Chart sequencing device
US4467542A · kind A · utility
Inventor
Key dates
| Filing date | Nov 15, 1979 |
| Grant date | Aug 28, 1984 |
| Priority date | — |
| Expiry date | Nov 15, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F15/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for sequentially exhibiting the individual charts in a stack of charts, each of the charts having a plurality of spaced notches along the lower edge thereof, the notches on consecutive charts being misaligned, comprising a display area having a lower shelf on which the stack of charts rest, the shelf being sloped forwardly and downwardly to direct the charts to and off the front edge thereof, a sliding comb assembly positioned adjacent the shelf, the comb assembly including a plurality of spaced teeth, the spacing between the teeth being the same as the spacing between the chart notches, the teeth extending upwardly and inwardly adjacent and along the front edge of the shelf to block movement of the charts off of the shelf except when the notches on a chart are aligned with the teeth, the comb assembly being slideable laterally relative to the shelf to align the teeth thereof with consecutive charts to deliver consecutive charts from the display area, and a spent chart magazine positioned to catch the charts delivered from the display area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.