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:
Sep. 01, 1998
Filed:
Jun. 11, 1996
Applicant:
Inventors:
Dietrich Pirck, Seevetal, DE;
Hans-Dieter Grasshoff, Hamburg, DE;
Harald Kohnz, Oberhausen, DE;
Peter Finmans, Duisburg, DE;
Tobias Carstensen, Wufrath, DE;
Dieter Jakubik, Mulheim a.d. Ruhr, DE;
Wilfried Weber, Bruhl-Schwadorf, DE;
Dieter Winkler, Mulheim bei Blankenheim, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 76 ; 252 73 ; 252579 ; 508506 ; 508539 ;
Abstract
Homogeneous, electro-viscous fluids are provided which contain aluminum soaps based on products obtained by reacting one or more mono- or polycarboxylic acid(s) or the anhydrides or semi-esters thereof with reactive aluminum compounds, such as aluminum alcoholates. The aforesaid fluids manifest high electro-rheological effect and are completely homogeneous, and do not require a dispersant.