Electricity: electrical systems and devices – Safety and protection of systems and devices – Transformer protection
Reexamination Certificate
2008-01-08
2008-01-08
Mai, Anh (Department: 2832)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Transformer protection
C361S038000, C336S058000
Reexamination Certificate
active
11473339
ABSTRACT:
A device for preventing the explosion of an electric transformer equipped with a tank filled with combustible coolant fluid, includes a pressure relief element to decompress the tank, a reservoir arranged downstream of the pressure relief element and at least one stopper valve on the reservoir such that the reservoir is hermetic in order to collect a fluid that passes through the pressure relief element.
REFERENCES:
patent: 4117525 (1978-09-01), Moore
patent: 5415033 (1995-05-01), Maresca et al.
patent: 5534853 (1996-07-01), Pioch
patent: 5781976 (1998-07-01), Stuhlbacher et al.
patent: 5946171 (1999-08-01), Magnier
patent: 6804092 (2004-10-01), Magnier
patent: 7155347 (2006-12-01), Going et al.
patent: 2003/0086218 (2003-05-01), Folliot et al.
patent: 2624882 (1977-12-01), None
patent: 0238475 (1987-09-01), None
patent: 1355777 (1963-02-01), None
patent: 57007909 (1982-01-01), None
patent: 01-248603 (1989-10-01), None
patent: 05029155 (1993-02-01), None
patent: 2006-295017 (2006-10-01), None
patent: 94/28566 (1994-12-01), None
Co-Pending U.S. Appl. No. 11/701,968, entitled “Device for Preventing the Explosion of an Element of an Electrical Transformer” filed Feb. 2, 2007; available in PAIR.
PCT Search Report and Written Opinion for International application No. PCT/FR2006/002421 mailed Jul. 3, 2007, 11 pages.
French Search Report for FR 0506661 mailed Feb. 17, 2006.
JAGOB “The ELPYR-Fire Fighting System for Oil Immersed Transformers” OZE (1988) 41(11), 388.
Elektromotorenwerk Barleben Brochure, Figures.
ELIN Stufenschalter fur Transformatoren, Techincal Reference, see Figures.
ELIN ELPYR System-E, Brouchure.
Widenhorn et al. “Minimised Outage Time of Power Plant Units After Step Up Transformer Failure” Proceedings of Power Gen '94-Asia (1994) vol. II, p. 23-25.
Merlin Gerin “HV Three Phase SF6 Gas Insulated Switchgear”.
Schaltanlagen, ABB Schaltanlagen GmbH.
Mai Anh
Meyertons Eric B.
Meyertons Hood Kivlin Kowert & Goetzel P.C.
LandOfFree
Electric transformer explosion prevention device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric transformer explosion prevention device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric transformer explosion prevention device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3904141