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 |
| 7348502 | Counterbalance for a platform balance A platform balance includes a first frame support and a second frame support movable relative to the first frame support. At least one counter balance assembly is provided to support the static weight of the first frames support and elements connected thereto. The c... | 03/25/2008 |
| 6600110 | Portable digital readout scale A portable scale is provided that includes a fulcrum, a balance beam pivotally mounted on the fulcrum, the balance beam supporting a load pan on one end and including an elongated portion having a measurement strip extending along the elongated portion of... | 07/29/2003 |
| 6509534 | Portable scale A lightweight, portable scale, including a balance beam pivotally positioned on a fulcrum, contained in a tear-drop shaped carrying case. The portable scale has a load pan on one end of the balance beam and a graduated scale, configured to accommodate sli... | 01/21/2003 |
| 6284987 | Embedded weight scale A weighing scale detects and indicates changes in a small weight that is embedded within a much larger residual weight. The scale device has a base and a top weighing pan above it, with a linkage supported between the base and the top pan. A counterbalanc... | 09/04/2001 |
| 4624332 | Special purpose scale A balance-type scale is provided which is made nearly substantially entirely of plastic, thereby being resistant to environmental degradation. A counter-balance weight is of metal, but is embedded within the plastic. The scale is of two-part construction,... | 11/25/1986 |
| 4544043 | Electronic scale with counterbalance An electronic scale used for weighing an object or material. The scale includes a weighing platform arranged to move upon receipt of a material thereon. The device further includes support means, a variable capacitor having a first and a second plate, spr... | 10/01/1985 |
| 4433742 | Linear motion linkage A mechanical linkage particularly useful in weighing systems for constraining the motion of a reference member to be along a reference axis.... | 02/28/1984 |
| 3987861 | Apparatus for nullifying the effects of angular acceleration of frames tiltably mounting balance beams and the like A device which includes a frame supporting a lever arm for tiltable movement about a horizontal axis intermediate the ends thereof and, more particularly, to an improved apparatus for nullifying the effects of angular acceleration of such frame relative t... | 10/26/1976 |
