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. 23, 2015
Filed:
May. 29, 2014
Filtersmarts, Inc., Huntsville, AL (US);
David J. Wilson, Jr., Huntsville, AL (US);
Douglas Morris, Madison County, AL (US);
Filtersmarts, Inc., Huntsville, AL (US);
Abstract
A clogged filter detector has a transmitter and a sensor which are held in place by a transmitter bracket and a sensor bracket, respectively. The transmitter emits a beam of electromagnetic radiation, and the sensor is positioned in the path of this beam at a point such that the beam travels through a filter between the transmitter and the sensor. The transmitter and sensor are mis-aligned with the air flow at the point where the beam contacts the filter. The transmitter alternates between a transmitting mode and a dormant mode, and the transmitter emits a plurality of electromagnetic pulses during each transmitting mode.