Patent References 2254542 2694597 3405661 Trailer apparatus Drop frame trailer construction Double drop trailer with two lifts Transport trailer with collapsible shelves, and method of using such trailer Patent #: 5096216 InventorApplicationNo. 194490 filed on 02/10/1994US Classes:414/495, Having elevating load body410/14, Elevatable deck suspended from hoist line414/540Raising or lowering of load or load holder includes vertical, rectilinear movementExaminersPrimary: Huppert, Michael S.Assistant: Gordon, Stephen T. Attorney, Agent or FirmForeign Patent References
International ClassB60P 001/02Foreign Application Priority Data1993-02-10 GBAbstractA goods vehicle has a body with upper and lower load-bearing floors and each mounted for vertical movement within the body. The upper floor is raised and lowered by a hoist. Telescopic links connect the two floors such that when the upper floor is less than a certain height above the lower floor it can move independently of the lower floor, but when the upper floor is lifted above such height it entrains the lower floor and the two floors move together. In another embodiment the two floors are fixed together for movement together over the full range of vertical movement of the upper floor.Field of SearchElevatable deck suspended from hoist lineLift simultaneously erects pivoted prop Multilevel deck; i.e., four-wheel support On dropped-center car On dropped section freight carrier Vertically swingable from hinge at freight carrier wall Having elevating load body VEHICLE WITH LOAD-RECEIVING PORTION AND MEANS FOR RELOCATING A LOAD THEREALONG OR THEREWITHIN Raising or lowering of load or load holder includes vertical, rectilinear movement Auxiliary floors Dropped bottom Load distribution adjustment | |