Global Patent Index - EP 0752357 A3

EP 0752357 A3 19971105 - A piston assembly for hydraulically operated piston-type retarders

Title (en)

A piston assembly for hydraulically operated piston-type retarders

Title (de)

Eine Kolbenanordnung für hydraulisch betätigte Kolbenretarder

Title (fr)

Un arrangement de piston pour ralentisseurs à piston actionnés hydrauliquement

Publication

EP 0752357 A3 19971105 (EN)

Application

EP 96304982 A 19960705

Priority

ZA 955575 A 19950705

Abstract (en)

[origin: EP0752357A2] The invention relates to a piston assembly for use in a hydraulically operated piston-type retarder. The piston assembly comprises a piston rod 1, a piston head 2, a speed spring 3, a closure member 4, a spacer member 5, a retainer member 9 and a lock nut 6. The piston head 2 is provided with a set of first hydraulic fluid passageways with corresponding energy extraction ports 8 and a set of second hydraulic fluid passageways with corresponding idling ports 7. A method of retarding wagon stock is also provided. <IMAGE>

IPC 1-7

B61K 7/02

IPC 8 full level

B61K 7/02 (2006.01)

CPC (source: EP)

B61K 7/025 (2013.01); E05F 5/10 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0752357 A2 19970108; EP 0752357 A3 19971105; CA 2180508 A1 19970106

DOCDB simple family (application)

EP 96304982 A 19960705; CA 2180508 A 19960704