| Patents for B66B 15 - Main component parts of mining-hoist winding devices (732) |
|---|
| 05/24/1989 | CN2038102U Rope arranging device with variable speed gear |
| 04/06/1989 | DE3732593A1 Drive system for a mine hoisting system |
| 03/22/1989 | CN2034576U Hoist for shaft |
| 11/15/1988 | US4784372 Traction sheave |
| 10/19/1988 | CN88203926U Explosion-proof winch with electro-hydraulic governor |
| 10/19/1988 | CN88202764U Stress-homogenizing drum for heavy capstan engine |
| 10/06/1988 | DE3705567A1 Pit-hauling machine |
| 08/31/1988 | EP0279896A1 Method of manufacturing cast iron sheaves for hoisting devices |
| 08/25/1988 | DE3704924A1 Device and method for the frictional connection of components to shafts or axles |
| 06/28/1988 | US4753322 Triple-wrap traction arrangement |
| 03/01/1988 | CA1233421A1 Hoisting apparatus |
| 01/13/1988 | CN87201244U Rolling disk-type conducting wheel |
| 12/05/1987 | CN86210650U Pressurized explosion-proof lifter |
| 11/03/1987 | US4703835 Hoisting apparatus |
| 07/22/1987 | CN86205112U Rope roller for hoisting pulley in mine |
| 12/31/1986 | CN85201131U Friction type hoist with direct-connection and multirope |
| 11/04/1986 | US4620615 Elevator system |
| 05/27/1986 | US4591025 Traction type elevator system |
| 05/09/1986 | WO1986002624A1 Lifting device |
| 08/21/1985 | EP0151728A1 Cable clamp for shaftwinding plants |
| 07/24/1985 | EP0149387A2 Method and apparatus to alter the relative level of two cages of a mining-hoist winding machine |
| 05/14/1985 | CA1187220A1 Electric elevator car driving device |
| 05/07/1985 | CA1186676A1 Elevator winding device |
| 08/14/1984 | US4465161 Elevator winding device |
| 03/06/1984 | US4434873 Electric elevator car driving device |
| 10/05/1982 | USRE31050 Hoisting device |
| 06/02/1982 | EP0052662A1 Shaft conveyer system |
| 01/09/1979 | CA1045990A1 Elevator system having a drive sheave with rigid but circumferentially compliant cable grooves |
| 12/26/1978 | CA1045109A1 Hoisting device |
| 02/21/1978 | US4074582 Hoisting device |
| 06/21/1977 | US4030569 Traction elevator system having cable groove in drive sheave formed by spaced, elastically deflectable metallic ring members |
| 03/22/1977 | US4013142 Elevator system having a drive sheave with rigid but circumferentially compliant cable grooves |