Additive for dielectric fluid

Compositions – Fluent dielectric

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C252S571000, C252S572000, C252S573000

Reexamination Certificate

active

07815821

ABSTRACT:
A dielectric fluid comprising hydrocarbon liquid admixed with an ester-based compound, wherein the ester-based compound is present in an effective amount to impart breakdown inhibiting properties to a paper insulation material when the dielectric fluid is in contact with the paper material.

REFERENCES:
patent: 1989046 (1935-01-01), Robinson
patent: 2688569 (1954-09-01), Malone et al.
patent: 2825651 (1958-03-01), Loo et al.
patent: 4204181 (1980-05-01), Smith et al.
patent: 4384972 (1983-05-01), Nakamura et al.
patent: 4429345 (1984-01-01), Vincent
patent: 6037537 (2000-03-01), McShane et al.
patent: 6154357 (2000-11-01), Berger
patent: 6177031 (2001-01-01), Minnick et al.
patent: 6312623 (2001-11-01), Oommen et al.
patent: 6398986 (2002-06-01), McShane et al.
patent: 6613250 (2003-09-01), McShane et al.
Notification of Transmittal of the International Search Report and the Written Opinion, dated Oct. 5, 2005, International Application No. PCT/US04/32376.
International Preliminary Report on Patentability for corresponding International Application No. PCT/US04/32376, dated Feb. 9, 2006.
McShane et al., “Aging of Paper Insulation in Natural Ester Dielectric Fluid,” IEEE/PES T&D Conf. Oct. 2001, No. 0-7803-7287-5/01.
ASTM D 828, entitled “Standard Test Method for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation Apparatus,” Annual Book of ASTM Standards, American Society for Testing and Materials.
ASTM D4243, entitled Standard Test Method for Measurement of Average Viscometric Degree of Polymerization of New and Aged Electrical Papers and Boards, Annual Book of ASTM Standards, American Society for Testing and Materials.
ASTM D3277, entitled “Standard Test Method for Moisture of Oil Impregnated Cellulosic Insulation,” Annual Book of ASTM Standards, American Society for Testing and Materials.
ASTM D3612 (Method C), entitled “Standard Test Mehtod for Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography,” Annual Book of ASTM Standards, American Society for Testing and Materials.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Additive for dielectric fluid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Additive for dielectric fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Additive for dielectric fluid will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4158090

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.