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:
May. 07, 1991
Filed:
Oct. 11, 1990
Hans J Hahn, Emstal, DE;
Wegman & Co. GmbH, Kassel, DE;
Abstract
A water table for a thermal-cutting machine, especially for processing aluminum, with an underwater plasma-based cutting system, with a surface that is immersed in a tank of water and that supports the material, and with a device for raising and lowering the level of the water. The inner surfaces of the side walls of the water tank slope in below the surface that supports the material. A forwarding gutter extends along the bottom of the tank and accommodates an apron-type conveyor. The upper strand of the conveyor extends through the front wall of the tank and up through a water-tight duct to a container that accommodates the coarser particles. A sludge trough is positioned below the gutter at the end that the bottom strand of the conveyor travels toward. A device for raising and lowering the level of the water includes an inflatable cushion located in the tank and under the water.