Non-return valve for fuel tank

US6575190B1 · kind B1 · utility

Assignee

• COMPAGNIE PLASTIC OMNIUM SE · FR

Inventors

• Alexis Rosseel · Compiègne, FR
• Patrice Baudoux · Tergnier, FR

Key dates

• Filing date: May 3, 2000
• Grant date: Jun 10, 2003
• Expiry date: May 3, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86372
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A non-return valve for a fuel tank, the valve comprising a substantially tubular body and a deformable shutter member fixed to said body, said shutter member being formed integrally by molding a plastics material and being shaped in such a manner as to return under its own elasticity into a shut position, with the valve body serving as a seat, whenever the shutter member is at rest and the pressure of fuel is no longer sufficient to overcome the elastic return action of the shutter member.