Electrical panel access and control apparatus including true...

Details Electrical panel access and control apparatus including true... Electrical panel access and control apparatus including true...

2002-03-19

2008-03-04

Hartman, Jr., Ronald (Department: 2121)

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Sequential or selective

C070S079000, C070S083000

Reexamination Certificate

active

07340311

ABSTRACT:
An improved electrical panel design provides a modular, power-reliable, buss-lockout and true emergency-stop capabilities. Through the use of an interface, the approach eliminates numerous outdated, if not antiquated, parts, including safety locks, mechanical disconnect switches, E-stop safety relays, and safety Programmable controllers. The modular panel design saves interior panel space, permitting the use of single-door access, in some cases. Panel doors cannot be opened with live electricity without some form of electronic authorization, and a record of access is stored for future reference. Power may not then be reactivated with the doors opened, thereby virtually eliminating disconnect related accidents. Automatic shut down further occurs with a plant network emergency, ground-fault interruption, or panel door violation. Other benefits of the approach include the capability of local programming through an RS-232 or other plant network, visual (color) display of system status and diagnostic display in conjunction with card/code lock-out access. The invention may be deployed in any number of environments, including a wide variety of industrial applications, such as factory lines, loading docks, and so forth.

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ElectroGuard™ Safety Isolation System, Bulletin 2030. Jan. 20, 2004, 33 pgs., Allen-Brady.

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