发明名称 |
Phonograph record adapter |
摘要 |
A phonograph record adapter comprising a rigid ring adapted to receive a standard phonograph record therein, a flange extending inwardly of the ring, the interior diameter of the flange being less than the diameter of the record, the flange being adapted to engage and overlie a surface of the record and being further adapted to exert a force upon the record when the record is in playing position to substantially negate the effects of warpage in the record, and spring biasing means mounted on interior portions of the ring and engageable with the record to center the record.
|
申请公布号 |
US4148491(A) |
申请公布日期 |
1979.04.10 |
申请号 |
US19780867386 |
申请日期 |
1978.01.06 |
申请人 |
STARK, MARTIN F.;WHALEN, ROBERT L. |
发明人 |
STARK, MARTIN F.;WHALEN, ROBERT L. |
分类号 |
G11B17/028;(IPC1-7):G11B23/02 |
主分类号 |
G11B17/028 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|