| Manitowoc Crane Companies, LLC Patent applications |
| Patent application number | Title | Published |
|---|
| 20110154642 | CRANE HOOK BLOCK - A method of assembling a hook block for a crane includes: providing a sheave housing containing a plurality of sheaves with a pivotal connection link secured to the top of the sheave housing, the sheave housing including extended portions each with a hole therethrough and a housing frame positioned below the plurality of sheaves, the housing frame having a locking surface; placing a cross beam on its side, the cross beam having stabilizing feet resting on the ground; positioning the extended portions of the sheave housing within a plurality of brackets of the cross beam, each bracket with a hole therethrough; aligning the holes of the extended portions of the sheave housing with the holes of the brackets; inserting a shaft through the aligned holes; securing a cap to an end of the shaft to resist lateral movement relative to the holes; and inserting a locking bar between the locking surface of the housing frame and a surface of a bracket of the cross beam, to resist relative movement between the sheave housing and the cross beam during further assembly. | 06-30-2011 |
| 20100243595 | FOLDING JIB MAIN STRUT AND TRANSPORTABLE REEVED STRUT CAPS - A method of assembling a mobile lift crane that includes, during operation, i) a rotating bed having attached thereto a luffing jib hoist drum and line, and a rigging winch drum and line, ii) a boom pivotally mounted on the rotating bed, iii) a luffing jib pivotally mounted to the end of the boom, iv) a first strut also pivotally connected to the end of the boom, and v) a second strut connected to the boom below the connection point of the first strut, the method including: a) pivotally connecting the first strut to the end of the boom; b) pivotally connecting a first section of the second strut near the top of the boom; c) connecting the rigging winch line to the top of the first section; d) pivotally attaching a second section of the second strut to the first section such that the second section lies folded onto the first section, forming a folded second strut; and e) lifting the second section while retracting the rigging winch line to thereby bring the first and second sections into alignment with each other. | 09-30-2010 |
