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:
Jan. 25, 1977
Filed:
Jun. 23, 1975
Applicant:
Inventor:
Lauritz Benedictus Schibbye, Saltsjo-Duvnas, SW;
Assignee:
Svenska Rotor Maskiner Aktiebolag, Nacka, SW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C / ;
U.S. Cl.
CPC ...
418-1 ; 418201 ;
Abstract
Method for modifying a compressing apparatus comprising a prime mover and a screw compressor for a higher compression ratio and constant power by extending the inlet port so that the cut off from the inlet channel takes place at a later angular position of the rotors than the normal design position.