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. 06, 1984
Filed:
Apr. 13, 1982
Bo H Hakanson, Lund, SE;
Crafon Medical AB, , SE;
Abstract
Methods for producing thermistors having predetermined resistance values at predetermined temperatures are disclosed. The methods include providing a sheet of electrically non-conductive material, applying a layer of electrically conductive material to the sheet in a repeating, spaced pattern so as to produce a number of electrically conductive material portions and at least one space between them, applying a layer of thermistor material to that space in order to bridge the pairs of electrically conductive material portions and produce at least one thermistor strip having a substantially constant resistance value along its length, measuring the resistance of the thermistor strip between the pairs of electrically conductive material portions, determining from the measured resistance value the length of the thermistor strip required to produce a thermistor having the predetermined resistance value at the predetermined temperature, and producing a plurality of thermistors from the thermistor strip by transversely dividing the strip in accordance with the required lengths. In addition, thermistors produced by this method are also disclosed, as are thermometers which include these thermistors.