Patent · US Expired

Film cassette

US4395107A · kind A · utility

14Cited by
7References
35Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 15, 1981
Grant dateJul 26, 1983
Priority date
Expiry dateMay 15, 2001

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B2217/265
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A film cassette for multi-exposure film strips has a body part with an inner compartment for a film strip and at least one opening for passage of the film strip therethrough between an initial position before exposure and a final position after exposure, and elements for preventing unintentional withdrawal of the film strip from the body part in at least one of these positions, the preventing elements arranged between the body part and the film strip. The preventing elements can be arranged so that they prevent unintentional withdrawal of the film strip in both positions. The preventing elements include a recess provided in one of the film strip and the body part, and a projection provided in the other of the film strip and the body part and engageable in the recess.

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