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.

Date of Patent:
Feb. 22, 2011

Filed:

Jun. 12, 2008
Applicants:

Gene Sipinski, Elgin, IL (US);

Thomas P. Blandino, Cottage Grove, WI (US);

Inventors:

Gene Sipinski, Elgin, IL (US);

Thomas P. Blandino, Cottage Grove, WI (US);

Assignee:

S.C. Johnson & Son, Inc., Racine, WI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01); G01J 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A dispensing device includes a dispenser configured to dispense a volatile material, a sensor configured to detect an environmental condition, and a nonlinear circuit element coupled to the sensor to establish a bias point. A voltage level at the bias point varies nonlinearly with respect to a current that flows through the sensor, wherein the current that flows through the sensor represents the environmental condition. The dispensing device further includes a controller coupled to the bias point. The controller controls the dispenser to dispense the volatile material in response to the environmental condition.


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