Patent · US Expired

Tubular belt conveyor

US4809844A · kind A · utility

9Cited by
13References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 25, 1987
Grant dateMar 7, 1989
Priority date
Expiry dateNov 25, 2007

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65G2201/04
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A tubular belt conveyor can transport powdered or granular material without leakage. To roll up a flat belt into a tubular shape, a belt guiding device is provided in the vicinity of a front or a rear end roller. The belt guiding device comprises a base plate and a plurality of guide frames provided on the base plate. In the guide frame, a plurality of guide rollers are arranged like a circle through which the belt to be rolled up passes. The diameter of the circle formed by the guide rollers increases gradually towards the front or the rear end roller to prevent the belt from slacking so that smooth running may be assured.

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