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. 13, 2013
Filed:
Aug. 26, 2009
Hiroaki Shimizu, Kakogawa, JP;
Hiroaki Shimizu, Kakogawa, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, JP;
Abstract
An adjusting screw structure of an oil immersed solenoid comprises a movable core provided in a first space of a main body case to be movable in an axial direction. The core is biased by an adjusting spring to be pulled by a fixed magnetic pole portion. An adjusting screw capable of adjusting biasing force of the adjusting spring is included. The adjusting screw structure includes an air-bleeding plug configured to detachably attach to and seal an opening end portion of a rear case, which communicates with the first space. The air-bleeding plug includes an internal screw portion that threadedly engages the adjustable screw. A detachable mechanism is configured to attach the air-bleeding plug to the opening end portion, locating the air-bleeding plug at a predetermined attachment position in a movement direction of the adjusting screw. Thus, air in a solenoid can be removed without causing a biasing force error.