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:
May. 08, 1979
Filed:
Nov. 25, 1977
Applicant:
Inventor:
Elmer M Deters, Muscatine, IA (US);
Assignee:
Wylain, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
1374934 ; 141 59 ;
Abstract
A liquid dispensing and vapor recovery system in which an underground storage tank applies gasoline to a dispenser located at a filling station or the like for dispensing the gasoline to a vehicle gasoline tank, under the force of a pump located in the storage tank. A vapor return line is provided for passing vapors in the vehicle tank through the dispenser and back to the storage tank. A valve assembly is utilized to permit the flow of vapor from the vehicle tank to the storage tank and to prevent the flow of vapor from the storage tank to the vehicle tank in the absence of a predetermined relatively high pressure.