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. 30, 2016
Filed:
Jul. 25, 2012
Kazunori Ishikawa, Toyota, JP;
Masaya Nakai, Tokoname, JP;
Kazunori Ishikawa, Toyota, JP;
Masaya Nakai, Tokoname, JP;
AISIN AW CO., LTD., Anjo, JP;
Abstract
An electromagnetic pump including a suction check valve including a tubular portion and a flange portion that extends in a radial direction from an end edge of the tubular portion, the suction check valve being formed with a through hole that penetrates the tubular portion and the flange portion to form a suction port in an end surface of the flange portion. A strainer attached to the suction port and having a pore forming region which is larger than an inside diameter of the through hole at the tubular portion and in which a large number of pores are formed. The suction check valve is formed with a diameter reducing portion formed such that the inside diameter of the through hole is reduced from the flange portion toward the tubular portion with a degree of diameter reduction varied from a large value to a small value.