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. 11, 2004
Filed:
Jun. 26, 2002
William H. Scofield, Batavia, IL (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
An alarming apparatus and methods for use with an air filter are disclosed herein. A filament can be stretched across a portion or section of an air filter frame, wherein the portion or section comprises a first locus and a second locus located diagonally opposite the first locus. The filament can be attached at a first end of the filament to the air filter frame at the first locus. A micro-switch can be attached to a second end of the filament at the second locus. Additionally, an alarm can communicate through a communications device (wired and/or wireless) with the micro-switch, such that when the air filter becomes loaded with debris, the air filter deflects thereby causing a force to be exerted on the filament, which in turn triggers the micro-switch to transmit a signal to the alarm indicating that the air filter requires proper attention thereof. The filament can be stretched facing either an upstream or a downstream side of airflow thereof.