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. 29, 2003
Filed:
Apr. 02, 2002
Applicant:
Inventors:
Paul Patrick McCabe, Binghamton, NY (US);
Dean Harvey, Courtland, NY (US);
Daniel Robert Driscall, Greene, NY (US);
Augustus R. Baldini, Binghamton, NY (US);
Assignee:
The Raymond Corporation, Greene, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/7416 ;
U.S. Cl.
CPC ...
G01N 2/7416 ;
Abstract
A state-of-charge indicator system monitors the battery current and voltage during operation of a lift truck. Selected current and voltage samples are used to calculate the internal battery resistance and this is employed to calculate a “dynamic” battery voltage. This dynamic battery voltage is used as input to a stored look-up table which provides a battery state-of-charge value.