Rotary device for storing and accessing correlated information
US5421617A · kind A · utility
0Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 3, 1993 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Mar 3, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D15/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A cylindrical drum has correlated information stored thereon in circumferentially extending longitudinally spaced rows. The drum is rotatably disposed within an open cylinder and the cylinder has windows longitudinally spaced therealong so as to correspond to the longitudinal spacing of the rows. The drum is attached to knobs which are integral with end caps for closing the cylinder, and when the drum is rotated via the knobs the information on the drum is accessed and is visible through the windows in the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.