Abstract: A shower receptor installation assembly includes a dense foam underlayment, a base with a sloping floor that fits onto the underlayment, a mesh member attached to the threshold of the base with adhesive, a plurality of strike rails, and a plurality of screed blocks, two or more of the screed blocks being attached with removable adhesive to the bottom edge of each strike rail.

Abstract: The combustion initiator of this invention preferably includes at least two separate combustible chemical constituents including a fuel cell and an ignition pellet. An igniter has a third combustible material thereon which can be manually caused to move and bring the combustible material into contact with the ignition pellet. The combustible material and ignition pellet are highly reactive with one another so that such contact therebetween causes the ignition pellet to commence combustion. The ignition pellet is adjacent the fuel cell and combusts with sufficient temperature to cause the fuel cell to commence combustion. The fuel cell and ignition pellet are preferably contained within an enclosure which protects the igniter from being manipulated unless the enclosure is first opened. The fuel cell material burns hot enough and long enough to cause combustion of surrounding fuels, such as wood.

Abstract: A swinging screen door and associated frame are provided for coupling to a doorway of a structure such as a house. Hinges are provided which pivotably connect the doors to the frame in a fashion allowing the doors to pivot inward through the doorway and outward away from the doorway. The hinge includes a knuckle joint between the frame and a bottom of each door. A knuckle and recess of the knuckle joint are provided with a complemental form to cause the knuckle joint to bias the door toward a closed position. A ramp and wing combination in the knuckle joint cause the door to be elevated when moved away from the closed position so that the door can more easily clear obstacles on the floor adjacent the doorway. A recoil joint axially aligned with the knuckle joint holds a top of the door relative to the frame.