Richard P Hebert

US Patent:

60737743, Jun 13, 2000

Filed:

Apr 17, 1998

Appl. No.:

9/062266

Inventors:

Richard P. Hebert - Lanesboro MA
Michael McKenzie - Nashua NH

Assignee:

Beloit Technologies, Inc. - Wilmington DE

International Classification:

B03D 124
B03D 114

US Classification:

209170

Abstract:

A mixture of air, paper stock made from recycled paper, foaming agents and surfactants are injected into a pressurized container. The container has a stock inlet at an end opposite a stock outlet, and three outlets arranged along the top of the container between the stock inlet and the stock outlet. The first top outlet nearest the stock inlet is separated from the second and third outlets by a baffle, and the second and third outlets are separated from the stock outlet by a baffle. Each outlet has a valve which controls flow from that outlet. By adjusting the outlet valves, foam and waste ink is vented from the first and second outlets from the stock inlet, while stock is vented from the third outlet which is closest to the stock outlet. The stock passing through the third outlet is recycled through the container.