EP 1386878 A1 20040204 - Hydraulic stone grab with means to incite additional functions
Title (en)
Hydraulic stone grab with means to incite additional functions
Title (de)
Hydraulischer Steingreifer mit Mitteln für Nebenfunktionen
Title (fr)
Grappin hydraulique de briques avec des moyens pour des fonctions additionnelles
Publication
Application
Priority
NL 1021187 A 20020731
Abstract (en)
To adjust a hydraulically actuated stone grab (1) to stone packets of different dimensions, locking pins (13) have to be operated by auxiliary cylinders (12). To operate the auxiliary cylinders (12), a switching mechanism, comprising cam operated valves (5,6), is installed in the grab impression to that the hydraulic fluid is sent to the auxiliary cylinders (12) or to the hydraulic clamping cylinder (9). <IMAGE>
IPC 1-7
IPC 8 full level
B66C 1/44 (2006.01)
CPC (source: EP)
B66C 1/447 (2013.01)
Citation (search report)
- [A] DE 29717320 U1 19980108 - HERMANN STEINWEG KG BAUMASCHIN [DE]
- [A] US 2370528 A 19450227 - FONTAINE ROBERT A
- [A] FR 2159342 A1 19730622 - BRUN PAUL LE
- [A] US 2564357 A 19510814 - FALKNER ALBERT R
- [A] GB 1556369 A 19791121 - HY MAC LTD
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1386878 A1 20040204; EP 1386878 B1 20041103; AT E281399 T1 20041115; DE 60300132 D1 20041209; NL 1021187 C2 20030606
DOCDB simple family (application)
EP 03077162 A 20030710; AT 03077162 T 20030710; DE 60300132 T 20030710; NL 1021187 A 20020731