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:
Aug. 19, 2003
Filed:
Dec. 26, 2000
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A gas sensor including an element for measuring the concentration of a gas to be detected which is contained in a gas under measurement; a protector provided to cover a tip end of the element in the axial direction; and a protection cap removably attached to the gas sensor. The protection cap includes a tubular portion which surrounds a side surface of the protector , support portions which project from an inner surface of the tubular portion and reach the side surface of the protector without axially partitioning the space between the inner surface of the tubular portion and the side surface of the protector , and an air-outlet hole for establishing communication between the interior and exterior of the protection cap