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, 1979
Filed:
Mar. 30, 1978
Applicant:
Inventors:
William G Thelen, Onondaga, MI (US);
Thomas W Bein, Annapolis, MD (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01C / ; F01C / ; F04C / ; F04C / ;
U.S. Cl.
CPC ...
418 19 ; 418 55 ; 418 57 ;
Abstract
A positive displacement pumping action is obtained from two meshed scroll ne impellers by mounting the two impellers on parallel but offset drive shafts and rotating them synchronously in the same direction.