Patent ID: 8091758
Filing Date: 2012-01-10
Classification: B23K

Abstract:
1. A wave soldering bath comprising a bath body and a nozzle disposed in the bath body, the nozzle comprising: a duct having a bottom surface spaced from a bottom inner surface of the bath body over an entire length of the duct and having a horizontally extending portion which extends generally horizontally in a first direction between a first end and a second end thereof, an inlet for molten solder comprising an opening formed in the bottom surface of the first end, and an engaging portion extending generally vertically upwards from the second end, the engaging portion having an outlet for molten solder at its upper end, the duct having a lengthwise direction and a widthwise direction and having a width in the widthwise direction which is greater than a width of the engaging portion measured in a direction parallel to the widthwise direction of the duct; a cylinder disposed in the first end of the horizontally extending portion of the duct, the cylinder having a lower open end communicating with the inlet and an upper open end opposing and spaced from an upper inner surface of the first end of the horizontally extending portion; and a spiral pump rotatably disposed inside the cylinder for drawing fluid upwards through the inlet and into the duct from a space between the bottom surface of the duct and the bottom inner surface of the bath body.