an i... | 09/27/2005 |
| 6929240 | Solenoid valve A valve 6 fixed on a tip 5a of a rod 5 as a moving part, abuts a sealing part 9 of a fluid passage 8 when the rod 5 moved to the left, and interrupts a flow of fluid, is made, for instance, of elastic materials such a... | 08/16/2005 |
| 6910500 | Integrated pressure management system for a fuel system An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the head space in a fuel tank, a canister that collects volatile fuel vapors from the head spa... | 06/28/2005 |
| 6843271 | Fuel tank pressure control valve including an integrated sensor A device for controlling fluid flow between an evaporative emission space of a fuel tank and a fuel vapor collection canister that includes a housing, a valve, a seal, an electric actuator, an electric transducer, and an electrical connector. The housing includes a ... | 01/18/2005 |
| 6840232 | Fluid flow through an integrated pressure management apparatus An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the headspace in a fuel tank, a canister that collects volatile fuel vapors from the headspace... | 01/11/2005 |
| 6742540 | Two-way orifice check valve device for hydraulic circuit A two-way orifice check valve device for a hydraulic circuit is disclosed. The hydraulic circuit which controls the engagement and release of a friction element, such as a clutch, is simplified to reduce the manufacturing cost, as well as improve functioning during ... | 06/01/2004 |
| 6701901 | Connection between an integrated pressure management apparatus and a vapor collection canister An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the headspace in a fuel tank, a canister that collects volatile fuel vapors from th... | 03/09/2004 |
