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. 20, 1999
Filed:
Feb. 27, 1997
Hideki Abe, Miyagi-ken, JP;
Kunji Murano, Miyagi-ken, JP;
Yoshio Nuiya, Saitama-ken, JP;
Yoshifusa Kanazawa, Saitama-ken, JP;
Yasuo Takagi, Saitama-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
According to the present invention there is provided a highly reliable position sensor capable of preventing the entry of foreign matters such as water and dust from the exterior into a receptacle chamber formed within a housing. Formed in the housing are a mounting opening to be mounted in a sealed state to a throttle body and a receptacle chamber having an opening. The receptacle chamber and the mounting opening are partitioned from each other by a partition wall. A sensor body is mounted into the receptacle chamber and the opening of the chamber is covered with a cover, then a clearance formed between the opening and the cover is filled and sealed with a thermosetting resin such as an epoxy resin. A communication hole for communication between the receptacle chamber and the mounting opening is formed through an operating shaft which is rotating a sliding-element receiver of the sensor body. While the thermosetting resin is heated, the air expanded in the receptacle chamber is allowed to escape through the communication hole to the exterior. After a throttle position sensor as the position sensor has been attached to the throttle body, the communication hole formed in the operating shaft is shut off from the exterior by the mounting surface for the throttle body.