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. 22, 1980
Filed:
Nov. 07, 1977
Applicant:
Inventor:
Donald A Lasater, Fairfield, OH (US);
Assignee:
Dover Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B / ;
U.S. Cl.
CPC ...
141 52 ; 141 59 ;
Abstract
A liquid dispensing nozzle has a spout formed of inner and outer concentric cylindrical tubes. Liquid is dispensed from the nozzle through the inner tube to a tank to be filled. Vapors within the tank are returned through an annular passage, which is between the inner and outer tubes, to vapor recovery means by a vacuum pump. The vacuum pump exerts a sufficient suction to pull not only the vapors within the tank but also some air from the atmosphere through the fill pipe in which the spout is inserted so as to insure that no vapor escapes to the atmosphere.