Device for altering the effective mass of a stringed instrument
US5889222A · kind A · utility
Inventor
Key dates
| Filing date | Dec 27, 1996 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Dec 27, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10D3/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A device for altering the effective mass of a stringed instrument employs a movable mass such as an adjustable calibrated weight affixed to an accessory or member on the body of the instrument. The adjustable weight is a known weight and in the form of a movable mass clamp that can be externally mounted on the endpin of a cello or bass. The adjustable weight can be a "C" shaped body or a split collar style body with either one employing a threaded fastener to hold the body on the endpin. A variation encompasses a mounted adjustable weight in the form of a clamp affixed to some portion of an instrument. The clamp has a flexible interface or pad between the clamp and the instrument. A series of varying weights can be selected to be applied to the clamp. Another variation employs the endbutton on a violin. The endbutton has an opening disposed therethrough with threads provided therein. From a series of pins having threads disposed thereon, a pin is selected and is threadably engaged with the endbutton to place a selected mass inside the body of the violin. A friction fit may be used in lieu of threads. The pins can be tapered with the head of each pin having either a recessed socket …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.