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:
Jul. 27, 1999
Filed:
Jul. 21, 1997
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A tilt sensor includes a sealed container formed of a container body, a top cover plate adapted to close the container body and provided on one end surface thereof with a recess having a concave surface whose depth gradually increases from a peripheral edge toward a center thereof. The tilt sensor further includes a liquid enclosure containing an air bubble, that is enclosed in the container body. To coincide the center of the configuration of the top cover plate with a line normal at a deepest portion of the concave surface at a grinding operation after molding the top cover plate, an indicia is provided on the line normal to the concave surface at the deepest point of the concave surface.