"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
|Application No.||Application Title||Issue Date|
|20080164097||Collapsible Combination Ladder|
A collapsible stepladder (1) comprising two ladder legs (2, 3), where the legs (2, 3) are hingedly connected to each other in one end. Each of the ladder legs (2, 3) comprises several ladder sections (4a-4d), and w...
|20080073150||Safety Reinforcing Structure for Aluminum Ladder Hinge|
The invention provides aluminum ladder hinge with enhanced safety structure. The hinge is made of flat inner case and outer case. Especially, the hinge has a locking block design to stabilize the angle of opening and closure. There is also a design of a joint reinforcin...
|20060213721||Multiple laddering system - the ultimate foldaway system|
A collapsible enfolding ladder arrangement comprising of: Channel Uprights, Pivotal Rungs, Hinges, Adapter Latches and Top and Bottom Levelers. Including Accessories: Lock bars, Retainers and Pins. When applied appropriately produce Step Stools, Step Ladders and Extensi...