Patent · US Expired

Photographic apparatus of the self-developing type

US4131352A · kind A · utility

2Cited by

2References

8Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Gunter Fauth · Unterhaching, DE
Herbert Muller

Key dates

Filing date	May 27, 1977
Grant date	Dec 26, 1978
Priority date	—
Expiry date	May 27, 1997

Classification

Technology area (CPC G)Physics
CPC primaryG03B17/52
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An improved pressure roller in a photographic apparatus of the self-developing type is disclosed. The roller has a rigid core provided with two axially spaced circumferential grooves which are filled with resiliently compressible material. The core is jacketed with a resilient sheath which covers its circumferential surface, including the grooves and the material therein.

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