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:
Apr. 25, 1978
Filed:
Apr. 07, 1975
Fred S Watts, Jr, Denver, CO (US);
Lynn Loren Beecher, Arvada, CO (US);
Public Service Company of Colorado, Denver, CO (US);
Abstract
Signals for controlling any of a wide variety of field devices such as circuit breakers, generators, transformer connections and the like are produced from a common function module. The particular device or devices to be operated are selected on an exclusive basis by a control module dedicated for that purpose. The control module cooperates with the common function module to produce the desired control and/or monitoring of the associated field devices and prevents any other control module from operating when it is selected. Exclusive operation is effected by an interruptible serial connection of a power line between control modules. A multiplexing arrangement switches the pertinent measurement data associated with a selected operation into a display panel. The combined modules provide direct control of all field devices at a remote location but can also be controlled by a distant supervisory equipment. A common basic circuit configuration for the control modules permits tailoring the selected functions by relatively simple addition of circuit elements.