摘要:
A process for mixing concrete onsite in quantities of 1-yard or more, which makes use of the embodiment of a large industrial bag similar to those used for waste management of rubbish and an overhead rail system adapted to a dump trailer, which suspends the bag from straps attached to the bag and pined to the rail system. The four-sided system of columns and rails adapted to the trailer allows two of the four rails to be moved using winches, allowing mixing of the aggregate, cement and water without the use of metallic blades and rotating containers. The winch draws one rail attached to one side of the bag and releases and the opposing winch draws and releases the opposing rail attached to the opposing side of the bag. The bag allows the material to be placed away from the locked gates and opened for unloading concrete.
摘要:
A removable circuit interrupter with circuit-testing capabilities. In one embodiment, a removable circuit interrupter is provided for use with a battery-powered device. The battery-powered device includes a battery and a load that is electrically coupled to the battery. The removable circuit interrupter is configured to be disposed between the battery and the load. The removable circuit interrupter includes a first outer surface having a conductive layer. The removable circuit interrupter further includes a second outer surface having an non-conductive layer. The conductive layer is configured to electrically couple to one of the battery and the load. The non-conductive layer is configured to electrically couple to another one of the battery and the load.
摘要:
A system for recording writing performed on a surface includes a rechargeable stylus, a rechargeable eraser, and a charging station for one or both of the rechargeable stylus and the rechargeable eraser. Each of the rechargeable stylus and the rechargeable eraser includes a pair of charging rings. The charging rings are disposed so as to contact a corresponding pair of charging contacts on a receptacle on the charging station for the stylus or the eraser. The receptacle, charging contacts, and charging rings cooperate to charge rechargeable stylus or the rechargeable eraser when the stylus or eraser is placed into the receptacle.