Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 6439408 | Crane with jib having multiple functions The crane comprises a mast (6), mounted on a chassis (1, 3), and a distributor jib (7) composed of successive elements (14, 15, 16) articulated on one another about horizontal axes (24, 29), the first jib element (14) being articulated about a horizontal ... | 08/27/2002 |
| 6202868 | Collapsible hoist A vertical lift hoist and winch is taught which can be used, for example, for suspending wild game animals for the purpose of field dressing. The assembly is collapsible without any disassembly of major parts, to be able to fold up into a convenient carry... | 03/20/2001 |
| 5409123 | Cable guide for the trolley traveling winch of gantry cranes A cable guide for the trolley traveling winch on gantry cranes for container, general-cargo, and grab operation, with a land-side support and a water-side jib that can be tilted up, the necessary deflection rollers, tensioning devices, and at least one ca... | 04/25/1995 |
| 4930970 | Collapsible hoist for a truck bed A hoisting apparatus for the use in trucks has frame members 26, 28, 30, 32, 34 which are pivotally moveable and slidable connected to one another such that the apparatus can be assembled and disassembled by a single person and placed in a transporting po... | 06/05/1990 |
| 4601402 | Steerable concentric ring segment supported lift crane Front and rear pairs of crawler assemblies are provided for supporting concentric ring segments disposed forwardly under the boom and rearwardly under the counterweight so the crane can travel under load and swing through at least a partial horizontal arc... | 07/22/1986 |
| 4567990 | Self-balancing crane A pivoted arm counterbalance system for a self balancing crane provides a counterbalancing moment exactly equal to the overturning moment of the crane by the utilization of a dynamic balancing system in which a drive cable having a tension related to the ... | 02/04/1986 |
| 4544071 | External pendant pay-out system with anti-droop control An apparatus is disclosed for maintaining a predetermined mast-boom working angle of a pendant supported boom substantially constant during extension and retraction of the boom. One embodiment of the invention includes control means connected between the ... | 10/01/1985 |
| 4492311 | Coupling and latching mechanism for extensible boom A coupling and latching mechanism for a multisection extensible boom that includes a manual section and is operable from a remote location such as the cab of a crane. The mechanism includes pairs of spaced jaw type couplings secured to adjacent boom secti... | 01/08/1985 |
| 4492312 | External pendant pay-out system with anti-droop control An apparatus is disclosed for maintaining a predetermined mast-boom working angle of a pendant supported boom substantially constant during extension and retraction of the boom. One embodiment of the invention includes control means connected between the ... | 01/08/1985 |
| 4489838 | Low droop multi-part pendant supported boom A telescopic boom is disclosed which is pivotally supported by its base section for movement about a horizontal axis. The boom is supported by a live mast through multi-part pendant lines, which pendant lines are each reeved over sheaves attached to the b... | 12/25/1984 |
| 4341315 | Marine derrick arrangement Marine derrick having a horizontal turn table supporting a derrick boom, a derrick post and all winches each handling separately a cargo fall, a topping lift wire and guy pendants thereon. A guy winch is located in center portion of the turn table at a le... | 07/27/1982 |
| 4303166 | Horizontal slewing crane A crane having a fixed mast and a boom pivotally mounted at the top of the mast for movement in a horizontal plane through at least 180° and in a vertical plane downwardly from the horizontal plane at any position of the boom relative to the vertical axi... | 12/01/1981 |
