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:
Nov. 25, 2008
Filed:
Jul. 14, 2006
Gene Sipinski, Elgin, IL (US);
Jeffrey L. Harwig, New Berlin, WI (US);
Murthy S. Munagavalasa, Racine, WI (US);
Gopal P. Ananth, Racine, WI (US);
Gene Sipinski, Elgin, IL (US);
Jeffrey L. Harwig, New Berlin, WI (US);
Murthy S. Munagavalasa, Racine, WI (US);
Gopal P. Ananth, Racine, WI (US);
S.C. Johnson & Son, Inc., Racine, WI (US);
Abstract
A diffusion device includes a housing having a battery disposed therein and adapted to receive a replaceable fluid reservoir for holding a fluid, wherein the fluid reservoir includes a wick for movement of the fluid to a discharge end thereof. The diffusion device further includes a piezoelectric element energized by a power source for vibrating a perforated orifice plate disposed adjacent the discharge end of the wick, wherein the piezoelectric element develops vibratory movement to pump the fluid from the discharge end through the perforated discharge plate and into the atmosphere. A control circuit and light emitting diode ('LED') are disposed in the housing, wherein the control circuit energizes the LED at a particular frequency when the dispenser is active and a voltage developed by the battery is above a threshold voltage.