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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 |
| 7143837 | Soil conditioning rotary reel for secondary tillage operations A soil conditioning rotary reel for secondary agricultural tillage implements is disclosed. The reel incorporates formed bars slightly spiraled along the length thereof that increase the overall strength of the reel and, because of the shape of the formed bars, supp... | 12/05/2006 |
| 7143836 | Soil conditioning rotary reel for primary tillage operations A soil conditioning rotary reel for primary agricultural tillage implements is disclosed. The reel incorporates formed bars slightly spiraled along the length thereof that increase the overall strength of the reel and, because of the shape of the formed bars, suppor... | 12/05/2006 |
| 7048069 | Agricultural disc harrow and method An agricultural implement consisting primarily of a towed frame supported on retractable wheels, the frame having a plurality of independently adjustable spindles for setting height and angle of attack for various size rotatable discs. Each disc is staggered to redu... | 05/23/2006 |
| 4703809 | Apparatus for soil working An apparatus for soil working, consisting of a frame (1) drawn over the ground by a vehicle, a first roller (7) mounted rotatably in the frame (1), extending transversely to the travelling direction, a second rotatably supported roller (19) arranged paral... | 11/03/1987 |
| 4450916 | Earth clod pulverizer An earth clod pulverizing and earth smoothing implement (10) has rows of heavy, cast-iron, pointed teeth (14a-v) which are wedge-shaped in cross section with the cutting edges (42) of the wedges defining substantially vertical lines facing the forwardly d... | 05/29/1984 |
| 4323126 | Ridge mulch tillage method and apparatus A method for preparing a field which has crop residue rows for subsequent row crop planting comprises cutting a plurality of furrows between crop residue rows and lifting and turning over the soil from the furrows into ridges, and simultaneously scraping ... | 04/06/1982 |
| 4091878 | Ground working implement An agricultural implement for pulverizing the top layer of the soil. It comprises a positively coupled pair of rollers rolling over the ground at unequal surface speeds so that at least one of the rollers is constantly slipping. A harrow is mounted in fro... | 05/30/1978 |
