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:
Jan. 09, 2001
Filed:
Jul. 16, 1999
Abstract
Metal surfaces are contacted with a solution of a process bath (,), for example a phosphating or pickling solution, which comprises several components in aqueous solution, the composition of the process bath (,) being maintained within a given range by addition of solutions or gases, in particular air. The profitability is improved considerably if the solution of the process bath (,) is circulated via a first line (,) and a circulating pump (,) and the solution to be added and/or the gas to be added is fed to the process bath where, as a consequence of the ending of the line (,), vigorous thorough mixing prevails, or if the solution to be added or the gas to be added is fed to a suction pump (,), the solution to be added or the gas to be added mixing with the circulated solution.