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:
Nov. 20, 2001
Filed:
Nov. 03, 2000
Larry Nicholson, Nevada City, CA (US);
Cliff Tyner, Grass Valley, CA (US);
Ronald Newton, Carson City, NV (US);
Other;
Abstract
The present temperature monitor is comprised of a thermistor and a reference resistor connected to a capacitor in parallel. The capacitor is charged through the thermistor by a microcontroller to determine the thermistor charging time, discharged, and then charged through the reference resistor to determine a reference charging time. The thermistor charging time is divided by the reference charging time to determine the thermistor value, which is converted into an actual temperature by using a conventional algorithm. The microcontroller is programmed to activate various indicators to show the ambient temperature relative to one or more acceptable ranges, whether the temperature has reached the acceptable ranges within an acceptable time period, and whether the temperature has had an upward trend prior to reaching the acceptable ranges.