| Patents for B66D 3 - Portable or mobile lifting or hauling appliances (4,059) |
|---|
| 12/28/1988 | CN87104151A Motor hoist |
| 12/20/1988 | US4792734 Stepless speed change electric chain block |
| 12/20/1988 | US4792323 Chain guide |
| 12/13/1988 | CA1246540A1 Winches |
| 12/08/1988 | DE3728494C1 Tragbare Seilzugmaschine Portable cable machine |
| 12/06/1988 | US4789135 Operating device for electric hoist |
| 12/06/1988 | CA1246047A1 Snatch block |
| 11/02/1988 | CN88102104A Stepless speed change cranes |
| 10/25/1988 | CA1243661A1 Chain hoist with automatic brake and double chain hooks |
| 10/13/1988 | DE3710346A1 Monorail suspension trolley |
| 10/13/1988 | DE3710331A1 Electric chain pulley block |
| 10/12/1988 | CN87101826A 提升滑轮组 Lifting pulley block |
| 10/05/1988 | EP0284807A2 Electric hoist |
| 10/05/1988 | EP0253808B1 Pulley |
| 09/29/1988 | DE3708936A1 One-hand lever-operated rope-pulling device |
| 09/27/1988 | CA1242432A1 Snatch block with improved hook bolt assembly |
| 09/13/1988 | US4770394 Pulley hoists |
| 09/08/1988 | DE3736287A1 Block and tackle with several blocks |
| 09/06/1988 | US4768754 Manual hoist with overload preventer |
| 09/06/1988 | US4768752 Driving apparatus operating in successive steps |
| 08/30/1988 | US4767101 Cable pulley |
| 08/30/1988 | US4767099 Hoist system |
| 08/02/1988 | US4760993 Snatch block |
| 07/19/1988 | US4757975 Long travel beam jack |
| 06/15/1988 | CN85104335B Prestressed takeup |
| 05/31/1988 | US4747320 Screw and nut drive with rotation lock |
| 05/25/1988 | EP0064080B1 Safety mechanism for hoisting drums |
| 05/10/1988 | US4742992 Pulling a waterproof membrane over a flat roof |
| 05/04/1988 | CN87201655U Portable hoist |
| 04/13/1988 | EP0263105A1 Automatically acting, lockable hoisting block. |
| 03/30/1988 | CN87208415U Manual hoist |
| 03/23/1988 | CN87208737U Load and unload machine for luggage of bus |
| 03/16/1988 | EP0259710A2 Operating device for electric chain block |
| 03/09/1988 | CN87201473U Pulley jib |
| 03/02/1988 | EP0257647A2 Operating device for electric hoist |
| 03/02/1988 | EP0257127A1 Electric chain block |
| 03/01/1988 | US4728138 Automatically acting, lockable hoisting block |
| 02/24/1988 | EP0150187B1 Improvements in or relating to winches |
| 02/10/1988 | CN86210333U Manual two-way hoist |
| 02/09/1988 | US4723757 Ratchet-wheel-pawl assembly and release means for portable winch |
| 02/04/1988 | DE3624484A1 Lifting appliance |
| 01/27/1988 | EP0253808A1 Pulley. |
| 01/26/1988 | US4721286 Split block for extended travel |
| 01/26/1988 | US4721202 Frictional drive units |
| 01/20/1988 | CN87103604A Grader for the stope |
| 01/13/1988 | EP0252313A1 Cable traction device |
| 12/26/1987 | CN87203822U Pedal climbing equipment |
| 12/23/1987 | CN86209877U Portable weight-lifting trolley |
| 12/17/1987 | WO1987007691A1 Cable traction apparatus |
| 12/17/1987 | DE3619829A1 Hinged block |
| 12/15/1987 | US4712772 Power hydraulic gear |
| 12/10/1987 | DE3619263A1 Lever cable pull device which can be operated with one hand |
| 11/25/1987 | EP0246664A2 Stepless speed change electric chain block |
| 11/24/1987 | US4708574 Apparatus for handling objects |
| 11/24/1987 | US4708321 Multiple sheave assembly with angled rollers |
| 10/07/1987 | CN86209533U Differential speed hand tackle |
| 10/06/1987 | US4697790 Pulley hoists |
| 09/23/1987 | EP0238098A2 Hoist |
| 09/22/1987 | CA1227187A1 Portable winch |
| 09/01/1987 | US4690380 Sheave assembly with multiple pulleys used to measure cable angle |
| 09/01/1987 | US4690379 Electric chain block |
| 06/30/1987 | US4676484 Helicopter transportable traveling block |
| 06/24/1987 | EP0226065A2 Screw and nut drive with rotation lock |
| 05/26/1987 | US4667835 Hydraulically operated cranes |
| 05/12/1987 | US4664357 Overload avoiding arrangement for a hoist |
| 05/06/1987 | EP0220968A1 Continuously working hydraulic linear winch |
| 03/03/1987 | US4646805 Chain winch |
| 02/24/1987 | US4645182 Conveying device |
| 02/18/1987 | CN85104335A Prestressed takeup |
| 02/17/1987 | US4643399 Apparatus for counterbalancing tongs |
| 02/03/1987 | US4640496 Dump block for dragline bucket |
| 01/28/1987 | EP0210092A1 Moving device working in a stepwise manner |
| 01/13/1987 | US4636962 Microprocessor-controlled hoist system |
| 01/13/1987 | US4635903 Electric hoist pendant control switch arrangement |
| 01/06/1987 | US4634101 Convertible rope pulling and walking machine |
| 12/31/1986 | WO1986007583A1 Drive apparatus working by successive take-ups |
| 12/31/1986 | CN85204536U Chain and chain wheel device |
| 12/18/1986 | WO1986007343A1 Automatically acting, lockable hoisting block |
| 12/04/1986 | WO1986007042A1 Arrangement for a goods hoist |
| 11/05/1986 | EP0199789A1 Winch |
| 10/29/1986 | CN86102499A Windlass mechanism |
| 10/22/1986 | EP0198273A2 Cable hauling apparatus |
| 10/07/1986 | US4615509 Continuous operation linear hydraulic winch |
| 09/30/1986 | US4614332 Snatch block with improved hook bolt assembly |
| 09/30/1986 | US4614331 Lifting pulley block |
| 08/28/1986 | WO1986004885A1 Pulley |
| 08/12/1986 | US4605111 Hoist |
| 08/06/1986 | EP0189525A2 Winch |
| 07/15/1986 | US4600400 Wheel-shaped objects |
| 07/09/1986 | CN85201579U Hoister built-in an electric motor and reducing mechanism |
| 07/08/1986 | US4598897 Hydraulic tensioning tool |
| 07/02/1986 | CN85107565A Hoist with inclined motion |
| 06/10/1986 | US4593884 Continuous-advance hydraulic cable mover |
| 05/22/1986 | WO1986002916A1 Winch |
| 05/20/1986 | US4589523 Fall arrester and emergency retrieval apparatus and anchor apparatus therefor |
| 05/07/1986 | EP0180395A1 Hoist mechanism |
| 05/07/1986 | EP0179961A1 Gripping block for a linear winch |
| 05/07/1986 | CN85203484U Display device for overload alarm and overload limitation of electric block |
| 03/18/1986 | US4576542 Device for lifting removable automobile tops |
| 03/18/1986 | US4576363 Lever-operated hoist or puller |