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:
Dec. 11, 2001
Filed:
Apr. 07, 2000
Applicant:
Inventors:
Takayuki Kishi, Tokyo, JP;
Toshio Nishio, Tokyo, JP;
Assignee:
Mayekawa Mfg., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 1/816 ;
U.S. Cl.
CPC ...
F04C 1/816 ;
Abstract
A screw-compressor of which the full-load capacity can be adjusted without changing the shape, number of components and basic dimensions of the compressor, wherein the outer circumferential area of teeth above the pitch circle of the intake side end of the male rotor is eliminated stepwise to a prescribed angle of rotation to form an airflow rate reducing section and a bypass leading to the intake port is provided.