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:
Jan. 03, 1995
Filed:
Jan. 18, 1994
Applicant:
Inventors:
Noriaki Kiyohiro, Kofu, JP;
Kazutoshi Ito, Aichi, JP;
Assignee:
CKD Corporation, Aichi, JP;
Primary Examiner:
Int. Cl.
CPC ...
F15C / ;
U.S. Cl.
CPC ...
137807 ; 137827 ; 92143 ; 91405 ;
Abstract
A control apparatus for an electroviscous fluid has a pair of electrodes between which the electroviscous fluid is disposed and a control device for applying nearly-trapezoidal shaped pulses positive and negative voltages alternately across the electrodes to control viscosity of the electroviscous fluid. The control apparatus changes gradually a voltage value when switching between the positive voltage and the negative voltage.