EP 0897480 B1 20020717 - DEVICE FOR SAVING ENERGY
Title (en)
DEVICE FOR SAVING ENERGY
Title (de)
VORRICHTUNG ZUR ENERGIEEINSPARUNG
Title (fr)
DISPOSITIF POUR ECONOMISER DE L'ENERGIE
Publication
Application
Priority
- DE 19617950 A 19960504
- EP 9701613 W 19970329
Abstract (en)
[origin: US6266959B1] A device to save energy for hydraulically-operated tool shanks uses a piston-type accumulator having a housing in which at least two longitudinally displaceable pistons are arranged and are connected to by a coupling part. The coupling part is guided to be longitudinally displaceable in a partition wall of the housing which bounds two fluid chambers with the two pistons. At least one of the pistons bounds at least partially, a fluid chamber and a pre-loaded chamber with presettable internal gas pressure on the opposite sides. A wider range of possible applications is achieved for hydraulically-operated tool shanks using this energy saving device.
IPC 1-7
IPC 8 full level
F15B 1/02 (2006.01); F15B 1/24 (2006.01); F15B 21/14 (2006.01)
CPC (source: EP US)
F15B 1/24 (2013.01 - EP US); F15B 2201/205 (2013.01 - EP US); F15B 2201/312 (2013.01 - EP US); F15B 2201/32 (2013.01 - EP US); F15B 2201/411 (2013.01 - EP US); F15B 2201/4155 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT SE
DOCDB simple family (publication)
US 6266959 B1 20010731; AT E220766 T1 20020815; CZ 295658 B6 20050914; CZ 299298 A3 19981216; DE 19617950 A1 19971113; DE 59707734 D1 20020822; EP 0897480 A1 19990224; EP 0897480 B1 20020717; JP 2000509477 A 20000725; JP 3857321 B2 20061213; SK 148198 A3 19990312; SK 284792 B6 20051103; WO 9742417 A1 19971113
DOCDB simple family (application)
US 15548498 A 19980929; AT 97915466 T 19970329; CZ 299298 A 19970329; DE 19617950 A 19960504; DE 59707734 T 19970329; EP 9701613 W 19970329; EP 97915466 A 19970329; JP 53946197 A 19970329; SK 148198 A 19970329