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:
Mar. 17, 1987
Filed:
Feb. 07, 1985
Applicant:
Inventors:
Michael D Barber, Covington, GA (US);
William G Kipp, Conyers, GA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73440 ;
Abstract
A hydrometer unit permanently connected in an engine coolant line enables an immediate visual check on the adequacy of the anti-freeze constituent, such as ethylene glycol, in the system. The hydrometer includes a coolant receiving chamber having a transparent viewing portion and a number of variously colored float elements within the chamber provide an accurate indication of anti-freeze strength based on specific gravity. No manipulation of the hydrometer is required to enable a checking of the strength or weakness of the anti-freeze.