Joseph J Mcandrews, Age 571067 Bradford Dr, Williamstown, NJ 08094

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Joseph Mcandrews

Joseph Mcandrews

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Us Patents

Low Float Technology Battery

US Patent:

4931367, Jun 5, 1990

Filed:

Oct 28, 1988

Appl. No.:

7/264218

Inventors:

William B. Brecht - Hatfield PA
David O. Feder - Madison NJ
Joseph M. McAndrews - Freeport NY
Allan J. Williamson - King of Prussia PA

Assignee:

C & D Charter Power Systems, Inc. - Plymouth Meeting PA

International Classification:

H01M 1044

US Classification:

429 50

Abstract:

In a device for providing stand-by power to an electrical apparatus, such as a telephone switching system, the battery contained therein is maintained at a positive plate polarization of about 20 to 40 millivolts per cell.

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