Abstract: An improved free swinging hammer mill hammer design is disclosed and described for comminution of materials such as grain and refuse. The hammer design of the present art is adaptable to most hammer mill or grinders having free swinging systems. The design as disclosed and claimed is forged increasing the strength of the hammer. The shape of hammer as disclosed and claimed uses this improved strength to reduce or maintain the weight of the hammer while increasing the amount of force delivered to the material to be comminuted. The improved design incorporates comminution edges having increased hardness for longer operational run times.

Abstract: A portable assistive device adaptable to most vehicles with hinged doors. The invention as described allows for anchor unit to rest outside vehicle and to be positioned for use with the door open. The apparatus user can then shut the door without holding the invention in place. As described, the anchor unit is connected to the grip unit with flexible connector straps and does not interfere with operation of the window and does not require the disconnection of the flexible connector straps to transfer the device between vehicles.