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:
Feb. 04, 2014
Filed:
Jul. 15, 2011
Edward Herbert, Canton, CT (US);
Edward Herbert, Canton, CT (US);
Other;
Abstract
It is known to insulate bus bars to reduce shock and arc-flash hazards. However, failed or damaged insulation may not be noticed, possibly presenting a greater hazard as it is unexpected and therefore not prepared for. A metal cladding at earth ground enhances the safety to personnel and reduces the likelihood of a more serious line to line arc-flash. Still better is the use of a guard conductor intermediate between the hot conductor and the earth ground insulated from both. Not only does it introduce an additional layer of insulation, it also provides a way to continuously monitor the integrity of the insulation. A resistor divider establishes the nominal voltage on the guard conductor. A departure from nominal voltage indicates a potential fault. The guard conductor can also be used as a node for connecting other sensors, or one of the insulation layers may be of thermally sensitive polymer, to detect hot spots.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile