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:
May. 03, 1977
Filed:
Dec. 01, 1975
Applicant:
Inventors:
Assignee:
Stal-Refrigeration AB, Norrkoping, SW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C / ; F04C / ;
U.S. Cl.
CPC ...
418183 ; 418236 ;
Abstract
To allow a large built-in volume ratio of a vane type compressor, the outer circumferential surface of the rotor is provided in each working chamber with an indentation located next to the leading one of the two vanes partly defining the chamber, thereby increasing the through-flow area of the outlet space of the chamber through which it communicates with the stator's outlet port during the exhaust of compressed gas from the chamber.