EP 0062810 A3 19830622 - LIFTING DEVICE
Title (en)
LIFTING DEVICE
Publication
Application
Priority
DE 3115206 A 19810415
Abstract (en)
[origin: ES8303239A1] A hoist comprises a housing carrying a fixed and slidable sheave set which are engaged by a rope. A piston and cylinder combination are connected to the slidable sheave set for moving it and thus moving a load connected to the rope. The piston has a threaded rod connected to the displaceable sheave set which carries a threaded nut. The axial movement of the nut is restrained by a sleeve which permits rotation of the nut with axial movement of the rod. If the axial movement of the rod accelerates above a selected limit, for example when the load is abruptly removed from the rope, the nut moves against a friction surface in the sleeve to brake the rotation thereof and thus brake the axial movement of the rod.
IPC 1-7
IPC 8 full level
B66D 3/18 (2006.01)
CPC (source: EP US)
B66D 3/18 (2013.01 - EP US)
Citation (search report)
- [A] FR 2359065 A1 19780217 - MIFAGO AG [LI]
- [AD] DE 7934679 U1 19800430
- [A] DE 808277 C 19510712 - COSBY DONALD PHILIPPS SMALLPEI
- [A] US 3286989 A 19661122 - BANGERTER KENNETH R, et al
- [A] US 3368796 A 19680213 - ULBING OTMAR M
- [A] US 3669411 A 19720613 - MCKENDRICK LORNE J
- [A] US 3675899 A 19720711 - MCKENDRICK LORNE J
- [A] US 2772085 A 19561127 - DODGE ADIEL Y
- [A] GB 777963 A 19570703 - CAMPBELL & ISHERWOOD LTD, et al
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0062810 A2 19821020; EP 0062810 A3 19830622; AU 8213682 A 19821021; BR 8202159 A 19831220; CA 1174228 A 19840911; CS 235093 B2 19850416; CS 260282 A2 19840618; DE 3115206 A1 19821118; DE 3115206 C2 19830317; ES 511412 A0 19830216; ES 8303239 A1 19830216; JP S57180592 A 19821106; US 4455013 A 19840619; YU 78482 A 19861231; ZA 822565 B 19830330
DOCDB simple family (application)
EP 82102547 A 19820326; AU 8213682 A 19820330; BR 8202159 A 19820414; CA 400997 A 19820414; CS 260282 A 19820413; DE 3115206 A 19810415; ES 511412 A 19820414; JP 6227182 A 19820414; US 36618882 A 19820407; YU 78482 A 19820408; ZA 822565 A 19820415