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:
Nov. 18, 1997
Filed:
Apr. 21, 1995
Christopher J Ludewig, Northfield, MN (US);
E.F. Johnson Company, Burnsville, MN (US);
Abstract
A battery charger designed for use with a portable battery powered device. The battery charger has a housing and two battery charger ports defined therein, each of the battery charger ports have a first open end at the surface of the housing and a second closed end. The battery charger ports include at least two sets of spaced apart battery engaging electrodes disposed therein. The second closed end of the first charging port has a stepped configuration that defines a first step adapted to receive and hold a first selected battery in electrical contact with a first set of electrodes and a second step adapted to receive and hold a second selected battery in electrical contact with a second set of electrodes. The second closed end of the second charging port has a stepped configuration that defines a first step adapted to receive and hold a first selected battery having a battery powered device mated thereto in electrical contact with a first set of electrodes and a second step adapted to receive and hold a second selected battery having the battery powered device mated thereto in electrical contact with a second set of electrodes.