| HERKULES EQUIPMENT CORPORATION Patent applications |
| Patent application number | Title | Published |
|---|
| 20110240409 | SCISSOR LIFT ASSEMBLY - A scissors-type lift assembly including a base and a platform, the lift assembly having extended and contracted states, with the platform at a relatively greater distance from the base in the extended state than in the contracted state. The lift assembly includes a pair of scissor arms each having opposed first and second ends, and pivotably connected to each other about a central axis located between their respective first and second ends, the first end of each scissor arm coupled to the base, the second end of each the scissor arm coupled to the platform. The lift assembly also has a drive screw mechanism including a shaft, a drive motor rotatably coupled to the shaft, a block threadedly engaged with the shaft and having longitudinal movement relative to the shaft, and a collar relative to which the shaft is rotatable and longitudinally fixed relative to the shaft. The lift assembly includes first and second pairs of crossed links, each link having opposed first and second ends between which extends an edge that faces away from the central axis and defines a recess in the link. The collar and block are each spaced from the central axis and indirectly coupled to both of the pair of scissor arms through a pair of links. | 10-06-2011 |
| 20110139549 | BELT-DRIVEN TRANSPORTATION SYSTEM - A belt-driven transportation system including a first set of pulleys rotatably attached to a first member and a second set of pulleys rotatably attached to a second member. The first and second members have relative movement to each other. The system further includes a unitary belt that is guided through a path defined by the first and second sets of pulleys. A plurality of flange members maintain a proper positioning of the belt on the pulleys. | 06-16-2011 |
| 20110139548 | BELT-DRIVEN TRANSPORTATION SYSTEM - A belt-driven transportation system including a first set of pulleys rotatably attached to a first member and a second set of pulleys rotatably attached to a second member. The first and second members have relative movement to each other. The system further includes a unitary belt that is guided through a path defined by the first and second sets of pulleys with the path substantially lying in a stationary plane, and a plurality of retention rollers. A retention roller is disposed adjacent each pulley, with the belt extending about the pulley and between the pulley and the retention roller. The positioning of the belt substantially on the path is maintained by the plurality of retention rollers, and the first and second members are moved relative to each other with changes in the length of the path. | 06-16-2011 |
