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. 04, 2008
Filed:
Dec. 19, 2007
Masumi Sakai, Kyoto, JP;
Masumi Sakai, Kyoto, JP;
Shimadzu Corporation, Kyoto-fu, JP;
Abstract
Disclosed is a thermal mass flowmeter, which comprises a heating unit disposed on an outer peripheral surface of a capillary tube, and a pair of temperature-sensing units each provided as a separate component from said heating unit. The temperature-sensing units are disposed on the outer peripheral surface of the capillary tube at respective positions equally distant from the heating unit toward an upstream side and a downstream side of the capillary tube. Each of the temperature-sensing units has a structure in which a temperature-sensing element is covered by a protective resin molded around the temperature-sensing element. The temperature-sensing element consists of a thermistor or a resistance temperature sensor. The temperature-sensing element is disposed to be displaced to a contact surface of the molded resin with the capillary tube relative to a center of the molded resin.