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:
Oct. 25, 2005
Filed:
Jul. 22, 2003
Manfred Kolbe, Mönchengladbach, DE;
Hans-güntar Schiffers, Mönchengladbach, DE;
Uwe Feldmann, Rommerskirchen, DE;
Wolfgang Krutz, Mönchengladbach, DE;
Manfred Kolbe, Mönchengladbach, DE;
Hans-Güntar Schiffers, Mönchengladbach, DE;
Uwe Feldmann, Rommerskirchen, DE;
Wolfgang Krutz, Mönchengladbach, DE;
SMS Meer GmbH, Monchengladbach, DE;
Abstract
A method and system for the controlled application of fluid pressure of a load, such as a large pipe to be pressure tested utilized small pressure converters which are operated by a common controller at the hydraulic side to fill and pressurize the pipe. One pressure converter is decelerated as it approaches the end of its working stroke while the other pressure converter is accelerated so that the total displacement of the pressurizing fluid remains substantially constant over time.