Patent · US Expired

Total immersion continuous loop apparatus and method

US4274731A · kind A · utility

1Cited by
3References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 18, 1979
Grant dateJun 23, 1981
Priority date
Expiry dateOct 18, 1999

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B27/10
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A closed container or tank containing a body of liquid within which is totally immersed an endless loop of flexible web material such as motion picture film, with said flexible web material wound in a multiple loop within the container, and provisions for an extended loop portion of said flexible web material to enter and exit the tank at the same rate of speed. The extended loop portion of said flexible web is designed to run through a second apparatus such as a motion picture printing machine in a continuous and uninterrupted path.

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