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. 28, 2002
Filed:
Jan. 25, 2000
Applicant:
Inventors:
Holger M. Korb, Harthausen, DE;
Rafal Krupa, Bartlett, IL (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 9/18 ; G01F 2/302 ;
U.S. Cl.
CPC ...
G01N 9/18 ; G01F 2/302 ;
Abstract
The battery charge indicator cage is molded as a single integral piece with two cores coming in and shutting off against each other. The battery charge indicator cage includes an internal diagonal channel in which a colored ball or balls traverse dependent upon the presence of a fluid of at least a predetermined density. A stem is formed within the diagonal channel in order to form the one-ball embodiment. This stem is removed in order to form the two-ball embodiment.