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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 |
| 7317971 | System for controlling fluid flow based on a valve break point Embodiments of the present invention provide systems and methods of controlling fluid dispense to ensure clean break off of fluid at the end of a dispense process and to reduce crystallization of fluid in the dispense nozzle. One embodiment of the present invention ... | 01/08/2008 |
| 7107128 | System for controlling fluid flow Embodiments of the present invention provide systems and methods of controlling fluid dispense to ensure clean break off of fluid at the end of a dispense process and to reduce crystallization of fluid in the dispense nozzle. One embodiment of the present invention ... | 09/12/2006 |
| 6564824 | Mass flow meter systems and methods A flow meter system that calculates mass flow rate based only on a single pressure signal. A flow controller is arranged in parallel with a restriction such that a constant pressure differential is maintained across the restriction. The pressure, and temp... | 05/20/2003 |
| 6564825 | Mass flow meter systems and methods A flow meter system that calculates mass flow rate based only on a single pressure signal. A flow controller is arranged in parallel with a restriction such that it constant pressure differential is maintained across the restriction. The pressure, and tem... | 05/20/2003 |
| 5921265 | Valve operating device A device for operating a valve (1), preferably for a tire valve of a car, where a valve actuating pin (3) is biased to a valve-closing extended position and is to be depressed for opening the valve, has a disc-shaped operating member (6) arranged in a hou... | 07/13/1999 |
| 5279324 | Anti-siphoning valve assembly and plumbing fixture including same A plumbing system is provided with a coupling having a chamber, an inlet passageway through which a fluid may enter the chamber from a supply, an outlet passageway through which a fluid may exit the chamber and the coupling, and a vent passageway in fluid... | 01/18/1994 |
| 4901746 | Anticipating overspeed governor A speed responsive control device is useful for preventing a dangerous overspeed condition of a propulsor. The device begins governing before the dangerous overspeed condition occurs through the use of an acceleration responsive mechanism which actuates t... | 02/20/1990 |
| 4284096 | Automatic transmission governor having deceleration sensitive pressure switching feature A fluid pressure governor adapted to sense the driven speed of an automatic transmission torque output shaft and to develop a speed signal that may be used by an automatic transmission control circuit in conjunction with a torque demand or engine torque s... | 08/18/1981 |
| 4077371 | Fuel saving system for automobiles A fuel control system for automobile engines comprises load-sensor means for sensing the load on the engine, and fuel-mixture-ratio control means responsive to the load-sensor means to control the fuel-mixture ratio such as to produce a richer fuel mixtur... | 03/07/1978 |
| 4068635 | Pressure vent A valve is interposed between spaced valve seats of a conduit having end portions communicating with the ends of an internal combustion engine valve cover. The conduit has a vent port located between the valve seats. The valve, which is responsible to ine... | 01/17/1978 |
