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.:

US 8018347 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 13, 2011

Filed:

May. 05, 2009
Applicants:

Payman Tehrani, Norrköping, SE;

Mats Robertsson, Stockholm, SE;

David Nilsson, Vikingstad, SE;

Oscar Larsson, Norrköping, SE;

Nathaniel D. Robinson, Kolmården, SE;

Rune Groppfeldt, Linköping, SE;

Inventors:

Payman Tehrani, Norrköping, SE;

Mats Robertsson, Stockholm, SE;

David Nilsson, Vikingstad, SE;

Oscar Larsson, Norrköping, SE;

Nathaniel D. Robinson, Kolmården, SE;

Rune Groppfeldt, Linköping, SE;

Assignee:

Acreo AB, Kista, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 17/00 (2006.01); G09G 3/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A device for integrating and indicating a parameter over, comprising: a first electrode (), a second electrode (), an electrolyte (), which is in contact with the first electrode and in consuming contact with a consumption portion () of the second electrode, at least two indicators (I, I, I), which are connected to the consumption portion () at a respective connecting point (P, P, P). The electrolyte () and the consumption portion () are selected such that when a voltage is applied over the electrodes (), the consumption portion () is consumed at a predetermined rate, wherein the indicators (I, I, I) are arranged to switch states in response to a consumption frontier (F, F) of the consumption portion reaching or passing a connecting point (P, P, P) associated with the respective indicator (I, I, I), wherein at least one of the indicators is a binary (on/off) indicator.


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