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:
Oct. 18, 2011
Filed:
May. 28, 2008
Takumi Matsumoto, Tsukubamirai, JP;
Masaru Narita, Tsukubamirai, JP;
Takumi Matsumoto, Tsukubamirai, JP;
Masaru Narita, Tsukubamirai, JP;
SMC Corporation, Tokyo, JP;
Abstract
A solenoid valve that is constructed as follows: a cap is mounted on a movable iron core such that forward movement thereof is restricted; a pressing member is displaceably arranged between abutting seat surfaces of the cap and the movable iron core; biasing forces F, F, and Fof an iron core return spring for biasing the movable iron core toward a initial position, a cushioning spring provided between the movable iron core and the pressing member, and a valve return spring for biasing a valve member in a direction to open a valve are set so as to be FFF; and gaps x and y are provided between the pressing member and the movable iron core and between the pressing member and the cap, respectively, when the movable iron core is at the initial position.