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:
Jan. 19, 2021
Filed:
Jan. 31, 2015
North Carolina State University, Raleigh, NC (US);
James P. Dieffenderfer, Raleigh, NC (US);
Mike A. Brown, Raleigh, NC (US);
Leigh M. Johnson, Raleigh, NC (US);
John F. Muth, Raleigh, NC (US);
North Carolina State University, Raleigh, NC (US);
Abstract
A spirometer includes a housing, a mouthpiece coupled to the housing, and a measurement unit. The measurement unit is configured to receive air expelled by a user, and generate an electrical quantity corresponding to a peak expiratory flow or a forced expiratory volume based on the expelled air. The spirometer also includes a processing module supported by the housing, and configured to receive the electrical quantity from the measurement unit, a display coupled to the measurement unit to display an indication of the peak expiratory flow or the forced expiratory volume, and an energy harvester. The energy harvester is coupled to the measurement unit and the processing module, and is configured to receive energy from one of a group consisting of the measurement unit and an energy sensor, store the received energy in an energy storage device, and transfer the energy to the processing module.