Patent · US Expired

Fixed message carrier

US4193685A · kind A · utility

4Cited by
11References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 30, 1979
Grant dateMar 18, 1980
Priority date
Expiry dateMar 30, 1999

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B27/625
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Apparatus for selectively, typically repetitively, moving a fixed message document to and from a photographing position on a document camera system. Logic control means on a fixed messsage carrier apparatus coact with system-operating means and transport means of the camera system to control the to and from movement. Any selected fixed message document can be handled. It is removably stored between flexible belts and cylindrical means that are in peripheral contact, and is unwound therefrom to the photographing position, and vice versa.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.