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:
Feb. 10, 2015
Filed:
Jan. 17, 2012
Joseph Kuczynski, Rochester, MN (US);
Melissa K. Miller, Research Triangle Park, NC (US);
Prabjit Singh, Poughkeepsie, NY (US);
Heidi D. Williams, Cary, NC (US);
Jing Zhang, Poughkeepsie, NY (US);
Joseph Kuczynski, Rochester, MN (US);
Melissa K. Miller, Research Triangle Park, NC (US);
Prabjit Singh, Poughkeepsie, NY (US);
Heidi D. Williams, Cary, NC (US);
Jing Zhang, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus is provided, which includes a dust detector, a voltage source, and a controller. The dust detector includes two opposing surfaces and a conductive dust sensor. The two opposing surfaces are disposed in spaced, opposing relation to allow for the passage of airflow between the surfaces, and the conductive dust sensor is disposed at a surface of the two opposing surfaces. The voltage source is configured and controlled to establish an electrostatic field at least partially between the two opposing surfaces to facilitate directing conductive particles in the airflow passing between the two opposing surfaces towards the dust sensor. The controller monitors for a leakage current within the conductive dust sensor and determines whether the leakage current exceeds a predetermined trigger level indicative of the presence of conductive dust, and if so, automatically indicates a conductive dust warning.