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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 |
| 7396218 | Micro irrigation pump An irrigation device (FIG. 1) for pumping fluids, particularly water, which can be constructed for a minimal cost and operated using only human power and having a simple and efficient mechanism making it suitable for use in undeveloped areas. The device inclu... | 07/08/2008 |
| 5934888 | Aspirator pump An aspirator pump, especially for medical purposes, has a receptacle with two chambers arranged alongside each other, which are connected with a suction tube, and on each of which an element is arranged which is movable approximately parallel to the other... | 08/10/1999 |
| 5911284 | Downhole mud motor A downhole motor operated by circulating mud fluid in the wellbore is revealed. The motor has nested rotors and is geared to a bit drive. The motor is a dual-rotor pump that is operated as a motor with mud flow through the rotor housing on end connections... | 06/15/1999 |
| 5807077 | Foot operated pump guard A foot operated pump guard assembly for a portable pump includes a pair of upwardly extending support legs connected at their lower ends to a pump. A foot guard substantially surrounds an operator's foot and is pivotally connected to the upwardly extendin... | 09/15/1998 |
| 5145338 | Low pressure fluid pump A low pressure air pump includes an outer flexible envelope which encloses an articulate frame. When the envelope is manually compressed against a smooth surface, an intake aperture on the bottom side of the envelope is sealed and air is forced out of the... | 09/08/1992 |
| 4862533 | Sleeping bag and an air mattress An inflatable air mattress in combination with a sleeping bag. The air mattress is slidably disposed with in a zipper controlled pocket with the sleeping bag. The air mattress includes an electric pump, a bellows member or the like, which when energized o... | 09/05/1989 |
| 4722263 | Portable hydraulic pump A combination hydraulic pump and integral container apparatus comprising a container including generally symmetrical first and second members coupled to each other for relative pivotal movement between a closed position wherein the members define a genera... | 02/02/1988 |
| 4289458 | Foot pumps A foot pump comprises a base member and an operating member pivotally connected to the base member. A piston-and-cylinder assembly is connected between the members. In use the user depresses the operating member with his or her foot, thereby causing air t... | 09/15/1981 |
| 4242060 | Foot pumps A foot pump comprises a base member and an operating member pivotally connected to the base member. A piston-and-cylinder assembly is connected between the members. In use the user depresses the operating member with his or her foot, thereby causing air t... | 12/30/1980 |
| 4187845 | Apparatus for feeding anesthetic and/or life sustaining gases during a surgical procedure A mechanically operable bellows for feeding anesthetic and/or life sustaining gases to a patient during a surgical procedure.... | 02/12/1980 |
| 4173431 | Road vehicle-actuated air compressor and system therefor A road vehicle-actuated air compressor and a system are disclosed for utilizing compressed air to operate an electrical generator to generate electricity. The road vehicle-actuated air compressor includes an actuator, a cylinder, and a piston in the cylin... | 11/06/1979 |
| 4115034 | Vehicle-actuated air compressor and system therefor A vehicle-actuated air compressor and a system are disclosed for utilizing compressed air to operate an electrical generator to generate electricity. The vehicle-actuated air compressor includes an actuator, a cylinder, and a piston in the cylinder recipr... | 09/19/1978 |
| 4048800 | Hydraulic jack having rotating pump handle Presented is a hydraulic jack structure having a pump assembly in connection with which is rotatably mounted a pump handle assembly which may be rotated in a horizontal plane through about 320° to permit selective positioning of the handle during a pumpi... | 09/20/1977 |
