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:
Jul. 20, 1993
Filed:
Sep. 30, 1992
Applicant:
Inventors:
Mark E Shiffler, Annapolis, MD (US);
Luke W Loy, Washington, DC (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24B / ; F01C / ;
U.S. Cl.
CPC ...
417 48 ; 418206 ;
Abstract
A high-pressure pump for electro-rheological fluids in which the pump coments operate with relatively large clearances and rely on the electro-rheological fluid effect for sealing. Preferably, the electro-rheological effect is induced in the fluid only in the region where a seal between relatively merging pump parts is required to generate a fluid pressure increase.