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. 21, 2006
Filed:
Jun. 21, 2004
Arthur J. Heiser, Jr., Newport Beach, CA (US);
James F. Calvagna, Anaheim, CA (US);
Arthur J. Heiser, Jr., Newport Beach, CA (US);
James F. Calvagna, Anaheim, CA (US);
Duffield Marine, Inc., Newport Beach, CA (US);
Abstract
A battery capacity and usage system, applied to an electric powered boat. A battery monitor is controlled by a micro-controller which includes a non-volatile memory for storing a lookup table. The lookup table comprises a database of characteristics of various batteries, including a relationship between the capacity and the charged voltage, the driving current and remaining hours of usage. The load of the battery is measured by a hall effect device. By monitoring the current micro-controller calculates the remaining time of the battery is obtained from the lookup table and displays the results on a digital readout installed on dashboard of the electric powered boat.