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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.:

US 4792296 B1

PDFFull Text
Date of Patent:
Dec. 20, 1988

Filed:

Oct. 20, 1987

Scroll compressor with pressure-equalizing passage and gas vent conduit

Applicant:
Inventors:

Norihide Kobayashi, Wakayama, JP;

Tadashi Kimura, Wakayama, JP;

Tsutomu Inaba, Wakayama, JP;

Masahiro Sugihara, Wakayama, JP;

Assignee:

Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;

Attorney:

Oblon, Fisher, Spivak, McClelland, & Maier

Primary Examiner:

John J Vrablik

Int. Cl.
CPC ...
F04C / ; F04C / ;
U.S. Cl.
CPC ...
418 55 ; 418 88 ; 418 94 ; 184-623 ;
Abstract

A scroll compressor is provided with a main shaft to drive an orbiting scroll whereby fluid in a compression chamber which is formed by combining a stationary scroll with the orbiting scroll is compressed and then is discharged from the scroll compressor. To prevent a refrigerant gas in an eccetric recess formed in the main shaft from mixing with a lubricating oil, a conduit is formed in the main shaft to communicate the eccentric recess with a space between the lower part of the orbiting scroll and the upper part of the main shaft.

Find Patent Forward Citations

Kobayashi, Norihide. (1988). Scroll compressor with pressure-equalizing passage and gas vent conduit (U.S. Patent No. 4792296). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4792296

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