Patent · US Expired

Flat pipe

US5887625A · kind A · utility

11Cited by
9References
17Claims
0Family size

Inventor

Key dates

Filing dateFeb 17, 1997
Grant dateMar 30, 1999
Priority date
Expiry dateFeb 17, 2017

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF28F2240/00
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

A flat pipe includes a hollow body having a pair of upper and lower walls extending substantially parallel to each other, and opposite lateral sides joined thereto, and a plurality of spacers closely fit between the upper and lower walls of the body and interconnected by a permeable sheet. The spacers are arranged at equal intervals to define a plurality of parallel fluid passages. The spacers are fused to opposite sides of the sheet in alternating relationship so that the sheet is inclined between adjacent spacers. The spacers are resistant to compression and deformation.

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