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:
Apr. 04, 2006
Filed:
May. 30, 2001
Kazuhito Noguchi, Kanagawa, JP;
Akihiko Kubota, Kanagawa, JP;
Masahiko Osaka, Kanagawa, JP;
Manabu Motegi, Saitama, JP;
Hidetoshi Nishihara, Kanagawa, JP;
Kazuhito Noguchi, Kanagawa, JP;
Akihiko Kubota, Kanagawa, JP;
Masahiko Osaka, Kanagawa, JP;
Manabu Motegi, Saitama, JP;
Hidetoshi Nishihara, Kanagawa, JP;
Matsushita Refrigeration Company, Shiga, JP;
Abstract
A sealed electric compressor for use in, for example, an electric refrigerator, generates a little noise and can feed any moving part of its compressing element with refrigerator lubricant. An oil pickup tube is joined by insertion to the lowermost end of a crank shaft and includes a first centrifugal pumping portion and a second centrifugal pumping portion provided continuously and arranged at a smaller angle than that of the first centrifugal pumping portion. The second centrifugal pumping portion arranged at a smaller angle can spin in a pool of the refrigerator lubricant.