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:
Sep. 12, 1978
Filed:
Apr. 11, 1977
Koji Nomaki, Yokohama, JP;
Yoshihito Saoyama, Yokohama, JP;
Asahi Glass Company, Ltd., Tokyo, JP;
Abstract
A difficultly solderable metal of iron, nickel, copper or an alloy thereof having an oxide surface is soldered by dipping in a bath of a molten solder alloy consisting essentially of 15 to 98% by weight of Zn, 85 to 2% by weight of Sn, 0.01 to 0.5% by weight of Al and 0 to 5% by weight of Ag to which ultrasonic vibration is applied. The bath structure comprises a vessel, a tip element for imparting ultrasonic vibration and a block member for concentrating the ultrasonic vibration. Said element and member being fabricated of a metal selected from the group consisting of tantalum, niobium, molybdenum, tungsten and an alloy thereof having at least one of these metals as the main component.