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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 |
| 4747715 | Vacuum buffered ribbon transport system A printer having extended ribbon capacity is provided with a vacuum buffering system which stores ribbon on either side of a ribbon utilization mechanism, illustratively an impact print head. In a preferred embodiment, the ribbon is stored in a pair of va... | 05/31/1988 |
| 4710781 | Thermal printer color dye frame identification using red and yellow light sources In a thermal printer for printing color images which uses a carrier having a repeating series of spaced frames of yellow, magenta and cyan colored heat transferable dyes, apparatus for identifying the different color frames of each series uses a source of... | 12/01/1987 |
| 4591283 | Ribbon correction unit for printers For compensating for the lateral displacement of the ribbon (4) during the print operation in impact printers with revolving type carriers (9), an inclined pivotable roller (1) is used which is taken along by contacting the moving ribbon. This roller has ... | 05/27/1986 |
| 4542998 | Character set printing means utilizing rolling pressure contact for printing A printing apparatus is provided which utilizes rolling pressure contact for printing, and includes a plurality of sets of serially arranged character elements mounted for movement on the external surface of a printing drum. Movement of the sets to place ... | 09/24/1985 |
