Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8061280 | Apparatus and method for delivering beneficial liquids at steady rate An apparatus for delivering a beneficial agent is disclosed in one embodiment of the invention as including a water collection chamber. A water-transporting membrane is provided to communicate with the water collection chamber. An extraction chamber receives water t... | 11/22/2011 |
| 7770529 | Method and device for filling a container with a fertilizer, pesticide, fungicide, herbicide, insecticide, chemical, or the like material for dispensing above or below a soil surface A method and device for filling a container with a fertilizer, pesticide, fungicide, herbicide, insecticide, chemical, or the like material by gravity, includes a housing with an inlet and an outlet, a valve for opening or restricting a flow between the inlet and ou... | 08/10/2010 |
| 7658156 | Apparatus and method for delivering beneficial agents to subterranean locations An apparatus for delivering a beneficial agent to a subterranean location is disclosed in one embodiment of the invention as including a water collection chamber having a substantially open end. A water-transporting membrane is provided to communicate with the water... | 02/09/2010 |
| 6966145 | Fire ant trap A fire ant trap for eradicating fire ants at a mound includes a domed enclosure having a lower rim peripherally engaging the mound and secured thereat by stakes. A tubular auger is threaded at the top end and has a perforated beveled tip that rotates into the top of... | 11/22/2005 |
| 5901498 | Tree injector A cylinder 16 has a piston 19 slidable therein, to force liquid from the cylinder out through a hollow needle 18. A pair of handles 11 extend outwardly from the cylinder, substantially normal thereof. Each handle carries a lever 30 pivoted thereon. In use... | 05/11/1999 |
| 5050340 | Pneumatic soil penetrator and chemical applicator assembly This invention relates to a pneumatic soil penetrator and chemical applicator assembly operable, for example, to penetrate a soil surface and discharge a chemical toward the root system on a tree member or to broadcast the chemical about a large area. The... | 09/24/1991 |
| 4872411 | Applicator device An applicator device for injecting additives such as fertilizers, herbicides and the like into soil. The device comprises a housing from which extends an elongated injector bar moveable to selectively supply from the housing additive or water. The bottom ... | 10/10/1989 |
| 4432291 | Underground irrigator Underground irrigation apparatus (10) having a ground penetrating part (12) arranged for being inserted into ground to be irrigated with the assistance of a handle part (14) connected to the ground penetrating part. A fluid control assembly (16) associate... | 02/21/1984 |
