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:
Aug. 16, 1977
Filed:
Jun. 23, 1975
Applicant:
Inventors:
Hjalmar Schibbye, Saltsjo-Boo, SW;
Arnold Englund, Vallingby, SW;
Assignee:
Svenska Rotor Maskiner Aktiebolag, Nacka, SW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ; F01C / ;
U.S. Cl.
CPC ...
417310 ; 418201 ;
Abstract
Volume control valve for a screw compressor located in a cylindrical bore parallel to and spaced from the working space. The bore and the working space communicate through a number of axially distributed channels which are selectively closed by an adjustable valve member disposed in the bore.