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:
Jun. 02, 2020
Filed:
Apr. 07, 2015
Applicant:
Preciflex SA, Neuchâtel, CH;
Inventors:
Lucien Vouillamoz, Feusisberg, CH;
Yves Ruffieux, St-Aubin, CH;
Assignee:
Preciflex SA, Nêuchatel, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G04G 9/00 (2006.01); G04B 19/00 (2006.01); G04B 39/02 (2006.01); G04B 1/26 (2006.01);
U.S. Cl.
CPC ...
G04B 19/00 (2013.01); G04B 1/26 (2013.01); G04B 39/02 (2013.01); G04G 9/00 (2013.01);
Abstract
An indication device is provided which has an electrically conductive fluid driven by an MHD pump. The fluid has an indicator surface driven adjacent indices of an indicator so as to indicate a quantity. A position of the indicator surface is sensed and controlled to ensure accurate indication of the quantity. Optionally, the quantity indicated is time.