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. 07, 1981
Filed:
Nov. 13, 1979
Peter Schillke, Santa Barbara, CA (US);
Robert R Walls, Santa Barbara, CA (US);
Gyrex Corp., Santa Barbara, CA (US);
Abstract
A continuous process for applying a solder coating to copper-coated holes and tracks on a printed circuit board. The upper surface of the circuit board having a flux thereon is contacted with a contact member and the circuit board and contact member are moved through a molten bath of solder. Solder is displaced by the circuit board to produce a buoyant force which presses the circuit board against the contact member. The speed of the contact member in moving through the molten solder is controlled to determine dwell time of the circuit board and maintain contact between the circuit board and the contact member. An apparatus for continuously applying a solder coating to copper-coated holes and tracks on a printed circuit board. The apparatus includes means to contain a bath of molten solder and means to contact the upper surface of a printed circuit board. Also, the apparatus includes means to move the contacted circuit board through the bath of molten solder as the displaced solder exerts an upward buoyant force against the circuit board.