Abstract: A portable concrete mixer includes a frame, a hopper, coupled to the frame, for receiving therein dry commercially available prepackaged concrete mixes containing gravel aggregates, a chute coupled to the hopper, a water supply system that supplies water to the chute, a motor, and an auger coupled to and rotated by the motor. The auger includes a shaftless helical auger body extending from the hopper into the chute via an aperture in the hopper. The shaftless helical auger body has an interior volume and a plurality of fingers extending from the auger body into the interior volume. The shaftless helical auger body has an uneven pitch such that a second portion of the helical auger body in the chute has a greater pitch than a first portion of the helical auger body in the hopper.

Abstract: A portable concrete mixer includes a frame, a hopper, coupled to the frame, for receiving therein dry commercially available prepackaged concrete mixes containing gravel aggregates, a chute coupled to the hopper, a water supply system that supplies water to the chute, a motor, and an auger coupled to and rotated by the motor. The auger includes a shaftless helical auger body extending from the hopper into the chute via an aperture in the hopper. The shaftless helical auger body has an interior volume and a plurality of fingers extending from the auger body into the interior volume. The shaftless helical auger body has an uneven pitch such that a second portion of the helical auger body in the chute has a greater pitch than a first portion of the helical auger body in the hopper.

Abstract: In at least one embodiment, a machine for making a box blank from a sheet of box-making material includes a frame, a plurality of rollers, coupled to the frame, for moving the sheet along a material handling path, and a rail coupled to the frame adjacent to the material handling path. The machine further includes a carriage assembly including a first motor and a blade selectively deployable by the first motor, a second motor that, via a linkage, moves the carriage assembly along the rail, and a control circuit that controls the first and second motors to selectively deploy the blade to cut the sheet to form a box blank.

Abstract: A protective shelter is presented. The protective shelter includes a substantially cylindrical wall member defining a shelter interior. The wall member has a first end and a second end and an opening formed there through. A domed member is coupled to the first end of the wall member. A door coupled to the wall member. The door is openable to permit ingress and egress into and out of the shelter interior through the opening and being closeable to cover the opening. At least one anchor point is coupled to the wall member adjacent to the second end, such that the protective shelter can be anchored to an underlying substrate.

Abstract: A protective shelter is presented. The protective shelter includes a substantially cylindrical wall member defining a shelter interior. The wall member has a first end and a second end and an opening formed there through. A domed member is coupled to the first end of the wall member. A door coupled to the wall member. The door is openable to permit ingress and egress into and out of the shelter interior through the opening and being closeable to cover the opening. At least one anchor point is coupled to the wall member adjacent to the second end, such that the protective shelter can be anchored to an underlying substrate.

Abstract: A protective shelter is presented. The protective shelter includes a substantially cylindrical wall member defining a shelter interior. The wall member has a first end and a second end and an opening formed there through. A domed member is coupled to the first end of the wall member. A door coupled to the wall member. The door is openable to permit ingress and egress into and out of the shelter interior through the opening and being closeable to cover the opening. At least one anchor point is coupled to the wall member adjacent to the second end, such that the protective shelter can be anchored to an underlying substrate.