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:
Aug. 18, 1998
Filed:
Sep. 03, 1996
John A Zulaski, Mt. Prospect, IL (US);
S&C Electric Company, Chicago, IL (US);
Abstract
An arrangement is provided to power and initiate the output of information sensed and/or stored by a device in a sealed environment having a viewing window. The device is powered and the output is initiated by the input of a light source to the device. When the output is initiated, the device provides a display representing the information. In a specific arrangement, the device scrolls to display the information on a sequential, repetitive basis while the light source is directed onto the device. In one specific embodiment, the device is powered by a solar cell or the like. In one specific application of the invention, the information represents the real-time primary voltage of components and circuitry within the switchgear. In another specific application of the invention, the device is located within a sealed switchgear enclosure and the information represents the faulted phase or phases of the power distribution circuit to which the switchgear is connected. The information is obtained and stored in a non-volatile memory before the circuit is deenergized. Alternatively, a non-volatile storage arrangement is provided that can be sensed after the circuit is deenergized, e.g. mechanical or magnetic.