Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 6142239 | Core guide apparatus for aeration core harvesting machine A core harvesting machine that can be mounted to the rear of a conventional aeration machine to receive green cores directly from the aeration machine without having the cores discharged to the ground. The core harvesting machine has a rotating brush core... | 11/07/2000 |
| 4796711 | Apparatus for removing plastic film from raised plant beds An apparatus used in agriculture and more specifically to an apparatus for removing the plastic film cover from raised plant beds in which the edges thereof are tucked under soil placed in overlying relation to the downwardly inclined side edges of the pl... | 01/10/1989 |
| 4181180 | Soil cultivating machines A soil cultivating machine has a front row of subsoil penetrating tools and a second soil working member or row of members that work the top soil. The tools can be strip-shaped tines, at least some of which have plate-shaped elements pivoted to their lowe... | 01/01/1980 |
| 4130167 | Soil cultivating implements A cultivator has a row of soil working members mounted on upwardly extending shafts journalled in a hollow frame portion that houses driving connections for the shafts. The working members have tines that are deflectable relative to their shafts, such as ... | 12/19/1978 |
| 4128129 | Soil cultivating implements A soil cultivating machine has a row of tined rotors on an elongated frame portion that extends transverse to the direction of travel. An elongated soil crumbling member is pivoted to the frame portion at the front of that portion and settable to level th... | 12/05/1978 |
