Source: http://www.google.com/patents/US6198251?dq=6,240,376
Timestamp: 2015-04-27 08:04:30
Document Index: 444888335

Matched Legal Cases: ['arts 101', 'arts 101', 'arts 101', 'arts 101', 'arts 101', 'arts 104', 'arts 101', 'arts 101', 'arts 103', 'arts 103']

Patent US6198251 - Method for sequentially charging batteries in situ - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA plurality of batteries located in battery-operated devices by a charger through a distributor where there is no communication between the distributor and the batteries in the battery operated devices are charged in automated sequence in situ by a charger through a distributor where there is no communication...http://www.google.com/patents/US6198251?utm_source=gb-gplus-sharePatent US6198251 - Method for sequentially charging batteries in situAdvanced Patent SearchPublication numberUS6198251 B1Publication typeGrantApplication numberUS 09/131,428Publication dateMar 6, 2001Filing dateAug 10, 1998Priority dateJun 3, 1997Fee statusLapsedAlso published asWO2000010239A1Publication number09131428, 131428, US 6198251 B1, US 6198251B1, US-B1-6198251, US6198251 B1, US6198251B1InventorsFrank L. LandonOriginal AssigneeFluor CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (11), Referenced by (18), Classifications (15), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetMethod for sequentially charging batteries in situ
Battery chargers generally fall into two categories�(1) direct current (D.C.) chargers and (2) pulsed current chargers.
In pulsed battery chargers, the charging current is turned on and off periodically, thus allowing the gasses sufficient time to recombine into the electrolyte solution. A further improvement can be achieved by utilizing the period of recombination to apply short discharge pulses to the battery to �clean-up� the newly plated material, thereby eliminating contaminants and nodules in the plated matrix. This technique was originally developed and patented by G. W. Jernstedt (assigned to Westinghouse Electric) between 1948 and 1954, and adapted to battery chargers by W. B. Burkett and others (assigned to Christie Electric Corp) around 1971.
In FIG. 2, six golf carts 101-106 are connected to a single charger 110 through cables 161-166 in a �line� configuration. The charger 110 includes components having the functions of the rectifier 30, duty cycle modulator 40 and distributor 50 described above, and is connected to a power outlet 120 via power cord 125. Of course, as with the other figures, a greater or lesser number of golf carts or other battery operated devices could be connected to the charger in a similar manner. For example the number of golf carts sequentially charged by a single charger as disclosed herein could be three, five, seven or ten.
In FIG. 3, the six golf carts 101-106 are connected to charger 110 through cables 161-166 in a �circle� configuration. In FIG. 4, the six golf carts 101-106 are connected to charger 110 through cables 161A-166A in an �H� configuration. Here, carts 101-103 (technically the batteries in carts 101-103) are all charged together (in parallel as a first group, and carts 104-1063 are all charged together (in parallel) as a second group. In FIG. 5, the six golf carts 101-106 are connected to charger 110 through cables 161B-166B in a �modified line� configuration, such that carts 101-102 are charged together (in parallel) as a first group, carts 103-104 are charged together (in parallel) as a second group, and while carts 103-104 are charged together (in parallel) as a second group.
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