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The GoTo site for
Power System Professionals Involved in Lightning Protection |
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Patent and Application Reviews |
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ArresterWorks is available for in-depth arrester patent reviews for assessment
of content and clarification of technical specifications. Contact me at jwoodworth@arresterworks.com Patent
Fast Take 007 (Patent Application) Surge Arrester (with Optically Transparent Port) Inventor: Bernd Kruska (DE), Erhard Pippert (DE) Assignee: Siemens AG Application No.: US 2008-0291596 A1 Application Date November 27, 2008
Abstract: A surge arrester has a discharge current path. The discharge current path is surrounded by an insulating sleeve. The insulating sleeve has at least one area that is optically transparent. From the invention Summary, the
explanation continues. This optical port is to allow readout of a monitor mounted within the arrester. It also allows observers to physically examine the internal components for moisture or failure. Interpretation This invention solves a serious
shortcoming of arresters today. It is
difficult to ascertain if the arrester is in good working order, partially
failed or near failure when near the arrester. The difficulty can be overcome with
sophisticated and expensive equipment, but this invention is very simple and
very low cost with very positive Patent
Fast Take 006 Coupling of Communication Signals to a Power Line Inventor: Brent Zitting US, Charles Daley US Assignee: International Broadband Co. Inc
Patent No.: US
7,414,526 B2
Issue Date August 19, 2008
This invention is an altogether
unique application of an arrester for purposes other than lightning
protection. The inherent capacitance
of Metal Oxide Varistor is adequate for the coupling of a low voltage signal
to a high voltage power line. This
application is possible because the signal being coupled is above 1 MHz as
opposed to normal power line carrier frequencies in the kHz range. This device is part of the Broadband over
Power Line (BPL) industry that is growing in the use as a way to bring
internet services to customers by ways other than cable or satellite. Patent
Fast Take 005 (Application) Method of Manufacturing a Varistor Inventor: Oberg et al. (SE) Assignee: ABB Application Publish Date: June 12,
2008 Full
Application (pdf) US
20080129442 A1 Application
Review 005 (pdf)
The main object of
this invention is to produce a varistor with improved high-current capability
and energy absorption capability. In
this way the physical size of varistor may be reduced, as well as the size of
the apparatus of which it forms a part. This is accomplished by depositing a
thin layer of metal on the ground disk, and applying the standard aluminum
layer on top of the 5-30 micron thin layer.
There are several methods of deposition including magnetron
sputtering, ion beam sputtering, DC sputtering and radio frequency
sputtering. The micro thin layer can
also be achieved by using a chemical vapor deposition method. Tests demonstrated a significant
improvement in energy handling capability. Patent
Fast Take 004 (Application) Surge Arrester having a Discharge Element Inventor: Reinhard Goehler et al. Germany Assignee: Siemens AG Application Publish Date: June 26,
2008 Full
Application US 2008/0151460 A1
This is an invention
that uses a so called shield element that provides three enhancements to a
stack of MOV disks. The shield element
provides a longer creepage path on the periphery of the disks column, it
provides a means of conducting heat from the central section of the disk to
the circumference of the column, and it provides an electric field passivator
always present near the junctions of disks. Patent
Fast Take 003 Device for Monitoring the Leakage Current of a Surge
Arrester Inventor: Hiako Schillert et al. Germany Assignee: Siemens AG Issue Date: February 26, 2008 Full
Patent US
7,336,193 B2
This invention is for
a device that monitors the leakage current of a surge arrester using the
third harmonic of the leakage current.
In this design, no auxiliary power is required for the supply of the
components. The output of the device
is similar to a commonly understood traffic signal using red, yellow and
green. They mean stop using, warning, and go ahead and use. It is also designed for cost effective
manufacturing and cost effective use. Patent
Fast Take 002 Arrester
Disconnector Assembly Minimizing Explosive Separation Inventor: Dennis Lenk et al. Assignee: Hubbell Incorporated File Date: August 9, 2007 Application
US_2008-0068122 A1
Patent
Fast Take 001 Overvoltage Protection System, David Hughes, Cooper Industries File Date April 30,
2007 Application 11/742,013
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