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:
Mar. 15, 2005
Filed:
Nov. 26, 2002
Leif Hansen, Sønderborg, DK;
Peter J. M. Clausen, Nordborg, DK;
Christen Esperson, Augustenborg, DK;
Jan Petersen, Egernsund, DK;
Leif Hansen, Sønderborg, DK;
Peter J. M. Clausen, Nordborg, DK;
Christen Esperson, Augustenborg, DK;
Jan Petersen, Egernsund, DK;
miniBOOSTER HYDRAULICS A/S, Sønderborg, DK;
Abstract
A double-acting hydraulic pressure intensifier includes a supply connection, a return connection, a high-pressure connection. An intensifier piston assembly includes a low-pressure piston arranged in a low-pressure cylinder and two high-pressure pistons connected to the low-pressure piston each arranged in a high-pressure cylinder. A switching valve assembly includes a displace able, hydraulically controlled valve element which on its two opposite sides in the direction of displacement has control pressure chambers with pressure application areas of different sizes, namely, a first control pressure chamber with a smaller pressure application area and a second control pressure chamber with a larger pressure application area. A stop plug is arranged between the second control pressure chamber and the supply connection.