Patent · US Expired

Continuous drier for plywood sheets

US4494315A · kind A · utility

6Cited by

4References

6Claims

0Family size

Assignee

Babcock BSH Aktiengesellschaft Vormals Buttner-Schilde-Haas AG · DE

Inventors

Friedrich Roos · Bad Hersfeld, DE
Friedrich Bahner · Lengede, DE

Key dates

Filing date	May 10, 1982
Grant date	Jan 22, 1985
Priority date	—
Expiry date	May 10, 2002

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF26B13/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A continuous drier for plywood sheets is provided at its inlet end with a nsing device measuring the width and the spacing of the plywood sheets entering the drier. The values measured by the sensing device are transmitted to a control device, which by means of a calculator regulates the speed of a conveyor transporting the plywood sheets through consecutive sections of the drier in such a manner that the plywood sheets follow each other closely on the conveyor without overlapping. Each of the sections is provided with a heater and a ventilator which blows air over the heater, and the hot air is directed by installations onto the plywood sheets. In order to compensate the effect of the varying speed of the conveyor with respect to the drying of the plywood sheets, the control device preferably controls also the volume of the streams of hot air by varying the speed of the ventilators. This will result in a considerable saving of the driving energy.

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