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:
Nov. 06, 1990
Filed:
Mar. 29, 1989
Warren P Faeth, Fort Wayne, IN (US);
Tokheim Corporation, Fort Wayne, IN (US);
Abstract
A device for mounting in a fuel dispensing hose that has a flexible inner tube defining the fuel conduit, and a tubular outer sleeve that defines with the inner tube an annular vapor return passage. The device includes a venturi section adapted for serial connection with the inner tube within the outer sleeve. The section comprises a cylndrical block that connects at each end with an end of the inner tube and defines a venturi forming part of the fuel conduit. The block also has an aspirator means that defines at least two radial ports communicating between the venturi throat and the annular vapor passage. Each radial port has a check valve to block fuel flow from the fuel conduit to the vapor passage.