Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Reexamination Certificate
2008-04-22
2008-04-22
Duong, Frank (Department: 2616)
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
C370S503000, C307S064000
Reexamination Certificate
active
07362696
ABSTRACT:
An automatic transfer switch includes; a housing, at least one switch for switching electrical connection from a first external power source to a second external power source, and a first and at least a second timer disposed within the housing, wherein the first and the at least a second timer have a first and at least a second time delay, respectively. The at least one switch being responsive to the first and the at least a second timer, and the at least a second time delay being nested within the first time delay.
REFERENCES:
patent: 4189649 (1980-02-01), Przywozny et al.
patent: 4672227 (1987-06-01), Lagree et al.
patent: 5023469 (1991-06-01), Bassett et al.
patent: 5739594 (1998-04-01), Sheppard et al.
patent: 5903065 (1999-05-01), Dragos
patent: 6172432 (2001-01-01), Schnackenberg et al.
University of Washington Engineering Services Facility Design Information, Automatic Transfer Switch, pp. 1-11, Aug. 2002.
Zenith, Operation And Maintenance Manual Transfer Switch Control Panel MX200 Microprocessor Controller, p. 1-34, 1998.
Ferry Thomas
Kassel Edward
Cantor & Colburn LLP
Duong Frank
General Electric Company
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