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US Patent 7531488 Lubricating oil for refrigerator with compressor

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Patent Inventor Names
Hiroshi Nagakawa0
Masato Kaneko0
Nobuaki Shimizu0
Yasuhiro Kawaguchi0
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Patent abstract

Disclosed is a lubricating oil for compression-type refrigerator comprising, as a main component, a polyoxyalkyleneglycol derivative represented by the general formula:R1[(OR2)mOR3]nwherein symbols are as defined in the specification. Said lubricating oil has a favorable compatibility with refrigerants and an excellent lubricating property, and is utilized as the lubricating oil for compression-type refrigerator employing hydrogen-containing fluorocarbon compound refrigerants including R-134a or fluorocarbon compound refrigerants without hydrogen.

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US Patent 07531488 Lubricating oil for refrigerator with compressor US Patent 7531488 Lubricating oil for refrigerator with compressor

Infobox
Patent Number
075314880
Patent Number
75314880
Edits on 22 May, 2023
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edited on 22 May, 2023
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=075314880
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edited on 5 Apr, 2023
Infobox
Is a
Patent
Patent
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
075314880
Date of Patent
May 12, 2009
0
Patent Application Number
099395990
Date Filed
August 28, 2001
0
Official Website
https://pdfpiw.uspto.gov/.piw?Docid=075314880
Patent Primary Examiner
‌
Ellen M McAvoy
0
Edits on 15 Jun, 2022
"Entity importer update"
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edited on 15 Jun, 2022
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Website URL
https://pdfpiw.uspto.gov/.piw?Docid=07531488
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created this topic on 2 Dec, 2021
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 US Patent 07531488 Lubricating oil for refrigerator with compressor

Infobox
Is a
Patent
Patent
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
07531488
Date of patent
May 12, 2009
Patent application number
09939599
Date Filed
August 28, 2001
Patent primary examiner
‌
Ellen M McAvoy

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