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. 26, 1980
Filed:
Dec. 05, 1977
Applicant:
Inventor:
William J Bauer, LaGrange, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F17D / ; F16K / ;
U.S. Cl.
CPC ...
137 15 ; 137433 ; 137398 ;
Abstract
Method and apparatus for automatically controlled conducting of liquid downward through a gravity-flow subatmospheric-pressure shaft over a wide range of flow rates by use of a movable float-operated inlet valve with variable upward force being applied to the movable valve assembly to compensate for the variable downward forces resulting from the development of a partial vacuum in the flow shaft.