Patent · US Expired

Paper sheet dryer

US4297794A · kind A · utility

15Cited by
9References
16Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 2, 1977
Grant dateNov 3, 1981
Priority date
Expiry dateAug 2, 1997

Classification

  • Technology area (CPC D)Textiles; Paper
  • CPC primaryD21F5/182
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A continuous sheet of paper fibers is fed to a rotatable drum, moved around the rotatable drum by the rotatable drum, and is fed from the rotatable drum at an area circumferentially spaced from the paper fiber feed-in area. The sheet is supported on the drum by a high percentage open area sheet support. The sheet support has channels for conducting hot gas from the inside of the drum against the inside surface of the sheet. The support also has means for conducting the hot gas along the inside surface of the sheet.

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