Patent · US Expired

Plastic extrusion-transport roller for photomechanical apparatus

US4718154A · kind A · utility

11Cited by
2References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 5, 1986
Grant dateJan 12, 1988
Priority date
Expiry dateAug 5, 2006

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03D3/13
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A transport roller made of plastics by extrusion and used for photomechanical apparatus for transporting film or X-ray cassettes or the like is formed as a sleeve having an internal recess, the surface of which is provided with a plurality of inwardly radially protruding ribs which ensure a stable and rigid structure of the roller without requiring a metallic core in the roller.

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