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:
May. 16, 1989
Filed:
Feb. 29, 1988
Applicant:
Inventors:
Kenneth J Muderlak, Shorewood, WI (US);
Patrick D Maloney, Madison, WI (US);
Assignee:
Scentex, Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
261 26 ; 239 35 ; 239 57 ; 250215 ; 261 30 ; 261 96 ; 261D / ; 261D / ; 315159 ; 422124 ;
Abstract
An improved odor control device including a source of deodorizing olfactory stimuli, a squirrel cage fan for circulating air carrying the stimuli, an electronic circuit providing a visual indicia relating to the status of the power source. A secondary circuit controls indicia means for indicating the elapse of a predetermined span of time from initilization of control of one such span of time for the purpose of alerting the user to examine and/or replace the olfactory stimuli.