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 |
| 6972358 | Electronic keyboard musical instrument Casing of an electronic keyboard musical instrument includes two discrete parts: a main casing section; and a rear casing section. The main casing section includes a bottom plate having a keyboard section placed thereon, a keyslip portion extending upward from the b... | 12/06/2005 |
| 6888053 | Electronic keyboard musical instrument Casing of an electronic keyboard musical instrument includes two discrete parts: a main casing section; and a rear casing section. The main casing section includes a bottom plate having a keyboard section placed thereon, a keyslip portion extending upward from the b... | 05/03/2005 |
| 6720489 | Piano muter A muter configured to be placed beneath the soundboard of a piano (in the case of a grand piano) in order to attenuate the downward transmission of sound. The muter employs blocks of acoustic foam, shaped to frictionally engage the structural elements of the piano i... | 04/13/2004 |
| 6670532 | Legs formed from laminated woody board and keyboard musical instrument using the same A keyboard musical instrument such as a piano has legs for supporting a piano case on a floor, a pair of glued laminated woody members like an L-letter, a pair of decorative plates and a caster are assembled into the leg, and the pair of glued laminated w... | 12/30/2003 |
| 6281419 | Method of mounting plate in grand piano A method of mounting a plate in a grand piano is provided for ensuring an appropriate bridge pressure in accordance with an actual amount of swelling of a soundboard and its distribution in a simple manner without requiring bridge pressure setting and re-... | 08/28/2001 |
| 4594932 | Piano plate mounting structure for upright piano In construction of a piano plate for an upright piano, connectors partly embedded in one body therewith serve for direct mounting of the keyboard assembly, the side boards and the action assemblies so that three closely related elements of the upright pia... | 06/17/1986 |
| 4593594 | Housing for upright pianos In the construction of a housing for upright pianos, as a substitute for the conventional hard, thick and heavy wooden boards associated with back posts vulnerable to circumstantial changes, soft, thin and light wooden boards are attached to a metallic sk... | 06/10/1986 |
