The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 1984
Filed:
Apr. 15, 1982
Sigmund Anhegger, Renningen, DE;
Dr. Ing. h.c.F. Porsche A.G., Stuttgart, DE;
Abstract
In the interior of a fuel tank, a device is provided for its ventilation, comprising ventilation pipes, which run in a transverse direction relative to the vehicle in which the tank is mounted, and whose intake ports are disposed adjacent to opposite, vertical boundary walls of the fuel tank. In order for the ventilation device to be simple to produce, have a low overall height and function good, the ventilation pipes have different diameters. A first ventilation pipe has forked pipe sections, one of which is surrounded by a second ventilation pipe of a larger diameter in such a way that their intake ports are provided at the free ends of the ventilation pipes that are disposed near opposite lateral boundary walls of the fuel tank.