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:
Sep. 08, 1987
Filed:
Aug. 12, 1985
Paul Sherer, Costa Mesa, CA (US);
Seacliff International, Inc., South El Monte, CA (US);
Abstract
Portable apparatus for charging a lead-acid battery from a direct current source such as a series of dry cells that can be conveniently carried in a motor vehicle or the like. An electronic circuit measures the actual current transferred to a battery undergoing charging and automatically signals when a preselected quantity of electric charge has been transferred to the battery undergoing charging. The electronic circuit means also signals that the battery undergoing charging has a preselected voltage level. The electronic circuit automatically signals that the direct current source has sufficient energy to charge a battery before a battery to be charged is connected thereto. The timing of the charge transfer is through the provision of charging and discharging a capacitor between preselected voltage levels by a current proportioned relative to the charging current and counting up a binary counter each time a preselected point in the oscillations are reached until a preselected count is reached.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile