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:
Mar. 23, 1976
Filed:
Dec. 16, 1974
Applicant:
Inventor:
Hjalmar Schibbye, Saltsjo-Boo, SW;
Assignee:
Svenska Rotor Maskiner Aktiebolag, Nacka, SW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62 84 ; 418201 ; 62115 ; 62470 ; 62473 ; 62498 ;
Abstract
Vehicle air-conditioning and other refrigerator systems utilizing specified helical screw compressors and operated under specified conditions and using specified refrigerants and oils. Also disclosed are improved hydrocarbon compressor systems which also utilize specified helical screw compressors and are operated under specified conditions using specified oils selected in relation to the hydrocarbon being compressed.