Patent · US Expired

Elongated fuel and vapor tube having multiple layers and method of making the same

US5566720A · kind A · utility

48Cited by
41References
29Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 10, 1995
Grant dateOct 22, 1996
Priority date
Expiry dateJan 10, 2015

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16L2011/047
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

An elongated fuel and vapor tube suitable for conveying fluids containing hydrocarbons having a first layer disposed radially innermost and having an inner surface capable of prolonged exposure to the hydrocarbon-containing fluid made up of a melt processible fluoroplastic terpolymer composed of a polyfluorinated alkylene, an .alpha.-fluoro-olefin and a fluorinated vinyl compound and a second layer bonded directly to the outwardly oriented face of the first layer. The second layer is composed of a resinous thermoplastic material which is preferably a polyamide such as Nylon 12, Nylon 11, Nylon 6 or Nylon 6.6.

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