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:
Sep. 24, 2019
Filed:
Feb. 16, 2017
Viega Technology Gmbh & Co. KG, Attendorn, DE;
Christian Rischen, Eslohe, DE;
Jörg Rosenthal, Reichshof-Eckenhagen, DE;
Uwe Grünkemeier, Kaarst, DE;
Viega Technology GmbH & Co. KG, Attendorn, DE;
Abstract
The invention is based on the technical problem of improving the pressing in of large press fittings, said problem being solved by a device for transmitting a mechanical force for driving a pressing device for press fittings, having a storage container () for hydraulic fluid, having a pump cylinder (), having a working cylinder (), having a first line () for connecting the storage container () to the pump cylinder (), having a second line () for connecting the pump cylinder () to the working cylinder (), and having a third line () for connecting the working cylinder () to the storage container (), wherein means () for preventing a return flow into the storage container () are provided in the first line (), wherein means () for preventing a return flow into the pump cylinder () are provided in the second line (), wherein switching means () for opening and closing the third line () are provided, and wherein the swept volume (VA) of the working cylinder () is configured to be greater than the swept volume (VP) of the pump cylinder (). The invention also relates to a corresponding method.