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| Number | Title | Issue Date |
| 7410068 | Blondin cableway installation A blondin cableway installation, comprises a pair of carrying cables extending between the two ends of the installation; a carriage provided with a lifting tackle and supported movably on the carrying cables; a lifting cable for operating the lifting tackle, extendi... | 08/12/2008 |
| 7246712 | Logging carriage with towline-operated grapple A logging system including a yarder, a skyline, a towline, a carriage riding on the skyline, and a grapple depending from the carriage for grabbing logs and carrying them back to a landing. The carriage and grapple are moved along the skyline for positioning the gra... | 07/24/2007 |
| 7234605 | Logging grapple carriage A grappling carriage that is relatively lightweight and adapted to forcefully close first and second grapple legs with a log or a bundle of logs contained therein. The grappling carriage has a self-contained power supply that is remotely controlled by the operator. ... | 06/26/2007 |
| 7073673 | Wire rope reeving support system for cargo container handling gantry cranes A wire rope reeving support system for a cargo container handling crane having a transport trolley mounted for reciprocation along a horizontal gantry thereof and having a wire rope load hoisting system for the transport trolley wherein a mechanism is provided mid s... | 07/11/2006 |
| 6742964 | Method for installing conduit or the like on mountainside A method for installing conduits on a mountain is provided. The method includes placing at least one cable longitudinally across a ridge of the mountain and installing the at least one cable on a front side and a back side of the mountain. The front and back sides o... | 06/01/2004 |
| 6588984 | Method for installing conduit or the like on mountain surface using steel cable A method for installing conduits on a mountain is provided. The method includes placing at least one cable longitudinally across a ridge of the mountain and installing the at least one cable on a front side and a back side of the mountain. The front and b... | 07/08/2003 |
| 6145679 | Shiftable tail-block logging skyline A skyline operates on a mountain side from an upper tail-block that is positionable along a transverse cable extending between two elevated anchor points. A balloon is attached to the upper tail-block to assist in supporting the weight of the skyline cabl... | 11/14/2000 |
| 5392935 | Control system for cable crane A cable crane system includes a main cable stretched between two points, a transverse trolley traveling along the main cable, a traction cable for driving the trolley, a bucket hung by a hanging cable, a transverse winch for driving the traction cable for... | 02/28/1995 |
| 4687109 | Radio controlled electric slack puller, brake and battery recharging system An all-electric radio controlled slack pulling, braking and battery recharging system for logging operations on a moutainside is disclosed. Independent battery powered slack pulling and radio and brake electrical systems are provided, together with altern... | 08/18/1987 |
| 4125919 | Cable clamp A cable clamp includes a box-like housing with opposite sidewalls, an open top and opposite end openings. A clamping mechanism within the housing includes a pair of laterally and longitudinally movable, laterally spaced inner clamping blocks with replacea... | 11/21/1978 |
| 4103784 | Single line, traction driven running skyline system A continuous, single line, traction driven cable transportation system, intended for logging applications but not limited thereto. The system is open, such that line can be added to it at any time, whether during rigging, or during operation. Thus, theore... | 08/01/1978 |
| 3948398 | Self-locking log skidding carriage A self-locking log skidding carriage for skidding logs uphill along a skyline to a powered skidding machine. The carriage includes two freely rotatable sheaves, a first for engaging a taut skyline, and a second for rotatable engagement with a dragline com... | 04/06/1976 |
