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United States Patent | 5,195,686 |
Johnson ,   et al. | March 23, 1993 |
At least one core hole is provided adjacent an edge of a rock crusher component and removably receives a connector capable of attachment to a lifting line. In one embodiment, the connector is a bolt and the core hole has an enlarged portion for receiving a nut in a non-rotating fit. The nut receives a set screw plug when the bolt is removed. In another embodiment a hook and eye member is employed and the hook portion thereof engages the enlarged portion of the core hole. The connector includes a bracket that connects it with a lift line.
Inventors: | Johnson; Louis W. (2435 Prairie Rd., Eugene, OR 97402); Johnson; Bruce G. (2435 Prairie Rd., Eugene, OR 97402) |
Appl. No.: | 848155 |
Filed: | March 9, 1992 |
Intern'l Class: | B02C 023/00 |
Field of Search: | 241/293,286 403/205,405.1,403 |
3355114 | Nov., 1967 | Motz | 241/293. |
4289280 | Sep., 1981 | Mitrofanov | 241/286. |
4710208 | Dec., 1987 | Ziemer et al. | 403/403. |
4830531 | May., 1989 | Condit et al. | 403/405. |