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, 1986
Filed:
Mar. 20, 1984
Edmund G Sweet, Burlington, CA;
Ontario Research Foundation, Mississauga, CA;
Abstract
A density meter includes a main body having a vertically elongated chamber to contain a test fluid. A passageway in the main body connects to the chamber near its bottom end. The passageway spans at least a bottom portion of the chamber and leads to the exterior of the main body. The chamber has in its lower end a liquid which is immiscible with and denser than the test fluid, the liquid also occupying at least part of the passageway. Access means are provided for admitting the test fluid to the chamber and evacuating it therefrom. Measuring means are provided for determining the location of the top surface of the liquid. The measuring means to determine the location of the liquid top is preferably ultrasonic.