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:
Feb. 07, 1984
Filed:
Dec. 30, 1981
Applicant:
Inventors:
Donald C Walker, Munster, IN (US);
Theodore O Wagner, St. Charles, IL (US);
Assignee:
Standard Oil Company (Indiana), Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B65B / ;
U.S. Cl.
CPC ...
141 59 ; 141302 ;
Abstract
A liquid dispensing nozzle suitable for use in automobile service stations having vacuum assist vapor recovery systems is disclosed. This nozzle incorporates a check valve for closing the vapor return conduit means at all times when liquid is not being dispensed and a liquid responsive means in the vapor return conduit means for automatically shutting off the dispensing of liquid in the event liquid is aspirated into the vapor return conduit means.