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. 10, 2012
Filed:
Oct. 08, 2004
Akira Takaguchi, Toyama, JP;
Issaku Sato, Tokyo, JP;
Noboru Hashimoto, Toyama, JP;
Junichi Okamura, Toyama, JP;
Akira Takaguchi, Toyama, JP;
Issaku Sato, Tokyo, JP;
Noboru Hashimoto, Toyama, JP;
Junichi Okamura, Toyama, JP;
Senju Metal Industry Co., Ltd., Tokyo, JP;
Abstract
A wave soldering tank includes a soldering tank body for housing molten solder and a solder feed chamber disposed within the soldering tank body. An axial-flow, multiple-blade screw-type pump is disposed so as to draw molten solder into the solder feed chamber through an inlet and discharge the molten solder through an outlet. In a preferred embodiment, the pump includes a rotatable hub and a plurality of helical blades secured to the hub at equal intervals in the circumferential direction of the hub, each of the blades overlapping an adjoining one of the blades when the blades are viewed in the axial direction of the impeller.