EP 0237756 B1 19890823 - LOW PRESSURE LIFTING BAG HAVING AN AIRTIGHT CHAMBER WITH A VALVE
Title (en)
LOW PRESSURE LIFTING BAG HAVING AN AIRTIGHT CHAMBER WITH A VALVE
Publication
Application
Priority
DE 3604435 A 19860213
Abstract (en)
1. A low-pressure lifting bag having an airtight chamber the wall (20) of which consists of a fabric covered with rubber or plastic and a valve fitted in this wall (20) having a nozzle (24) which comprises a pipe socket (26) inserted through a hole 22 in the wall (20) and a ring-fastener (28) attached to this pipe socket (26) and linked with the inner side of the wall (20), characterized in that between the ring-fastener (28) and the wall (20) there is arranged a compensation-ring (34) which is of greater external diameter than the ring-fastener (28) and which on the one side is so arranged with the ring-fastener (28) and on the other via a ring-shaped joining-surface (38) is so attached to the wall (20) that between this joining-surface (38) and the outside edge of the ring-fastener (28) there remains a ring-shaped compensation area (36) on which the compensation-ring (34) is linked neither with the wall (20) nor with the nozzle (24).
IPC 1-7
IPC 8 full level
B66F 3/35 (2006.01)
CPC (source: EP US)
B66F 3/35 (2013.01 - EP US); F15B 15/10 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0237756 A1 19870923; EP 0237756 B1 19890823; DE 3604435 A1 19870827; DE 3604435 C2 19890413; DE 3760470 D1 19890928; US 4907781 A 19900313
DOCDB simple family (application)
EP 87101624 A 19870206; DE 3604435 A 19860213; DE 3760470 T 19870206; US 1366687 A 19870212